DE102007008925A1 - Device for influencing small flow, open mixing containers e.g. cans or tumblers or cylinders or bowl, has guide vane that is influenced by flow direction in form and force fitted manner, and which is attached on edge of mixing container - Google Patents
Device for influencing small flow, open mixing containers e.g. cans or tumblers or cylinders or bowl, has guide vane that is influenced by flow direction in form and force fitted manner, and which is attached on edge of mixing container Download PDFInfo
- Publication number
- DE102007008925A1 DE102007008925A1 DE102007008925A DE102007008925A DE102007008925A1 DE 102007008925 A1 DE102007008925 A1 DE 102007008925A1 DE 102007008925 A DE102007008925 A DE 102007008925A DE 102007008925 A DE102007008925 A DE 102007008925A DE 102007008925 A1 DE102007008925 A1 DE 102007008925A1
- Authority
- DE
- Germany
- Prior art keywords
- vessel
- edge
- flow
- guide vane
- vane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000002033 PVDF binder Substances 0.000 claims abstract description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 3
- 239000004698 Polyethylene Substances 0.000 claims abstract description 3
- 239000004743 Polypropylene Substances 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/50—Mixing receptacles
- B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
- B01F35/531—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom
- B01F35/5312—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom with vertical baffles mounted on the walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
- B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/55—Baffles; Flow breakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/08—Regulating or influencing the flow resistance
- B01L2400/084—Passive control of flow resistance
- B01L2400/086—Passive control of flow resistance using baffles or other fixed flow obstructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Zur täglichen Arbeit in Laboratorien gehört das Rühren von Flüssigkeiten. Vor allem in der Chemie müssen in großem Umfang kleinere Mengen Reagenzien miteinander gemischt oder feste Substanzen in Flüssigkeit gelöst werden. Dazu werden die zu mischenden Stoffe in Bechergläser gegeben und mittels Rührstäbchen die meist magnetisch angetrieben werden vermischt. Nachteilig dabei ist, daß sich durch die Drehbewegung des Gemenges eine weitgehend laminare horizontale Kreisströmung ausbildet die die Durchmischung verzögert, den Zeitaufwand für den Mischvorgang vergrößert und durch die Zentrifugalkraft unerwünschte Sedimentationseffekte auftreten.to daily Work in laboratories is one of them stir of liquids. Especially in chemistry need in big Scope smaller amounts of reagents mixed together or solid Substances in liquid solved become. For this purpose, the substances to be mixed are placed in beakers and by means of stirring bars the usually magnetically driven are mixed. Disadvantageous is that through the rotary motion of the batch is a largely laminar horizontal circular flow forms the mixing delay, the time required for the mixing process enlarged and unwanted by the centrifugal force Sedimentation effects occur.
Aufgabe der Erfindung ist es, eine Mischvorrichtung zu entwickeln, die schneller und effektiver als die bisher bekannten Mischeinrichtungen arbeitet.task The invention is to develop a mixing device that is faster and more effective than the previously known mixing devices.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale der Schutzansprüche gelöst.According to the invention this Problem solved by the features of the claims.
Auf den Rand des Mischgefäßes wird mindestens ein, die Strömung beeinflussender, durch Form- und/oder Kraftschluß haftender Stromstörer-Clip mit mindestens einer Leitschaufel aufgesteckt, die die zwangsläufig vorhandene horizontale Kreisströmung, zumindest teilweise in eine vertikale Strömung mit hohem turbulentem Anteil wandelt. Eine einfache und zweckmäßige Form der Vorrichtung ähnelt einer Wäscheklammer mit unterschiedlich geformten Schenkeln, deren innerer, benetzbarer, vorzugsweise die Form einer Leitschaufel besitzt, deren Geometrie in verschiedenen Varianten auch unterschiedliche Formen aufweist.On the edge of the mixing vessel is at least one, the flow influencing, by form and / or adhesion adherent baffle clip attached with at least one vane, which inevitably exist horizontal circular flow, at least partially in a vertical flow with high turbulent Share converts. A simple and convenient form of the device is similar to one clothes peg with differently shaped legs, whose inner, wettable, preferably has the shape of a guide vane whose geometry also has different shapes in different variants.
