CN101678369B - Cyclone separator and method for separating matter from a gas flow - Google Patents

Cyclone separator and method for separating matter from a gas flow Download PDF

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Publication number
CN101678369B
CN101678369B CN2008800197084A CN200880019708A CN101678369B CN 101678369 B CN101678369 B CN 101678369B CN 2008800197084 A CN2008800197084 A CN 2008800197084A CN 200880019708 A CN200880019708 A CN 200880019708A CN 101678369 B CN101678369 B CN 101678369B
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cyclone separator
connecting portion
separator
air
flow
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CN101678369A (en
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P·诺里
拉米·阿尔托宁
尤哈·坦特尔
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Valmet Technologies Oy
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Metso Paper Oy
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06Construction of inlets or outlets to the vortex chamber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C2003/006Construction of elements by which the vortex flow is generated or degenerated

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Abstract

The invention relates to a cyclone separator (1) for separating material to be separated from the gas flow. The cyclone separator comprises a separator chamber (2), an inlet connection (3) for feeding gas into the separator chamber (2), and a discharge connection (4) for discharging gas from the separator chamber (2). The separator chamber, the inlet connection and the discharge connection have a central axis and a wall. The cyclone separator also comprises a separation opening (7) for discharging separated material from the separator chamber (2), and in the inlet connection (3) and/or the separator chamber (2) at least one guide vane (8a) for directing the gas flow towards the wall (11 ) of the separator. The guide vane has a first surface (12) and a longitudinal axis substantially parallel to it, and a base portion by means of which the guide vane is arranged in conjunction with the central axis of the inlet connection and/or that of the separator chamber, from which conjunction the first surface and the longitudinal axis is arranged radially so that they protrude towards the wall of the separator chamber and/or that of the inlet connection. At least a portion of the first surface of the guide vane is arranged, by turning it around its longitudinal axis or in a similar way, at an angle (a) which is 1-90 degrees, preferably 5-70 degrees, very preferably 10-60 degrees in relation to the main direction (10) of the gas flow. The invention also relates to a method for separating material from a gas flow.

Description

Cyclone separator reaches the method for separate substance from air-flow
Technical field.
The objective of the invention is cyclone separator and the method described in a kind of preamble of liking independent claims enclosed.
Background technology
In the multiple industrial processes of removing impurities from gaseous material (for example water droplet), need to use cyclone separator.In these operations, also can cyclone separator be arranged on before the muffler, to keep sound absorption qualities.
For example, registered utility model FI 2242 has described a kind of being used for from the air-flow separating particles, such as the cyclone separator of water droplet, the spittle and other similar impurity.This separator comprises and is used for the gas of treating removal of contamination is input to the input channel of separator chamber and is used for from the separator chamber of air-flow separating particles that the diameter of this separator chamber is greater than the diameter of input channel.This cyclone separator also comprises gas passing away and particle passing away.This cyclone separator also has the input channel of placing, is used to make air-flow to get into the vane group of vorticla motion (swirling motion).In the gas passing away, also be provided with vane group, get into the air-flow of vorticla motion in order to lead straight (straighten).
A problem of known cyclone separator is, the particle of locating to get into separator chamber at the central shaft (centralaxis) of inlet connecting portion marches to the distance of the wall of separator chamber and is longer than the distance that marches to above-mentioned wall at the position particle that approaches above-mentioned wall of inlet connecting portion.Owing to this reason, some particles that get in central axis do not have the wall of time collision separator chamber, but are not taking place to pass through cyclone separator under the situation of any separation.Centrifugation can improve through the inclination angle that increases blade, in this case, and the wall of most of particle collision separator and separated from air-flow.Yet it is that pressure drop is bigger that the inclination angle of blade increases the problem that causes.
Summary of the invention
Even the objective of the invention is to reduce to eliminate fully some the problems referred to above that exists in the prior art.
An object of the present invention is to provide a kind of scheme that in cyclone separator, strengthens the centrifugation of material to be separated.
Even being the material to be separated that reduces in preventing gas and being included in gas, another object of the present invention passes through cyclone separator in the central axis of cyclone separator.
A purpose more of the present invention is to reduce the pressure drop relevant with the separative efficiency of separator.
For realizing above-mentioned purpose, except further feature, characteristic of the present invention is liked enclosed described in the characteristic of independent claims.
The typical cyclone separator that is used for separating from air-flow material to be separated according to the present invention comprises:
-separator chamber;
-inlet connecting portion is used for gas is input to separator chamber; And
-discharge connecting portion, be used for discharging gas from separator chamber;
Wherein separator chamber, inlet connecting portion and discharge connecting portion have central shaft and wall.
This cyclone separator also comprises:
-sorting hole is used for discharging separated material from separator chamber; And
-at least one guide vane is arranged in inlet connecting portion and/or separator chamber, is used for the wall of air-flow towards cyclone separator led.
Above-mentioned guide vane has:
-the first surface and the longitudinal axis (longitudinal axis) that is arranged essentially parallel to this first surface, and
-base portion, guide vane is set to related with the central shaft of the central shaft of the connecting portion that enters the mouth and/or separator chamber through this base portion, and the first surface and the longitudinal axis are arranged so that radially they stretch out towards the wall of separator chamber and/or the wall of inlet connecting portion thus.
At least a portion of the first surface of guide vane is configured to, and through this guide vane is reversed or adopt similar mode around its longitudinal axis, becomes an inclination angle with respect to the principal direction of air-flow, and this inclination angle is the 1-90 degree, is preferably the 5-70 degree, more preferably the 10-60 degree.
