DE2544457B1 - Flow regulator for a papermaking machine - angled fin arrangement eliminates fibre built-up - Google Patents
Flow regulator for a papermaking machine - angled fin arrangement eliminates fibre built-upInfo
- Publication number
- DE2544457B1 DE2544457B1 DE19752544457 DE2544457A DE2544457B1 DE 2544457 B1 DE2544457 B1 DE 2544457B1 DE 19752544457 DE19752544457 DE 19752544457 DE 2544457 A DE2544457 A DE 2544457A DE 2544457 B1 DE2544457 B1 DE 2544457B1
- Authority
- DE
- Germany
- Prior art keywords
- flow
- edge
- rib
- ribs
- wall
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims description 6
- 230000001154 acute effect Effects 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract 4
- 239000007788 liquid Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims 3
- 239000000725 suspension Substances 0.000 claims 3
- 239000007787 solid Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
Es zeigt F i g. 1 eine Ansicht mit Teilschnitt eines erfindung gemäßen Stromungsgleichrichters, Fig. 2 eine Seitenansicht zur Fig. 1, Fig.3 eine der Fig.1 entsprechende Ansicht mit Teilschnitt eines Strömungsgleichrichters in der Form eines Krümmers, F i g. 4 eine Seitenansicht zur F i g. 3, F i g. 5 einen Teilschnitt nach der Linie V-V in der Fig. lunddie Fig.6 und 7 der Fig.2 entsprechende Ansichten zweier weiterer Ausführungsformen des Strömungsgleichrichters für rechteckige Rohre. It shows F i g. 1 is a view with partial section of an invention Flow rectifier, FIG. 2 shows a side view of FIG. 1, FIG. 3 shows one of FIG corresponding view with partial section of a flow straightener in the form a bend, F i g. 4 is a side view of FIG. 3, fig. 5 a partial section along the line V-V in FIG. 1 and the views corresponding to FIGS. 6 and 7 of FIG two further embodiments of the flow straightener for rectangular tubes.
Der in den F i g. 1 und 2 dargestellte Gleichrichter hat die Form eines Rohres 1 mit kreuzweise angeordneten Rippen 2. Die Rippen 2 sind jeweils mit einem Rand 3 an der Wand des Rohres befestigt, wobei der andere Rand 4 in den Innenraum des Rohres hineinragt. Zwischen zwei in einer radialen Ebene liegenden Rippen 2 befindet sich ein Zwischenraum 5. The in the F i g. 1 and 2 shown rectifier has the form a tube 1 with crosswise arranged ribs 2. The ribs 2 are each with one edge 3 attached to the wall of the pipe, the other edge 4 in the interior of the pipe protrudes. Between two ribs 2 lying in a radial plane there is a space 5.
Wie aus der F i g. 1 ersichtlich ist, bildet die vordere, von der Flüssigkeit angeströmte Kante 6 mit einer zur Strömungsrichtung S senkrechten Ebene E einen spitzen Winkel a. As shown in FIG. 1 can be seen, forms the front of the Edge 6 against which the liquid flows, with a plane perpendicular to the direction of flow S. E an acute angle a.
In gleicher Weise bildet auch die bezüglich der Strömungsrichtung S hintere Abströmkante 7 mit der entsprechenden Ebene Eeinen spitzen Winkel ß. In the same way, it also forms with respect to the direction of flow S rear trailing edge 7 with the corresponding plane E an acute angle ß.
Durch die Anordnung der Rippen 2 wird die Bildung von Drallströmungen im Rohr 1 verhindert. Wegen des schrägen Verlaufes der Anströmkanten 6 wird auch ein Stauen von Fasern auf diesen Kanten verunmöglicht. The arrangement of the ribs 2 results in the formation of swirl currents prevented in pipe 1. Because of the inclined course of the leading edges 6 is also a build-up of fibers on these edges is impossible.
Durch den Zwischenraum 5 zwischen den Rippen 2 wird der Kreuzungspunkt der Rippen beseitigt, der einen besonders ausgeprägten Staupunkt bildet. Dabei wird durch die Beseitigung des Kreuzpunktes die Wirkung des Gleichrichters nicht beeinflußt.The intersection point becomes through the space 5 between the ribs 2 the ribs eliminated, which forms a particularly pronounced stagnation point. It will by removing the cross point, the effect of the rectifier is not influenced.