Die den oberen Rand bildende Seitenwand des Mischgefäßes wird dabei u-förmig vom vorzugsweise federelastischen Stromstörer-Clip so umklammert, daß dieser dem Druck durch die anströmende Flüssigkeit standhält. Zur Verstärkung der Haftkraft kann auch mindestens eine Feder zwischen den Schenkeln angeordnet sein. Bei glatten Gefäßwänden eignen sich zudem Sauger die bevorzugt auf der äußeren Oberfläche angewendet werden. Vorzugsweise sind die Stromstörer-Clips aus einem einheitlichen Material, besonders bevorzugt aus Kunststoff wie PP oder PE oder PEEK oder PVDF gefertigt, sie können aber auch aus beliebigen anderen Werkstoffen oder Werkstoffkombinationen bestehen, bei Metallen insbesondere aus Edelstahl aber auch aus Glas oder Keramik und/oder Verbünden davon.The The upper edge forming side wall of the mixing vessel is doing U-shaped from preferably spring-elastic baffle clip clasped so that this the pressure of the inflowing liquid withstand. For reinforcement The adhesive force can also be at least one spring between the legs be arranged. Suitable for smooth vessel walls In addition, sucker preferably applied to the outer surface become. Preferably, the baffles clips from a single Material, particularly preferably made of plastic such as PP or PE or PEEK or PVDF made, you can but also from any other materials or material combinations exist, for metals in particular stainless steel but also glass or ceramics and / or composites from that.
Viele Mischgefäße besitzen einen Wulst am oberen Rand der zur exakten und reproduzierbaren Befestigung des die Strömung beeinflussenden Stromstörer-Clips genutzt werden kann, indem dieser in seinem Befestigungsbereich mit Nuten und/oder Stegen und/oder einem wellenförmigen Profil ausgestattet ist. Bei hochviskosen Fluiden kann eine Variante mit wenigstens einer Verstärkungsrippe im Klammerbereich verwendet werden.Lots Own mixing vessels a bead at the top of the exact and reproducible attachment of the flow influencing baffle clips can be used by this in his attachment area equipped with grooves and / or webs and / or a wave-shaped profile is. For highly viscous fluids, a variant with at least a reinforcing rib in the Bracket area can be used.
Die Stromstörer-Clips können in vielen Gestaltungsvarianten verwendet werden.The Baffles Clips can be used in many design variants.
Zur einfachen Strömungsstörung reicht eine vorzugsweise lotrecht angeordnete, gerade Klammer, deren benetzte Seite rechtwinklig oder spitz- oder stumpfwinklig, bevorzugt konzentrisch zur rotierenden Flüssigkeit gerichtet ist und deren Ende bis zum Gefäßboden reichen kann. Das führt zwangsläufig zur Änderung der überwiegend laminaren horizontalen Kreisströmung zu einer überwiegend turbulenten horizontalen Kreisströmung die den Mischungsvorgang verbessert.to simple flow disturbance is enough a preferably vertically arranged, straight bracket whose wetted Side rectangular or acute or obtuse, preferably concentric to the rotating liquid is directed and the end can extend to the bottom of the vessel. This inevitably leads to change the predominantly laminar horizontal circular flow to a predominantly turbulent horizontal circular flow the the mixing process improved.
Um die horizontale Kreisströmung zumindest teilweise in mindestens eine, vorzugsweise mehrere, vertikal aufwärts oder/und abwärts gerichtete Strömung zu wandeln ist die benetzte Seite des Stromstörer-Clips als Leitschaufel ausgeführt die in mehrere Wirkungsbereiche aufgeteilt sein kann und deren benetzte Fläche oder Flächen unterschiedliche Neigungswinkel aufweisen können. Das untere Ende der Leitschaufel kann gerade oder gebogen und gefäßseitig gefast oder gerundet sein.Around the horizontal circular flow at least partially in at least one, preferably several, vertically up and / or down directed flow To convert is the wetted side of the baffle clip as a vane accomplished which can be divided into several areas of action and their wetted area or areas may have different angles of inclination. The lower end of the vane can be straight or curved and vessel side be fasted or rounded.
Durch wendelförmige Ausführung der Leitschaufel können besonders effektive Mischungsvorgänge bewirkt werden.By helical execution the vane can particularly effective mixing operations are effected.