Typically be used in cyclone separator from the method for air-flow separate substance according to of the present invention:
-the gas that will contain material to be separated matter is directed to the separator chamber of this cyclone separator via the inlet connecting portion of cyclone separator; Simultaneously
-through being arranged at least one guide vane in inlet connecting portion and/or the separator chamber, above-mentioned gas being led towards the wall of cyclone separator from the inlet connecting portion of cyclone separator and/or the central shaft of separator chamber, guide vane has:
-the first surface and the longitudinal axis that is arranged essentially parallel to this first surface, and
-base portion, guide vane is set to related with the central shaft of the central shaft of the connecting portion that enters the mouth and/or separator chamber through this base portion, and the first surface and the longitudinal axis are arranged so that radially their walls towards separator chamber stretch out thus.
-the gas that will isolate above-mentioned substance is discharged via discharging connecting portion from the separator chamber of cyclone separator;
-isolated material is discharged via the sorting hole of the separator chamber that is arranged in cyclone separator;
-through this guide vane is reversed or adopts similar mode around its longitudinal axis; At least a portion of the first surface of guide vane is arranged to become an inclination alpha with respect to the principal direction of air-flow; This inclination angle is the 1-90 degree; Be preferably the 5-70 degree, 10-60 degree more preferably, thus the wall of above-mentioned gas towards cyclone separator led.
Although not necessarily always specify, under applicable situation, various embodiment of the present invention and the characteristic described had in this application both related to according to cyclone separator of the present invention, related to again according to of the present invention being used for from the method for air-flow separate substance.
In a preferred embodiment of the invention, air-flow led towards the wall of cyclone separator refer in particular to the wall of separator chamber, but in certain embodiments, air-flow also can be directed to towards the wall of connecting portion.
Cyclone separator comprises at least one guide vane that is arranged in inlet connecting portion and/or separator chamber; This means and can at least one blade is set in inlet connecting portion or the separator chamber or be arranged on simultaneously in inlet connecting portion and the separator chamber; In this case, guide vane extends to separator chamber at least in part from the inlet connecting portion.Also can in inlet connecting portion and/or separator chamber, a plurality of guide vanes be set.Typically, having 2,3,4,5,6,7,8,9,10 guide vanes, more typically is 2-12 guide vane, is preferably 4-10 guide vane.
The central shaft of inlet connecting portion, separator chamber and discharge connecting portion can be imaginary, that is to say that central shaft needn't be real entity structure.Preferably, the central shaft of inlet connecting portion, separator chamber and discharge connecting portion is similar and overlapping, that is, these central shafts are parallel and are positioned on the identical imaginary line.
According to one embodiment of present invention, cyclone separator also comprises at least one straightening vane (straightening vane), and straightening vane is arranged in discharges connecting portion, is used to lead the air-flow of waiting until from the separator chamber discharge.Typically, in discharging connecting portion, 2,3,4,5,6,7,8,9,10 straightening vanes are set.Through (a plurality of) straightening vane is set, can reduces the vortex of gas in the passing away system of separator back of from separator, discharging in discharging connecting portion.
In a preferred embodiment of the invention, straightening vane has:
-the first surface and the longitudinal axis that is arranged essentially parallel to first surface, and
-base portion, straightening vane is set to related with the central shaft of discharging connecting portion through this base portion, and the wall radially be arranged to towards discharging connecting portion of the first surface and the longitudinal axis stretches out thus.
Through straightening vane is reversed or adopts similar mode around its longitudinal axis, at least a portion of the first surface of straightening vane to be arranged to become an inclination angle with respect to the principal direction of air-flow, this inclination angle is the 0-90 degree, is preferably the 5-70 degree, more preferably the 10-60 degree.
Straightening vane also can completely or partially be arranged on that side near the discharge connecting portion of separator chamber.In fact in this application, straightening vane is defined by the blade that is arranged on the center line back (being positioned at that part of back of discharge connecting portion one side of separator chamber) of separator chamber along the principal direction of air-flow.Correspondingly, guide vane is defined by the blade that is arranged on the center line front (being positioned at that part of front of inlet connecting portion one side of separator chamber) of separator chamber along the principal direction of air-flow.
In this application, guide vane or straightening vane also are collectively referred to as blade.Blade is typically formed by planar material, is for example formed by metallic plate (like steel plate) or tabular synthetic material (like glass fibre).Blade comprises first edge that is provided for contacting air-flow and perpendicular to second edge at this first edge.It is related with the central shaft of cyclone separator that blade is provided in its base portion, and the outward flange of blade is relative, related with the outer wall of cyclone separator in other words near the outer wall of cyclone separator with base portion.
Obviously, for the blade and the blade (being guide vane and straightening vane) of discharging connecting portion of inlet connecting portion, the inclination angle of the first surface of these blades needn't be identical.
In this application, material or particle to be separated are meant that for example water droplet reaches impurity, dust, fiber and/or other solid particle that wherein comprises.
The first surface of guide vane and straightening vane is meant the surface that air-flow mainly will collide, and this surperficial main purpose is air-flow is turned to and to lead along direction that above-mentioned surface limited.
Through the wall of air-flow towards cyclone separator led, purpose is to make air-flow in separator chamber, carry out vorticla motion.When gas near wall during vortex, material to be separated just is separated from gas through centrifugal force.
Although the motion of gas is violent, and this strenuous exercise is that (especially in separator chamber) has a mind to cause that the principal direction of air-flow typically refers to the direction that gas is advanced.This direction normally substantially from the direction of inlet connecting portion via separator chamber towards the direction of discharging connecting portion.In most of embodiment of the present invention, the principal direction of air-flow is identical towards the direction of the central shaft of discharging connecting portion from the inlet connecting portion with separator chamber.
According to a preferred embodiment of the present invention, cyclone separator according to the present invention is used as drop separator.Cyclone separator according to the present invention for example is well suited for removes moisture from the gas of processing industry, remove moisture in the waste gas that is particularly suitable for from papermaking and pulp industry, producing.Particularly preferably, can be provided with the green end (wet end) of paper machine relatedly, for example be provided with relatedly with wet end or press section according to cyclone separator of the present invention.Treat to comprise water droplet and moisture, wherein also comprise fiber, filler particles and other impurity from the air that green end is discharged.Can be by scheme according to the present invention at an easy rate with separating in these foreign substances from air.An advantage according to cyclone separator of the present invention is its operating reliability; That is to say; Cyclone separator according to the present invention is unlike the such easy obstruction of traditional membrane separator, and its size is very compact, thereby makes in its processing unit (plant) that is set at other more easily.
That the shape of separator chamber can be similar to is cylindrical, rectangular prism etc.The diameter of separator chamber for example can equal to guide into diameter and/or the diameter of the discharge connecting portion of drawing from this separator chamber of the inlet connecting portion of separator chamber.Preferably, the diameter of separator chamber is greater than the diameter of inlet connecting portion and/or discharge connecting portion.The diameter of separator chamber typically is 0.3-3m, more typically is 0.5-2.5m, typically is very much 0.8-2.2m.
The inlet connecting portion comprises the edge of inlet at least, and the gas admission passage can be set to related with this inlet.Similarly, discharge the edge that connecting portion comprises outlet at least, the gas passing away can export relatedly with this and be provided with, to discharge gas from separator chamber.Except that above-mentioned inlet, inlet also can comprise the wall that is arranged on the inlet front, and outlet can comprise the wall that is arranged on outlet back, and entering the mouth connecting portion and/or discharge connecting portion thus can be separate, and that its shape for example is similar to is cylindrical, rectangular prism etc.Inlet connecting portion and/or discharge connecting portion can be set to be independent of separator chamber, perhaps can form as one with separator chamber.The diameter of inlet connecting portion and/or discharge connecting portion typically is 0.25-2.5m, more typically is 0.4-2m, typically is very much 0.6-1.8m.The diameter of inlet connecting portion needn't be identical dimensionally with the diameter of discharging connecting portion, but the diameter of inlet connecting portion can be greater than the diameter of discharging connecting portion.Compare with the length of discharging connecting portion equally, the length of inlet connecting portion can be of different sizes.
Cyclone separator typically is 0.6-6m along the total length of its central axis direction, more typically is 1.0-5.0m, typically is very much 1.5-4.5m.
Preferably, the blade that is provided with enter the mouth connecting portion and/or separator chamber and/or discharge connecting portion is more than one relatedly, for example 2-15 or 4-10.
According to one embodiment of present invention, the inclination angle of the first surface of blade is configured to variable.This means: in the first of first surface, blade is certain special value with respect to the inclination angle of the principal direction of air-flow, and in the second portion of first surface, the inclination angle of blade is other numerical value, just is different from the numerical value at first inclination angle.In an embodiment of the present invention, the inclination angle of guide vane reduces towards the outward flange of blade from the base portion of blade usually.Simultaneously, the inclination angle of straightening vane increases from blade first edge towards its second edge along the principal direction of air-flow usually.
Blade for example can through reverse, warpage, bending, cast form be configured to have the above-mentioned inclination angle of stating.Preferably, through reversing or the warpage blade makes blade have variable inclination angle, because simple like this and economical.
Can be through for example on first surface, folding a limited number of inclination angle or forming variable inclination angle through making first surface not have any obvious folding line ground smooth change.In an embodiment of the present invention, blade is set to have one or more discontinuous sections, i.e. folding line, and the inclination angle of the first surface of blade changes at the folding line place.
Embodiments of the invention relate to a kind of method that is used for improving in the centrifugation of the particle of the cyclone separator that comprises the separation chamber, by:
-the air-flow that will comprise particle is directed to separator chamber via the inlet connecting portion that is positioned at separator first end;
-make the said flow that contains particle be directed to along at least one guide vane that is arranged in inlet connecting portion and/or the separator chamber, make the other end motion of air-flow thus, and particle is directed to by the outer wall towards cyclone separator towards separator chamber;
-air-flow is derived from separator chamber via the discharge connecting portion that is arranged in the cyclone separator other end; And
Near the central part of cyclone separator, run into the particle of guide vane, and compare, thereby be to be directed to towards the outer wall of cyclone separator with bigger inclination angle to advance at the particle that runs into guide vane apart from the central part of cyclone separator at a distance.Preferably, make air-flow carry out vorticla motion by at least one guide vane towards the separator chamber other end.
According to one embodiment of present invention, the inclination angle of the first surface of guide vane increases along the principal direction (promptly the edge is perpendicular to the direction of the longitudinal axis of blade) of air-flow.This means that at gas gas at first runs into the first of the first surface of blade when its principal direction is moved, this first becomes an inclination angle with respect to the principal direction of air-flow.When gas (mainly being on the direction at the central shaft of separator chamber) on its principal direction when the first surface of blade moves, the inclination angle of first surface little by little increases or staged ground (for example at the folding line place) increases.