Die F i g. 3 und 4 zeigen einen der Ausführungsform nach den F i g. 1 und 2 entsprechenden Gleichrichter, der jedoch die Form eins Krümmers hat. Hier sind Rippen 2' in einem gekrümmten Rohr 1' angeordnet. Im übrigen sind die Verhältnisse gleich wie bei der Ausführungsform nach den F i g. 1 und 2. The F i g. 3 and 4 show one of the embodiment according to FIGS G. 1 and 2 correspond to the rectifier, but it has the shape of an elbow. Here ribs 2 'are arranged in a curved tube 1'. By the way, they are Conditions are the same as in the embodiment according to FIGS. 1 and 2.
Die Fig. 5, welche dem Schnitt V-V in der Fig. 1 entspricht, zeigt die abgerundete Anströmkante 6 der Rippen 2 bzw. 2'. Diese unterstützen die Bildung einer wirbelfreien Strömung entlang der Rippen 2. Die Abströmkanten 7 können in gleicher Weise abgerundet sein. Unter Umständen können sie jedoch auch mit einer nicht dargestellten scharfen Kante versehen sein, so daß die Rippen nach der Art eines Strömungskörpers ausgebildet sind. FIG. 5, which corresponds to section V-V in FIG. 1, shows the rounded leading edge 6 of the ribs 2 and 2 '. These support education an eddy-free flow along the ribs 2. The trailing edges 7 can in be rounded in the same way. However, you may also be able to use a be provided sharp edge, not shown, so that the ribs according to Art a flow body are formed.
Die F i g. 6 und 7 zeigen die Anordnung der erfindungsgemäßen Rippen in Rohren mit rechteckigen Querschnitten. The F i g. 6 and 7 show the arrangement of the ribs according to the invention in tubes with rectangular cross-sections.
Nach der Fig.6 sind in einem Rohr 11 Rippen 12 angeordnet, die sich jeweils bis in den mittleren Bereich des Rohres erstrecken, wobei sich zwischen ihren Rändern Zwischenräume 15 befinden. According to Figure 6 11 ribs 12 are arranged in a tube, which each extend into the central region of the tube, with between their edges are spaces 15.
Bei der Ausführungsform nach der Fig.7 sind in einem Rohr 21 Rippen 22 abwechselnd angeordnet, derart, daß sich die Zwischenräume 25 jeweils im Bereich der Rohrwand befinden, welcher dem am Rohr befestigten Rand 23 der Rippe entgegengesetzt ist. In the embodiment according to FIG. 7 there are 21 ribs in a tube 22 arranged alternately in such a way that the spaces 25 are each in the area the pipe wall, which is opposite to the edge 23 of the rib attached to the pipe is.
Durch die Zwischenräume 25 wird die Bildung von Staupunkten zwischen den Rippen 22 und der jeweils der Rippe gegenüberliegenden Wand vermieden. Through the spaces 25, the formation of stagnation points between the ribs 22 and the respective wall opposite the rib avoided.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752544457 DE2544457C2 (en) | 1975-10-04 | Flow straightener for flow media with solid particles held in suspension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752544457 DE2544457C2 (en) | 1975-10-04 | Flow straightener for flow media with solid particles held in suspension |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2544457B1 true DE2544457B1 (en) | 1976-12-16 |
DE2544457C2 DE2544457C2 (en) | 1977-08-04 |
Family
ID=
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542825A1 (en) * | 1983-03-15 | 1984-09-21 | Flonic Sa | TRANQUILIZER APPARATUS FOR REGULARIZING THE PROFILE OF FLOWING FLUID SPEEDS |
WO2017162285A1 (en) * | 2016-03-23 | 2017-09-28 | Husqvarna Ab | Tap connector with flow stabilization |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542825A1 (en) * | 1983-03-15 | 1984-09-21 | Flonic Sa | TRANQUILIZER APPARATUS FOR REGULARIZING THE PROFILE OF FLOWING FLUID SPEEDS |
EP0123569A1 (en) * | 1983-03-15 | 1984-10-31 | Schlumberger Industries | Tranquilizing device for stabilising the speed rate of a flowing fluid |
WO2017162285A1 (en) * | 2016-03-23 | 2017-09-28 | Husqvarna Ab | Tap connector with flow stabilization |
CN108603627A (en) * | 2016-03-23 | 2018-09-28 | 富世华股份有限公司 | Faucet coupling with flow stability |
EP3433527B1 (en) * | 2016-03-23 | 2021-11-24 | Husqvarna AB | Tap connector with flow stabilization |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |