EP1681090B1 - Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal - Google Patents
Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal Download PDFInfo
- Publication number
- EP1681090B1 EP1681090B1 EP05000811A EP05000811A EP1681090B1 EP 1681090 B1 EP1681090 B1 EP 1681090B1 EP 05000811 A EP05000811 A EP 05000811A EP 05000811 A EP05000811 A EP 05000811A EP 1681090 B1 EP1681090 B1 EP 1681090B1
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- European Patent Office
- Prior art keywords
- mixer
- mixing device
- row
- flow direction
- main flow
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- 238000002156 mixing Methods 0.000 title claims abstract description 89
- 239000012530 fluid Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/02—Baths
- A47K3/022—Baths specially adapted for particular use, e.g. for washing the feet, for bathing in sitting position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
- B01F25/31322—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices used simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
- B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431973—Mounted on a support member extending transversally through the mixing tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/93—Arrangements, nature or configuration of flow guiding elements
- B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
Definitions
- the invention relates to a mixing device, comprising a flow channel and a plurality of mixer disks, which generate fluid in a leading edge vortex, which flows through the flow channel in a main flow direction.
- the mixer disks are arranged in rows of mixer disks along row axes extending essentially transversely to the main flow direction, and the mixer disks of the respective mixer disk row are angled in the same direction with respect to the main flow direction of the fluid.
- the invention relates to a mixing method for mixing a fluid flowing in a main flow direction through a flow channel, in which the flow of the fluid is mixed by a leading edge vortex system.
- Such mixing devices and mixing methods are used in industrial plants, power plants, chemical plants, roasting plants and similar plants in order to mix or mix the fluid streams occurring there.
- mixing of the flue gases must be carried out in order to achieve uniform utilization and effective operation of the cleaning systems.
- a mixing device developed in this context by the Applicant and disclosed in DE 4325968 A1 is the so-called static mixer in which thin mixer disks can be arranged freely circulating in a flow channel.
- the mixer discs are inclined in an acute, also referred to as angle of attack, angle to the flow.
- angle of attack angle to the flow.
- On the back side facing away from the flow of these mixer disks then creates a particularly stable leading edge vortex system. It consists essentially of two oppositely directed from the freely flowing around the front and side edges inwardly rotating and in the main flow direction conically widening vertebrae.
- transverse mixers which, based on the principle of action of the static mixer, the temperature distribution, the chemical composition in the flue gases and also the dust distribution, e.g. equalize the fly ash.
- a plurality of vortex induction disks are arranged along a row axis in a mixer disk row. The row axis of this mixer disk row runs essentially transversely to the main flow direction.
- mixers For further homogenization of the flow, mixers have already been proposed by the applicant in EP 1170054 A1, in which a plurality of such mixer disk rows are arranged one behind the other in the flow direction.
- the second row has a minimum distance from the first row of mixer discs, which aligns with the vortex formation of the first row. So far, the second row of mixer disks has been arranged behind the first row in such a way that the mixing vortices of the second series of mixer disks supplement and amplify the vortices of the first mixer disk row.
- first fluid are mixed behind the or the transverse mixer Admixing device installed.
- This admixing device conveys the material to be mixed, referred to below as secondary fluid, directly into the vortex system that captures the material and mixes it intensively with the main stream.
- the material to be mixed may be gaseous, mist-like (aerosol) or a pulverized solid.
- the known admixing devices can be narrow injection gratings with numerous nozzles, with which the additives are finely distributed to the primary fluid. These nozzle grilles are installed in front of any mixers at a minimum distance. The minimum distance is chosen so large that the injected secondary fluid in the hot primary fluid evaporates as completely as possible until it hits the mixer, otherwise corrosion and erosion phenomena occur on the mixers.
- the invention is therefore based on the object to provide a mixing device and a mixing method, having a further optimized efficiency.
- a mixer according to claim 1 characterized in that the mixer disk rows are arranged in a common flow channel section whose length corresponds to the maximum length of the largest mixer disk row in the main flow direction and the mixer disk rows are arranged side by side based on the main flow direction, the mixer disks adjacent Mixer disk rows are angled alternately in a positive and a negative angle of attack relative to the main flow direction, and in a mixing method according to claim 29, characterized in that at least two counter-aligned front edge vortex systems are generated by such a mixer in a common flow channel section.
- These mixer disks produce in a fluid flowing through the flow channel in a main flow direction the leading edge vortices described above and are arranged along row axes in rows of mixer disks, the mixer disk rows extending essentially transversely to the main flow direction.
- the mixer disks of the respective mixer disk row are in turn arranged in the same direction with respect to the main flow direction of the fluid. They thus extend substantially in the same direction, but they need not necessarily be aligned parallel to each other, but may have slight deviations or differences in their angles of attack.
- these mixer disk rows are arranged next to one another in a common flow channel section.
- the mixer disk rows are therefore not mounted as usual in the main flow direction one behind the other in a minimum distance, but contrary to all common arrangement rules in one and the same flow channel section.
- the mixer disk rows thus extend, in particular, over a section length of the flow channel extending in the main flow direction, which results from the maximum length expansion of the largest mixer disk row.
- the other adjacent rows of mixer disks then extend either over the same or a smaller length and lie at least substantially within this flow channel section defined by the longest row of mixer disks.
- the maximum longitudinal extent is to be understood as the length which, in the main flow direction, consists of the foremost edge of the foremost part and the rearmost edge of the rearmost part of the mixing device results.
- the leading edge is thus usually the leading edge of the frontmost mixer disc and the rearmost edge usually referred to as the trailing edge trailing edge of the last mixer disc.
- the mixer disks of adjacent mixer disk rows are angled alternately in a positive and in a negative angle of attack relative to the main flow direction.
- This arrangement of the mixer disk rows divides the flow alternately into a, with respect to the main flow direction, in a positive and negative direction deflected flow component.
- the mixer discs create not only a vortexed crossflow through the leading edge vortex systems on their backs but also the simultaneous deflection of the flow at their front sides, also a rotating global flow transverse to the main flow direction.
- the entire fluid flow is rotated over the entire cross sectional width of the channel in rotation about the channel longitudinal axis , So there is a global spin in the flow, which allows a particularly effective mixing of the fluid.
- the invention has the advantage that even temperature strands and temperature imbalances are mixed.
- the mixing of the fluid is due to this special staggering or stratification of the flow much more efficient than in the rear single chain of the known transverse mixers. It has been found that the interpenetrating leading edge vortex systems of the mixing device according to the invention do not interfere in a negative way. In addition, the mixing device according to the invention requires very little space, since the individual mixer disk rows are not arranged one behind the other in a minimum distance from each other to ensure the specific efficiencies of the individual mixer disk rows. Because of the often tight space, especially in the mostly very heavily installed large systems, this compact design of the mixing device according to the invention is a further advantage.
- the mixer disk rows are arranged one above the other.
- the mixer disk rows thus continue to run side by side, but are aligned rotated by 90 ° and in other words extend both in the horizontal direction.
- the series axes of adjacent mixer disk rows extend in spaced-apart planes extending essentially parallel to the main flow direction. Then, the series axes are so arranged that they do not intersect, but cross in the plan view to each other.
- orientation angles is meant the angle meant between the series axis and the main flow direction.
- the main flow direction results in a known manner essentially from the course of the channel walls before, in and behind the mixing device. It is usually in the longitudinally extending centroid of the channel cross-section.
- the series axes are each arranged in spaced-apart planes which extend substantially parallel to the main flow direction. They expediently pass through the centers of gravity of the individual mixer disks. Alternatively, however, a row axis can also connect the forwardmost point of the respective mixer disk row in the flow direction or other points suitable for the uniform alignment of a plurality of different mixer disks. For example, different lengths of mixer discs can all be aligned at their leading edges, then the row axis passes through the respective leading edges.
- the series axes are arranged inclined in their planes with respect to the main flow direction at an orientation angle of 75 ° to 90 ° and / or from -75 ° to -90 °.
- both series axes can have a negative or positive orientation angle or alternatively a positive and a negative angle.
- the series axes run parallel to each other. This results in a particularly uniform flow course, in particular downstream of the mixer disk rows.
- the mixer disk rows are arranged symmetrically to each other. This may be point or axis symmetry with respect to the flow channel center of gravity or the main flow direction.
- At least one row of mixer disks has a curved row axis.
- the curved row axis may have a constant radius of curvature in the case of a circular arc portion. It can also be expedient to have a variable curvature profile, which is parabolic in particular. In such a course of curvature, a part of the mixer disk row axis runs almost parallel to the main flow direction, while the majority extends transversely to the main flow direction.
- the angle of attack of the mixer discs are selected to be larger with decreasing curvature of the row axis.
- the mixing device preferably has a first row axis with a first curvature profile and a second row axis with a curvature profile, the second curvature profile corresponding to the mirroring of the first curvature profile.
- the curvature course is mirrored on the gravity axis of the flow channel.
- the mixer disk rows preferably each have the same number of mixer disks. It is also advantageous if all mixer disks of a mixer disk series have the same shape. So you can produce the mixer disks in mass production low. Also, the alignment of the mixer discs on site is very easy, since the same mixer discs can be aligned and mounted the same.
- the mixer disks of a mixer disk row are arranged partially overlapping with respect to the main flow direction.
- the mixer disks of such an overlapping row of mixer disks then overlap.
- the rear mixer disk thus stands in the flow shadow of the mixer disk arranged in front of it.
- the overlap of the individual mixer disks varies in a mixer disk row. It is expedient here if the overlap of the individual mixer disks increases with less curvature or inclination of the row axis relative to the main flow direction.
- At least one mixer disk has a triangular shape.
- a triangular shape is understood to mean, above all, a thin disk with a triangular base.
- at least one mixer disk can have a roundish, in particular a circular, elliptical or oval shape.
- a mixing device according to the invention has at least one mixer disk which has a trapezoidal shape. Then the narrower side is the side of the mixer disk facing the flow. The leading edge vortex generating leading edge is then an angular "U” with flared legs, while it is a "V” in a triangular disk and a circular arc portion in a disk.
- At least one mixer disk has at least one bend in its surfaces which have been flown on.
- This kink should not be too pronounced, so that even with kink still a relatively flat surface of the mixer disk is maintained.
- the surface is then suitably kinked in the flow direction to the rear. The pointed side of the bend is thus facing the flow. Also, in this sense, several kinks can bend the surface in the direction of flow.
- an admixing device with at least one outlet opening for a secondary fluid is arranged in the same flow section of the flow channel in which the mixer disk rows extend. Unlike in the prior art so far, therefore, a combination of several transverse mixers is made with a Zumischvorraumen in the same channel section. It has been shown that the flow resistance of the mixing device according to the invention is less than the sum of the individual flow resistance of the respective mixer rows and the admixing device. To further reduce the flow resistance, the admixing device can also be used for fastening the mixer discs.
- At least one outlet pipe is arranged between two adjacent rows of mixer disks in which the at least one outlet opening is located.
- the secondary fluid flows through this outlet tube and is injected into the primary fluid via the at least one outlet opening.
- the outlet pipe of the admixing device should be exactly adapted to the geometry of the mixer disk row and expediently run as parallel as possible to the row axes in the region of the front edges of the mixer disks.
- this development has the advantage that the secondary fluid mixed into the primary fluid is distributed particularly finely and evenly downstream through the leading edge vortices of the individual mixer disks.
- this arrangement eliminates the problems of corrosion and erosion described in the introduction, in particular when the injection takes place on the leeward side of the mixer disks.
- each mixer disk is assigned at least one outlet opening of the admixing device. This means that at least one outlet opening of the admixing device in the area of each individual Mixer disk and there is arranged as far forward in the area of the leading edge. This results in a particularly fine distribution of the secondary fluid in the flow of the first fluid.
- each mixer disk is assigned its own outlet pipe of the admixing device. Then, each mixer disk can be fastened in the flow channel in a particularly simple manner. For this purpose, the mixer disk is screwed to the respective outlet pipe, welded or fastened in another suitable manner.
- the mixing method according to the invention is characterized in that at least two oppositely directed front edge vortex systems are generated in a common flow channel section.
- the leading edge vortex systems which in each case consist of pairs of opposing and inwardly twisting leading edge vertebrae, are thus aligned alternately, once in the positive and in the negative angle, to the main flow direction.
- a global flow rotating in the main flow direction is generated in the same flow channel section in which the leading edge vortex systems are generated, together with the two opposing leading edge vortex systems.
- a further increased mixing of the fluid flows results.
- at least one additional secondary fluid is added to the first fluid in the generation of the opposing leading edge vortex systems.
- the mixing of the fluid thus takes place simultaneously with the admixing of the secondary fluid. This leads, as already explained above in connection with the mixing device, to a further increase in the efficiency of the mixing process according to the invention.
- the first embodiment of the mixing device 1 according to the invention shown in FIGS. 1, 2, 3 and 4 is arranged in a rectangular flow channel 2 and has eight mixer disks 3 with a triangular base surface.
- the flow channel 2 is flowed through by a fluid P in the main flow direction 4.
- the main flow direction runs in the direction of the channel longitudinal axis in the x direction and transversely thereto, the channel width in the direction of the y-axis and the channel height in the z-direction.
- the mixer disks 3 are angled relative to the main flow direction 4 at an angle ⁇ ⁇ .
- they produce leading edge vortices 5, which spread out in a cone shape widening transversely to the main flow direction 4 downstream.
- the leading edge vertebrae 5 behind each mixer plate 3 form a leading edge eddy system 14, which is two eddies 5 rotating counter to the center of the mixer plates 3, which are very stable and strong.
- the mixer disks 3 are arranged one above the other along two rows of axles 6, 7 in mixer disk rows 8, 9.
- the mixer disk rows 8, 9 are thus located in a common flow channel section 10, wherein both mixer disk rows 8, 9 are the same length.
- the mixer disks 3 of the mixer disk row 8 located below the mixer disk row 9 are angled in a positive angle ⁇ relative to the main flow direction 4.
- the positive angle ⁇ is meant a positive angle in the mathematical sense, ie an angle rotating counter-clockwise.
- the mixer disks 3 of the mixer disk row 9 lying above are accordingly arranged at a negative angle ⁇ with respect to the main flow direction 4.
- the row axes 6, 7 of the adjacent mixer disk rows 8, 9 again run parallel to one another and transversely to the main flow direction 4. Therefore, in FIG. 4, the row axis 6 of the lower mixer disk row 8 is covered by the row axis 7 of the upper mixer disk row 9.
- the orientation angle ⁇ of the two series axes 6, 7 is exactly 90 °.
- the series axes 6, 7 therefore lie in two planes spanned in the x and y directions with different z coordinates which extend parallel to the main flow direction 4, the series axes 6, 7 extending only in the y direction, ie both the same x Have coordinate.
- the mixer disks 3 are each attached in a rotationally fixed manner to a mounting tube 11 in such a way that they overlap with respect to the main flow direction 4. As can be seen in FIG. 2, the mixer disks 3 all have the same shape and each overlap in the y-direction by an equal dimension y .
- the overlaps ü y in the lower mixer disk row 8 are the same size as the overlaps in the mixer disk row 9.
- Leading edge vortex systems 14 are simultaneously formed on the leeward side of the mixer disks 3 remote from the flow. These leading edge vortex systems 14 are located behind each mixer disk 3. They are not shown behind each mixer disk 3 in FIGS. 1 to 9 merely for reasons of clarity.
- the leading edge vortex systems 14 of the lower mixer disk row 8, in the drawing to the left and the upper mixer disk row 9 each extend to the right.
- the lower leading edge vortex systems 14 extend in the negative y direction
- the upper leading edge vortex systems 14 of the mixer disc row 9 extend in the positive y direction.
- the mixer disks 3 thus deflect the flow with their front side facing the flow and at the same time generate swirls on their side facing away from the flow. So they have a deflecting and vortex generating effect.
- FIGS. 5, 6, 7 and 8 show a second exemplary embodiment of the mixing device 1 according to the invention. This differs mainly in the orientation of the mixer disk rows 8, 9 of the first embodiment.
- the mixer disk axes 6, 7 run alternately in a positive or negative orientation angle ⁇ , so that in the plan view of FIG. 8, a crossing arrangement of the mixer disk rows 8, 9 results.
- the two mixer disk rows 8, 9 are arranged symmetrically to the channel longitudinal axis, so that the row axes 6, 7 intersect in the middle of the channel.
- the angles ⁇ are in the present case about 80 °.
- the fastening tubes 11 of the mixer disks 3 form the admixing device 29 for the secondary fluid S.
- the fastening pipes 11 are traversed by the secondary fluid S.
- the channel-side ends of the fastening tubes 11 thus form the outlet openings 30 of the admixing device 29.
- the fastening tubes 11 are also the outlet tubes 31 of the admixing device 29.
- This admixing device 29 thus has as many outlet tubes 31 and outlet apertures 30 as mixer discs 3.
- the mounting tubes 11 thus serve both the attachment of the individual mixer discs 3 in Flow channel 2 as well as the guidance and admixture of a secondary fluid S in the flow of the first fluid P.
- the row axes 6, 7 are parabolically curved.
- the upper row axis 7 has its more curved portion on the left side of the flow channel 2 and the lower row axis 6 has its more curved portion on the right side of the flow channel 2.
- the mixer disks 3 are arranged along each row axis 6, 7 such that the angle of attack ⁇ increases from the more curved portion to the less curved portion of a row axis 6, 7.
- the distance between the individual mixer disks in each mixer disk row 6, 7 is selected so that the overlap Ü y decreases with increasing curvature of the row axis 6, 7.
- the mixer disks 3 are arranged along the row axes 6, 7 symmetrical to the main flow direction 4, which runs in the channel center in the x direction in this embodiment.
- the superimposed row axes 6, 7 thus intersect in the plan view of FIG. 9 in the middle of the flow channel 2.
- FIGS. 10 to 17 Various embodiments of mixer disks 3 are shown in FIGS. 10 to 17.
- the mixer disk 3 shown in FIG. 10 is a disk with a circular base area.
- the disk shown in Fig. 11 has an elliptical base.
- the disk shown in FIG. 12 is likewise a roundish mixer disk, which, however, has a flattened trailing edge 17.
- the mixer disk 3 is to be arranged in the flow such that the rounded front edge 18 is directed counter to the flow and the flattened trailing edge 17 faces away from the flow.
- the mixer disk 3 shown in Fig. 13 has a trapezoidal base surface, wherein the narrower front side 19 of the flow is directed against and the wider trailing edge 20 faces away from the flow.
- the mixer disk 3 shown in FIG. 13 is thus flowed around from left to right just like the mixer disk 3 shown in FIG.
- FIGS. 14 and 15 Another embodiment of a trapezoidal mixer disk 3 is shown in FIGS. 14 and 15.
- the mixer disk 3 has a kink 21 which extends in the flow direction in the middle of the base surface of the mixer disk 3.
- the kink 21 extends, as can be seen in Fig. 15, so that the flow-facing side 22 of the mixer disk 3 drops slightly in the flow direction to the rear, while the top of the mixer disk 3 facing away from the flow is hollow.
- This shaping leads to a reinforcement of the leading edge vortices and to a mechanical stabilization of the mixer disk 3.
- FIGS. 16 and 17 show a further embodiment of a mixer disk 3 which has a triangular base surface in plan view but also has two creases 21 and 24 which extend radially from the tip 25 to the trailing edge 26, so that the Increase widths of the folded sides 27 and 28 in the flow direction.
- Fig. 17 the indicated in Fig. 16 section B-B is shown, in which one recognizes the two angled position of the sides 27 and 28.
- the mixer disk 3 shown in Figs. 16 and 17 is aligned in the flow just like the mixer disk shown in Figs.
- the flowed surface 22 of the mixer disk 3 is thus angled at its side edges relative to the flow, while the center is straight.
- the upstream side facing away from the flow 23 of the mixer disk 3 is thus again formed hollow.
- the fourth exemplary embodiment of a mixing device illustrated in FIG. 18 differs from the first exemplary embodiment illustrated in FIG. 1 in that the mixer disks 3 'have an elliptical base surface, as illustrated in FIG. 11. Incidentally, the structure corresponds to the example shown in FIG.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Food-Manufacturing Devices (AREA)
- Processing Of Solid Wastes (AREA)
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502005000780T DE502005000780D1 (de) | 2005-01-17 | 2005-01-17 | Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal |
PL05000811T PL1681090T3 (pl) | 2005-01-17 | 2005-01-17 | Urządzenie i sposób mieszania strumienia płynu w kanale przepływowym |
AT05000811T ATE363335T1 (de) | 2005-01-17 | 2005-01-17 | Vorrichtung und verfahren zum mischen eines fluidstroms in einem strömungskanal |
ES05000811T ES2285577T3 (es) | 2005-01-17 | 2005-01-17 | Dispositivo y procedimiento para el mezclado de un fluido que circula en una direccion de circulacion. |
EP05000811A EP1681090B1 (de) | 2005-01-17 | 2005-01-17 | Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal |
US11/168,656 US8066424B2 (en) | 2005-01-17 | 2005-06-29 | Mixing device |
TW094130603A TWI315215B (en) | 2005-01-17 | 2005-09-06 | Mixer and mixing method |
CNB2005101056236A CN100479908C (zh) | 2005-01-17 | 2005-09-28 | 混合器和混合方法 |
CA2532609A CA2532609C (en) | 2005-01-17 | 2006-01-11 | Mixing device and mixing method |
CA2711423A CA2711423C (en) | 2005-01-17 | 2006-01-11 | Mixing device and mixing method |
RU2006101280/15A RU2347605C2 (ru) | 2005-01-17 | 2006-01-16 | Смесительное устройство и способ смешивания текучей среды |
KR1020060004845A KR100739523B1 (ko) | 2005-01-17 | 2006-01-17 | 믹서 및 믹싱 방법 |
JP2006009213A JP4758768B2 (ja) | 2005-01-17 | 2006-01-17 | ミキサー及びミキシング方法 |
HK06110478.4A HK1088270A1 (en) | 2005-01-17 | 2006-09-20 | Mixer and mixing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05000811A EP1681090B1 (de) | 2005-01-17 | 2005-01-17 | Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal |
Publications (2)
Publication Number | Publication Date |
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EP1681090A1 EP1681090A1 (de) | 2006-07-19 |
EP1681090B1 true EP1681090B1 (de) | 2007-05-30 |
Family
ID=34933324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05000811A Active EP1681090B1 (de) | 2005-01-17 | 2005-01-17 | Vorrichtung und Verfahren zum Mischen eines Fluidstroms in einem Strömungskanal |
Country Status (13)
Country | Link |
---|---|
US (1) | US8066424B2 (ru) |
EP (1) | EP1681090B1 (ru) |
JP (1) | JP4758768B2 (ru) |
KR (1) | KR100739523B1 (ru) |
CN (1) | CN100479908C (ru) |
AT (1) | ATE363335T1 (ru) |
CA (2) | CA2711423C (ru) |
DE (1) | DE502005000780D1 (ru) |
ES (1) | ES2285577T3 (ru) |
HK (1) | HK1088270A1 (ru) |
PL (1) | PL1681090T3 (ru) |
RU (1) | RU2347605C2 (ru) |
TW (1) | TWI315215B (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017002811A1 (de) | 2017-03-22 | 2018-09-27 | Balcke-Dürr GmbH | Strömungskanal mit einer Mischvorrichtung |
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-
2005
- 2005-01-17 ES ES05000811T patent/ES2285577T3/es active Active
- 2005-01-17 EP EP05000811A patent/EP1681090B1/de active Active
- 2005-01-17 DE DE502005000780T patent/DE502005000780D1/de active Active
- 2005-01-17 PL PL05000811T patent/PL1681090T3/pl unknown
- 2005-01-17 AT AT05000811T patent/ATE363335T1/de not_active IP Right Cessation
- 2005-06-29 US US11/168,656 patent/US8066424B2/en active Active
- 2005-09-06 TW TW094130603A patent/TWI315215B/zh active
- 2005-09-28 CN CNB2005101056236A patent/CN100479908C/zh not_active Expired - Fee Related
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017002811A1 (de) | 2017-03-22 | 2018-09-27 | Balcke-Dürr GmbH | Strömungskanal mit einer Mischvorrichtung |
Also Published As
Publication number | Publication date |
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TW200626225A (en) | 2006-08-01 |
KR20060083902A (ko) | 2006-07-21 |
RU2006101280A (ru) | 2007-08-10 |
ES2285577T3 (es) | 2007-11-16 |
CA2711423C (en) | 2013-01-08 |
ATE363335T1 (de) | 2007-06-15 |
EP1681090A1 (de) | 2006-07-19 |
TWI315215B (en) | 2009-10-01 |
PL1681090T3 (pl) | 2007-10-31 |
RU2347605C2 (ru) | 2009-02-27 |
CA2532609C (en) | 2010-09-14 |
JP4758768B2 (ja) | 2011-08-31 |
DE502005000780D1 (de) | 2007-07-12 |
KR100739523B1 (ko) | 2007-07-13 |
US8066424B2 (en) | 2011-11-29 |
CN1806903A (zh) | 2006-07-26 |
CN100479908C (zh) | 2009-04-22 |
JP2006198615A (ja) | 2006-08-03 |
HK1088270A1 (en) | 2006-11-03 |
CA2711423A1 (en) | 2006-07-17 |
CA2532609A1 (en) | 2006-07-17 |
US20060158961A1 (en) | 2006-07-20 |
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