According to one embodiment of present invention, the inclination angle of the first surface of straightening vane reduces along the principal direction of air-flow.This typically refers to first surface with respect to directly leading to the inclination angle of the direction of discharging connecting portion from the inlet connecting portion.In this case, the violent air-flow that straightening vane will be discharged from separator chamber is led directly, so that air-flow is parallel to the central shaft of discharging connecting portion and/or the central shaft of separator chamber.
The inclination angle of the first surface of straightening vane also can be preferably zero degree, and in this case, the first surface of blade is parallel to the principal direction of air-flow.The whole surface of blade can be in identical inclination angle, and perhaps this inclination angle can be variable in the following manner: make this inclination angle bigger on for zero degree another part at first surface on the part of first surface.
According to one embodiment of present invention; The first surface of guide vane is set to change in the following manner along the direction (promptly radially going up) that is substantially perpendicular to the principal direction of air-flow at least with respect to the inclination angle of the principal direction of air-flow: the most related place with central shaft, inclination angle is a maximum, and towards the wall of cyclone separator fifty-fifty (on average) reduce.By this characteristic, and when getting into separator chamber, more to have compared near those particles of wall, the particle that gets into separator chamber with central shaft can more effectively be led towards wall relatedly.This means that the same surperficial inclination angle of blade can cover the different piece of the surf zone of blade base place and blade outer edge.For example, the inclination angle of the major part of the base portion of blade is preferably bigger than the outer peripheral inclination angle of blade.The inclination angle of straightening vane also can be set to by identical mode radially change fifty-fifty.
According to one embodiment of present invention; Cyclone separator also comprises first central member; First central member is configured to substantially related with the central shaft of the central shaft of inlet connecting portion and/or separator chamber, with the acentric axle, towards the wall of cyclone separator air-flow is led.Therefore, can hinder or reduce air-flow in the central axis use central member of cyclone separator.The shape of first central member can be set to taper, and its principal direction along air-flow is expanded towards guide vane.The expansion shape of central member makes air-flow leave the central shaft of cyclone separator and is directed to towards the outer wall of separator, and has strengthened the guiding to air-flow thus.Correspondingly, first central member can be arranged in guide vane back for the taper shape that comes to a point, so that optimize flox condition.
According to one embodiment of present invention, cyclone separator also comprises second central member, and this second central member is provided with the central shaft of discharging connecting portion substantially relatedly.One or more straightening vanes may be attached to second central member of this discharge connecting portion, or otherwise are provided with this second central member relatedly.The shape of this central member can be set to come to a point along the principal direction of air-flow.The shape that comes to a point of this central member (for example taper) guiding air-flow turns back to related with central shaft, and makes air-flow on its fluid cross-section, become even thus.
The inlet connecting portion all can have separate central member with the discharge connecting portion.The single-piece that the central member of inlet connecting portion and/or the central member of discharging connecting portion also can form as one with a central member that possibly be arranged in the separator chamber, and/or the single-piece that forms as one each other of the central member of inlet connecting portion and the central member of discharging connecting portion.In this case, the central member of one always extends to discharge connecting portion from the inlet connecting portion via separator chamber along its center line.
According to one embodiment of present invention, central member is related with the central shaft of separator at least cylindrical.Columniform central member can prevent that gas from getting into the central shaft of separator chamber relatedly, and thus gas is driven the wall to separator chamber.Cylindrical centre element for example can be tubulose.
According to one embodiment of present invention, at least some in guide vane and/or the straightening vane are set at its base portion place related with this central member.These blades can be fixed to central member through for example welding.
Advantage of the present invention is the centrifugation that has strengthened to the material that will in cyclone separator, separate.
Even an advantage of the invention is can reduce significantly stop material to be separated that gas and this gas comprised along the central shaft of cyclone separator through this cyclone separator.
Another important advantage of the present invention is to reduce the pressure drop relevant with separative efficiency.
Can be preferred for from air-flow, separating the method for material to be separated according to cyclone separator of the present invention.The scheme that in the content of dependent claims and example shown in the drawings, provides is suitable for said method equally.
Typically, cyclone separator is set to vertically use, thereby the inlet connecting portion is set at discharge connecting portion below.Gas flow to be purified is introduced into this cyclone separator in the bottom of cyclone separator, and purifying gas flow is discharged this cyclone separator from the top of cyclone separator.Obviously, cyclone separator also is suitable for flatly using.
In a preferred embodiment of the invention, separator chamber is provided with at least one sorting hole, and isolated material can be discharged via above-mentioned sorting hole from gas to be clean.Sorting hole can be arranged on appropriate position in the wall of separator chamber.Usually significantly less than the diameter of inlet connecting portion and/or discharge connecting portion, the diameter of sorting hole typically is about 0.07-0.15m to the diameter of sorting hole.If cyclone separator will be installed in vertical position (promptly vertically install), then can be, be that the bottom of separation chamber is provided with drain tank, to should sorting hole being set drain tank in the bottom of separation chamber.In this case, material to be separated accumulates to drain tank along the wall of separator chamber, and discharges via tap from this drain tank.Bottom at horizontally disposed cyclone separator also can be provided with drain tank.
Description of drawings
With reference to accompanying schematic figure the present invention is described in more detail below, in the accompanying drawings
Fig. 1 illustrates the cyclone separator according to known systems;
Fig. 2 illustrates the cyclone separator according to first embodiment of the invention;
Fig. 3 a, Fig. 4 a and Fig. 5 a illustrate cross-sectional figure and the stereogram of guide vane of the tubular inlet connecting portion of cyclone separator;
Fig. 3 b, Fig. 4 b and Fig. 5 b illustrate when when the direction of arrow d is observed; Situation shown in Fig. 3 a, Fig. 4 a and Fig. 5 a;
Fig. 6 a illustrates the variation at the inclination angle of first surface on the principal direction of air-flow of guide vane;
The first surface that Fig. 6 b illustrates guide vane is in the mean change in the radial direction inclination angle;
Fig. 7 a is the stereogram according to the cyclone separator of second embodiment of the invention;
Fig. 7 b illustrates cyclone separator according to an embodiment of the invention, and the discharge connecting portion of this cyclone separator is provided with leads straight guide vane;
Fig. 8 show be arranged on inlet in the connecting portion, with the guide vane shown in Fig. 7 a and Fig. 7 b and central member similarly some guide vanes and a central member; And
The variation at the inclination angle of the schematically illustrated guide vane according to an embodiment of the invention of Fig. 9.
The specific embodiment
Fig. 1 illustrates the cyclone separator 91 according to known prior art, and it comprises air supply channel 95, exhaust passage 96 and be positioned at above-mentioned separator chamber 92 between the two that this separator chamber has the passing away 97 that is used to discharge particle.Arrow 100 expression gas flow directions.The guide vane group 98 of input side is set to related with input hole 93, and these guide vanes are used to make gas to be clean to get into vorticla motion.The vane group 99 of discharge side is set to related with tap 94, and these blades are used to lead the straight air-flow that comes out from separator chamber 92.
Fig. 2 illustrates the cyclone separator 1 according to first embodiment of the invention.The principal direction of arrow 10 expression air-flows in inlet channel 5, separator chamber 2 and passing away 6.Cyclone separator 1 has inlet connecting portion 3, and gas to be clean is input in the separator chamber 2 via inlet connecting portion 3.Guide vane 8a is set to related with the connecting portion 3 that enters the mouth, and in this example, the first surface 12 of this guide vane is set to be approximated to respect to the principal direction 10 of air-flow the inclination alpha of 45 degree.In this example, the direction with the common central shaft of inlet connecting portion 3 and separator chamber 2 is identical basically for the principal direction 10 of air-flow.The purpose that guide vane 8a is set is, at least a portion through will being input to the air-flow in the separator chamber 2 makes this air-flow depart from from its principal direction 10 towards the mode of wall 11 guiding of separator chamber 2.Simultaneously, make air-flow in separator chamber 2, get into vorticla motion.When gas during vortex, makes material to be separated (like water droplet or particle etc.) separated from the gas by centrifugal force near wall 11.This type material is discharged from via sorting hole 7.Gas is also further discharged via passing away 6 through discharging connecting portion 4 from separator chamber 2 subsequently.
Fig. 3 a, Fig. 4 a and Fig. 5 a illustrate the example of tubular inlet connecting portion 3 edges of cyclone separator perpendicular to the cross-sectional figure of the direction of the principal direction of air-flow.In Fig. 3 a, Fig. 4 a and Fig. 5 a, the direction of air-flow is for vertically to pass paper from the observer.Fig. 3 a, Fig. 4 a and Fig. 5 a illustrate the stereogram of guide vane 8a.When Fig. 3 b, Fig. 4 b and Fig. 5 b illustrate from the direction observation of arrow d, the situation of the top of the tubular inlet connecting portion shown in Fig. 3 a, Fig. 4 a and Fig. 5 a.The purpose of these examples is to explain the implication of the first surface of guide vane 8a in this application with respect to the inclination angle of the principal direction 10 of air-flow.In this example, blade 8a is tabular uniformly and is straight that blade 8a is attached to the central member 15a that is provided with central shaft at its base portion 9 places relatedly.Not shown central member in Fig. 3 b, Fig. 4 b and Fig. 5 b.The longitudinal axis 18 of blade 8a is set to be parallel to the radius of connecting portion 3 of entering the mouth, that is to say, this longitudinal axis 18 from central member 15a vertically towards the wall of inlet connecting portion 3.In Fig. 3 a and Fig. 3 b, the first surface 12 of blade 8a is set to the inclination angle with respect to 10 one-tenth 90 degree of principal direction of air-flow, and promptly in Fig. 3 a, first surface 12 is parallel to paper.In Fig. 4 a and Fig. 4 b, blade 8a reverses 45 degree from the position of Fig. 3 a and Fig. 3 b around its longitudinal axis 18, and in this case, first surface 12 is 45 degree with respect to the inclination alpha of the principal direction 10 of air-flow.In Fig. 5 a and Fig. 5 b, blade 8a turns round around its longitudinal axis 18 from the position of Fig. 3 a and Fig. 3 b and turn 90 degrees, and in this case, first surface 12 is a zero degree with respect to the inclination alpha of the principal direction 10 of air-flow, and promptly first surface 12 is parallel to the direction of air-flow.
Fig. 6 a is illustrated in the implication that the inclination angle on the principal direction 10 of air-flow changes, and is attached to the first surface 12a of the guide vane of central member 15, the implication that the inclination angle of 12b on the principal direction 10 of air-flow increases in this particular case.When gas moves on its principal direction 10, at first run into the 12a of first of the first surface of blade, this first is with respect to 10 one-tenth a certain inclination angles of principal direction (for example 10 degree) of air-flow.The 12a of first along the first surface of blade on its principal direction 10 moves along with gas, the inclination angle of first surface at folding line 19 places, especially sentence following manner and increase at a 19a: make second portion 12b with respect to the inclination angle of the principal direction 10 of air-flow greater than the inclination angle of the 12a of first with respect to the principal direction 10 of air-flow.The inclination angle of second portion 12b for example can be 40 degree.