Die Bewirkung von Drall kann verstärkt werden wenn die Leitschaufel in mehrere Einzelflächen aufgeteilt und diese mit unterschiedlichen Winkeln zueinander angeordnet sind. Auch die vertikale und/oder horizontale Biegung der Leitschaufel oder mindestens einer ihrer Einzelflächen führt zu diesem gewünschten Effekt.The Effect of twist can be amplified If the vane divided into several individual areas and this with are arranged at different angles to each other. Also the vertical and / or horizontal bending of the vane or at least one of its individual areas leads to this desired Effect.
Um die Durchmischung noch weiter zu intensivieren und die Anwendung zu vereinfachen können mehrere Stromstörer-Clips zu einer Einheit zusammengefasst sein und der Abstand zwischen ihnen vorzugsweise äquidistant. Vorzugsweise sind die Clips im nicht benetzten Bereich außerhalb oder oberhalb des Mischgefäßes mittels eines ring- oder bandförmigen Elementes miteinander verbunden.Around to intensify the mixing even further and the application can simplify several Baffles Clips be grouped together and the distance between them preferably equidistant. Preferably, the clips are outside in the non-wetted area or above the mixing vessel by means a ring or band-shaped element connected with each other.
Mit steigender Anzahl der gleichzeitig verwendeten Stromstörer-Clips verringert sich auch das Hochsteigen der fluiden Mischung an der Behälterwand.With increasing number of simultaneously used baffled clips also decreases the rise of the fluid mixture at the Container wall.
Die Leitschaufeln müssen nicht senkrecht stehend parallel zur Behälterwand angeordnet sein, sie können in jedem Winkel von 0° bis 90°, bevorzugt jedoch parallel senkrecht bis diagonal, verwendet werden. Durch eine Schrägstellung kann, bedingt durch den Radius des Mischbehälters die wandnahe Strömung zu einem geringen Teil auch hinter dem Stromstörer vorbeifliessen.The guide vanes need not be arranged vertically standing parallel to the container wall, they can at any angle of 0 ° to 90 °, preferably however parallel vertical to diagonal, can be used. Due to an inclination, due to the radius of the mixing container, the near-wall flow can flow to a small extent behind the baffle.
In den Zeichnungen sind schematisiert einige beispielhafte Ausführungen der Erfindung dargestellt.In The drawings are schematic of some exemplary embodiments represented the invention.
Dabei zeigt:there shows:
Das
in
Um
das vom Mischgut induzierte Drehmoment besser abstützen zu
können
ohne daß sich
der Stromstörer
Die
In
Die
in
Die
Leitschaufel
Weitere
beispielhafte Ausführungsformen mit
einfach gebogenen Leitschaufeln
In
Daß die Leitschaufel
Claims (31)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007008925A DE102007008925A1 (en) | 2007-02-23 | 2007-02-23 | Device for influencing small flow, open mixing containers e.g. cans or tumblers or cylinders or bowl, has guide vane that is influenced by flow direction in form and force fitted manner, and which is attached on edge of mixing container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007008925A DE102007008925A1 (en) | 2007-02-23 | 2007-02-23 | Device for influencing small flow, open mixing containers e.g. cans or tumblers or cylinders or bowl, has guide vane that is influenced by flow direction in form and force fitted manner, and which is attached on edge of mixing container |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007008925A1 true DE102007008925A1 (en) | 2008-08-28 |
Family
ID=39645887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007008925A Withdrawn DE102007008925A1 (en) | 2007-02-23 | 2007-02-23 | Device for influencing small flow, open mixing containers e.g. cans or tumblers or cylinders or bowl, has guide vane that is influenced by flow direction in form and force fitted manner, and which is attached on edge of mixing container |
Country Status (1)
Country | Link |
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DE (1) | DE102007008925A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104923146A (en) * | 2015-06-30 | 2015-09-23 | 新乡市瑞丰新材料股份有限公司 | Baffle plate device of open type reaction kettle |
-
2007
- 2007-02-23 DE DE102007008925A patent/DE102007008925A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104923146A (en) * | 2015-06-30 | 2015-09-23 | 新乡市瑞丰新材料股份有限公司 | Baffle plate device of open type reaction kettle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: BUERKLE GMBH, 79415 BAD BELLINGEN, DE |
|
8139 | Disposal/non-payment of the annual fee |