Fig. 6 b illustrates the first surface 12a, 12b of the guide vane implication along the mean change at the inclination angle of the direction (radially promptly) that is substantially perpendicular to the principal direction of air-flow.In this example, the 12a of first with respect to the inclination angle of the principal direction 10 of air-flow less than the inclination angle of second portion 12b with respect to the principal direction 10 of air-flow.Most of 12b ' of the base portion of blade is with respect to the inclination angle of 10 one-tenth bigger of the principal directions of air-flow, and sub-fraction 12a ' 10 one-tenth less inclination angles of principal direction with respect to air-flow are only arranged.Observe along the direction of the longitudinal axis 18 of the blade radial direction of cyclone separator (promptly along); Outer peripheral most of 12a of blade " with respect to 10 one-tenth less inclination angles of principal direction of air-flow, and only has sub-fraction 12b " with respect to the inclination angle of 10 one-tenth bigger of the principal directions of air-flow.In this application, this characteristic is described through following explanation: the inclination angle of first surface 12a, 12b average with central shaft 13 related ground maximums, and on average towards the wall of cyclone separator that is radially the y direction of blade (promptly along) reduces.
Fig. 7 a is the stereogram according to the cyclone separator 1 of second embodiment of the invention.The inlet connecting portion 3 of cyclone separator 1 is provided with guide vane 8a.Being shaped as of central member 15 is cylindrical.Central member 15 is provided with the central shaft of separator chamber 2 relatedly, and extends to discharge connecting portion 4 from inlet connecting portion 3 substantially.Central member 15 stops air-flows to get into the central shaft of separator chamber 2 relatedly, and forces air-flow more near the wall 11 of separator chamber 2 thus.Guide vane 8a is attached to central member 15a through its base portion 9.Blade 18a is substantially perpendicularly stretched out towards the wall 11 of cyclone separator by the direction of the direction of attached position and central member 15a and central shaft from its base portion.It is variable that the inclination angle of the first surface 12 of blade 8a is configured to as follows: make this inclination angle increase along the principal direction 10 of air-flow (in other words along blade laterally).The first surface 12 of blade 8a has two folding lines 19,20, and these two folding lines 19,20 are divided into three part 12a, 12b, 12c with first surface.Folding line also can be different numbers, for example is 1,3,4,5 or more.The variation at the inclination angle of first surface also can be set to continuous at least in part, has no tangible folding line.In this example, the 12a of first is very little with respect to the inclination angle of principal direction 10, is about 5 degree.The inclination angle of second portion 12b is about 25 degree, and the inclination angle of third part 12c is about 45 degree.With inlet connecting portion 3 relatedly, central member 15a is taper and is configured to this central member 15a and becomes more and more wideer along the principal direction 10 of air-flow.This conical by its shape steering current acentric axle and flow to the wall 11 of cyclone separator.The arrow 30 that marks by dotted line show guide vane 8a how with air-flow towards wall 11 guiding.Being positioned at the central member 15b that discharges connecting portion 4 places is taper; And this central member 15b comes to a point along the principal direction 10 of air-flow; It is related with the central shaft of discharging connecting portion 4 14 that this helps steering current to get back to, thereby and help air-flow on its fluid cross-section, to become even.
Fig. 7 b illustrates cyclone separator according to an embodiment of the invention, and the discharge connecting portion of this cyclone separator is provided with straightening vane 8b.The purpose of these blades is that the violent air-flow of discharging from separator chamber 2 is led directly.
Fig. 8 illustrate wall from the inlet connecting portion along the direction that is parallel to radius when central member 15,15a and central shaft are looked, with the blade and more similar blades of central member and the central member that are arranged among Fig. 7 a and Fig. 7 b in the inlet connecting portion.In Fig. 8, it is variable that the inclination angle of guide vane is configured to along the direction different with Fig. 7 b with Fig. 7 a.Blade steering current among Fig. 8 flows counterclockwise, and the guide vane steering current among Fig. 7 a and Fig. 7 b flows clockwise.
The inclination angle of the guide vane in the schematically illustrated one embodiment of the invention of Fig. 9 changes.Guide vane 12 is attached to central member 15, folding line 12 ' be arranged on this blade along dotted line.Folding line 12 ' the part 12b of the blade 12 that is arranged in central member 15 those sides, the first surface of blade is 50 degree with respect to the inclination angle of the principal direction 10 of air-flow.When particle A ran into the first surface of blade near central member 15, particle A was directed in the part of the inclination angle of blade 12 average out to 50 degree for the whole length of this blade along the first surface of blade 12.When particle B ran into the first surface of blade at the middle part of blade, the particle B at first inclination angle through blade was that the part of 40 degree is directed to the folding line in the blade, and the inclination angle of particle B through blade is that the surface of 50 degree is directed to afterwards.Therefore, the inclination angle that is used for particle B is led is on average less than the inclination angle that is used for particle A is led.When running into the first surface of blade near the outward flange of particle C at blade, particle C is directed in the part of blade tilt as far as whole length average out to 40 degree of blade 12 along the first surface of blade 12.Therefore, the inclination angle that is used for particle C is led of the first surface of blade is fifty-fifty less than the inclination angle that is used for particle A and particle B are led.In this way, and when getting into separator chamber, more compared near the particle of wall, the particle that gets into separator chamber with central shaft can more effectively be led towards wall relatedly therefrom.Certainly, the inclination angle among Fig. 9 is that the mode with example provides, and changes in can be in claims given scope in these inclination angles.
The present invention is not limited to the above embodiment that describes through example, but should in the protection domain that appended claims limited, broadly be explained.

Claims (22)

1. a cyclone separator (1) is used for separating material from air-flow, and said cyclone separator comprises:
Separator chamber (2);
Inlet connecting portion (3) is used for gas is input to said separator chamber (2); And
Discharge connecting portion (4), be used for discharging gas from said separator chamber (2);
Said separator chamber, said inlet connecting portion and said discharge connecting portion have central shaft and wall; And
Sorting hole (7) is used for discharging separated material from said separator chamber (2); And
At least one guide vane (8a) is arranged in said inlet connecting portion (3) and/or said separator chamber (2), is used to make said air-flow to be directed to towards the wall (11) of said cyclone separator, and said guide vane has:
First surface (12) and be arranged essentially parallel to the longitudinal axis of said first surface; And
Base portion; The base portion of said guide vane through said guide vane is set to related with the central shaft of the central shaft of said inlet connecting portion and/or said separator chamber, and the said thus first surface and the said longitudinal axis are arranged so that radially they stretch out towards the wall of said separator chamber and/or the wall of said inlet connecting portion;
It is characterized in that; Through said guide vane is reversed around its longitudinal axis; The principal direction (10) that at least a portion of the first surface of said guide vane is arranged to respect to said air-flow becomes an inclination angle (α); Said inclination angle (α) is the 1-90 degree; Said thus first surface is set at least along the direction that is substantially perpendicular to the principal direction (10) of said air-flow with respect to the inclination angle (α) of the principal direction (10) of said air-flow, promptly radially is variable in the following manner: said inclination angle (α) ground related maximum with said central shaft (13), and reduce fifty-fifty towards the wall (11) of said cyclone separator.
2. cyclone separator according to claim 1 (1) is characterized in that, the inclination angle of the first surface of said guide vane (α) is the 5-70 degree.
3. cyclone separator according to claim 1 (1) is characterized in that, the inclination angle of the first surface of said guide vane (α) is the 10-60 degree.
4. cyclone separator according to claim 1 (1); It is characterized in that said cyclone separator (1) also comprises: at least one straightening vane (8b) is arranged in said discharge connecting portion (4); Be used to lead the air-flow of directly discharging from said separator chamber (2), said straightening vane has:
First surface (12) and be arranged essentially parallel to the longitudinal axis of the first surface of said straightening vane; And
Base portion; The base portion of said straightening vane through said straightening vane is set to related with the central shaft of said discharge connecting portion, and the longitudinal axis of the first surface of said straightening vane and said straightening vane is arranged so that radially their walls towards said discharge connecting portion stretch out thus; And
Through said straightening vane is reversed around its longitudinal axis, at least a portion of the first surface of said straightening vane is arranged to the inclination angle (α) that principal direction (10) with respect to said air-flow becomes the 0-90 degree.
5. cyclone separator according to claim 1 (1); It is characterized in that said cyclone separator (1) also comprises: at least one straightening vane (8b) is arranged in said discharge connecting portion (4); Be used to lead the air-flow of directly discharging from said separator chamber (2), said straightening vane has:
First surface (12) and be arranged essentially parallel to the longitudinal axis of the first surface of said straightening vane; And
Base portion; The base portion of said straightening vane through said straightening vane is set to related with the central shaft of said discharge connecting portion, and the longitudinal axis of the first surface of said straightening vane and said straightening vane is arranged so that radially their walls towards said discharge connecting portion stretch out thus; And
Through said straightening vane is reversed around its longitudinal axis, at least a portion of the first surface of said straightening vane is arranged to the inclination angle (α) that principal direction (10) with respect to said air-flow becomes the 5-70 degree.
6. cyclone separator according to claim 1 (1); It is characterized in that said cyclone separator (1) also comprises: at least one straightening vane (8b) is arranged in said discharge connecting portion (4); Be used to lead the air-flow of directly discharging from said separator chamber (2), said straightening vane has:
First surface (12) and be arranged essentially parallel to the longitudinal axis of the first surface of said straightening vane; And
Base portion; The base portion of said straightening vane through said straightening vane is set to related with the central shaft of said discharge connecting portion, and the longitudinal axis of the first surface of said straightening vane and said straightening vane is arranged so that radially their walls towards said discharge connecting portion stretch out thus; And
Through said straightening vane is reversed around its longitudinal axis, at least a portion of the first surface of said straightening vane is arranged to the inclination angle (α) that principal direction (10) with respect to said air-flow becomes the 10-60 degree.
7. according to each described cyclone separator (1) among the claim 4-6, it is characterized in that the inclination angle of the first surface of said guide vane (α) is configured to is variable.
8. according to each described cyclone separator (1) among the claim 1-6, it is characterized in that the inclination angle (α) of the first surface of said guide vane (8a) increases along the principal direction (10) of said air-flow.
9. according to each described cyclone separator (1) among the claim 4-6, it is characterized in that the inclination angle (α) of the first surface of said straightening vane (8b) reduces along the principal direction (10) of said air-flow.
10. cyclone separator according to claim 1 (1) is characterized in that, the inclination angle of the major part of the first surface of the base portion of said guide vane is bigger at the outer peripheral inclination angle of said guide vane than the first surface of said guide vane.
11. according to each described cyclone separator (1) in claim 1-6 and 10; It is characterized in that; Said cyclone separator (1) also comprises: first central member (15a); It is provided with the central shaft (13) of said inlet connecting portion (3) and/or the central shaft of said separator chamber (2) substantially relatedly, to leave said central shaft, towards the wall (11) of said cyclone separator said air-flow to be led.
12. according to each described cyclone separator (1) in claim 1-6 and 10, it is characterized in that said cyclone separator (1) also comprises: second central member (15b), it is provided with the central shaft of said discharge connecting portion (4) substantially relatedly.
13. cyclone separator according to claim 11 (1) is characterized in that, said cyclone separator (1) also comprises: second central member (15b), it is provided with the central shaft of said discharge connecting portion (4) substantially relatedly.
14. cyclone separator according to claim 13 (1) is characterized in that, said first central member (15a) and said second central member (15b) are related with the central shaft (13) of said separator chamber (2) at least cylindrical.
15., it is characterized in that said cyclone separator (1) also comprises first central member (15a) and second central member (15b) according to the described cyclone separator of claim 4-6 (1); Said first central member (15a) is provided with the central shaft (13) of said inlet connecting portion (3) and/or the central shaft of said separator chamber (2) substantially relatedly, to leave said central shaft, towards the wall (11) of said cyclone separator said air-flow to be led; Said second central member (15b) is provided with the central shaft of said discharge connecting portion (4) substantially relatedly; And in the said guide vane (8a) at least some are set at the base portion (9) of said guide vane (8a) relatedly with said first central member (15a), and/or in the said straightening vane (8b) at least some are set at the base portion of said straightening vane (8b) related with said second central member (15b).
16. a method that is used in cyclone separator separate substance from air-flow, by:
The gas that will contain material to be separated matter is directed to the separator chamber of said cyclone separator via the inlet connecting portion of said cyclone separator; And simultaneously
Through being arranged at least one guide vane in said inlet connecting portion and/or the said separator chamber; Said gas is directed to towards the wall of said cyclone separator from the inlet connecting portion (3) of said cyclone separator and/or the central shaft of said separator chamber (2), and said guide vane has:
First surface (12) and be arranged essentially parallel to the longitudinal axis of said first surface; And
Base portion, said guide vane is set to related with the central shaft of said inlet connecting portion and/or said separator chamber through said base portion, and the said thus first surface and the said longitudinal axis are arranged so that radially their walls towards said separator chamber stretch out;
The gas of isolating said material is discharged via discharging connecting portion from the separator chamber of said cyclone separator;
Isolated material is discharged via the sorting hole (7) of the separator chamber that is arranged in said cyclone separator;
It is characterized in that:
Through said guide vane is reversed around its longitudinal axis; At least a portion of the first surface of said guide vane is arranged to become an inclination angle (α) with respect to the principal direction of said air-flow; Said gas is directed to towards the wall of said cyclone separator; Said inclination angle (α) is the 1-90 degree; And said first surface is set at least along the direction that is substantially perpendicular to the principal direction (10) of said air-flow with respect to the inclination angle (α) of the principal direction (10) of said air-flow, promptly radially is variable in the following manner: said inclination angle (α) ground related maximum with said central shaft (13), and reduce fifty-fifty towards the wall (11) of said cyclone separator.
17. method according to claim 16 is characterized in that, said inclination angle (α) is the 5-70 degree.
18. method according to claim 16 is characterized in that, said inclination angle (α) is the 10-60 degree.
19. according to each described method among the claim 16-18, it is characterized in that, use central member to hinder or reduce said air-flow in the central axis of said cyclone separator.
20. a method that is used in the centrifugation of the cyclone separator enhanced granule that comprises separator chamber, by:
The air-flow that will contain particle is directed to said separator chamber via the inlet connecting portion of first end that is positioned at said separator chamber;
The said air-flow that contains particle is directed to along at least one guide vane that is arranged in said inlet connecting portion and/or the said separator chamber; Make of the other end motion of said air-flow thus, and said particle is directed to towards the outer wall of said cyclone separator towards said separator chamber;
Steering current is discharged via the discharge connecting portion of the other end that is positioned at said cyclone separator from said separator chamber;
It is characterized in that; Through said guide vane is reversed around its longitudinal axis; The principal direction (10) that at least a portion of the first surface of said guide vane is arranged to respect to said air-flow becomes an inclination angle (α); Said air-flow is directed to towards the wall of said cyclone separator, and said inclination angle (α) is the 1-90 degree, and said thus first surface is set at least along the direction that is substantially perpendicular to the principal direction (10) of said air-flow with respect to the inclination angle (α) of the principal direction (10) of said air-flow; Promptly radially be variable in the following manner: said inclination angle (α) related ground with central shaft (13) is maximum, and reduces fifty-fifty towards the wall (11) of said cyclone separator.
21. method according to claim 20 is characterized in that, said inclination angle (α) is the 5-70 degree.
22. method according to claim 20 is characterized in that, said inclination angle (α) is the 10-60 degree.
CN2008800197084A 2007-06-11 2008-06-11 Cyclone separator and method for separating matter from a gas flow Active CN101678369B (en)

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KR20130110690A (en) * 2012-03-30 2013-10-10 손동원 Axial flow type cyclone dust collector
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CN109924924B (en) * 2018-05-24 2021-12-28 尚科宁家(香港)股份有限公司 Hand-held type cleaning device

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FR2681259A1 (en) * 1991-09-13 1993-03-19 Bertin & Cie Cyclone cell having an axial inlet and direct passage, and fluid purification apparatus using this cell

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ES2487506T3 (en) 2014-08-21
EP2167236B1 (en) 2014-05-14

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