DE3637216C1 - Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium - Google Patents
Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing mediumInfo
- Publication number
- DE3637216C1 DE3637216C1 DE3637216A DE3637216A DE3637216C1 DE 3637216 C1 DE3637216 C1 DE 3637216C1 DE 3637216 A DE3637216 A DE 3637216A DE 3637216 A DE3637216 A DE 3637216A DE 3637216 C1 DE3637216 C1 DE 3637216C1
- Authority
- DE
- Germany
- Prior art keywords
- self
- suction strainer
- cleaning
- screen
- flowing medium
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/58—Power supply means for regenerating the filter
- B01D2201/583—Power supply means for regenerating the filter using the kinetic energy of the fluid circulating in the filtering device
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Die Erfindung betrifft ein selbstreinigendes Ansaugsieb zur Entnahme von gereinigter Flüssigkeit aus einem verschmutzten, fließenden Medium nach dem Oberbegriff des Patentanspruchs 1. Ein derartiges selbstreinigendes Ansaugsieb ist bekannt durch die DE 29 28 093 B2. Zur Erzielung der Selbstreinigung ist dort allerdings eine störanfällige Steuerklappeneinrichtung notwendig. Pumpen in verschmutzten oder stark fließenden Medien, zum Beispiel Fließgewässern, benötigen aber zur Aufrechterhaltung der Pumpenfunktion stets offene Ansaugsiebe. Bei solchen Einsätzen verstopfen die Ansaugsiebe in der Ausführung gemäß der DE 29 28 093 B2 bei Störungen an der Steuerklappeneinrichtung jedoch sehr schnell, da die größeren Schwebeanteile auf die Sieboberfläche aufintegriert werden und sich von selbst nicht mehr lösen.The invention relates to a self-cleaning suction strainer Removal of cleaned liquid from a dirty, flowing medium according to the preamble of the claim 1. Such a self-cleaning suction strainer is known from DE 29 28 093 B2. To achieve self-cleaning there is however a control flap device susceptible to failure necessary. Pumping in dirty or heavily flowing media, for example flowing water, but need to maintain the pump function always open suction strainers. Block in such operations the suction strainers in the version according to DE 29 28 093 B2 in the event of faults in the control valve device, however very quickly because the larger amounts of suspended matter on the screen surface be integrated and not by itself solve more.
Die Folge ist eine schlechte oder gar keine weitere Förderung von gereinigter Flüssigkeit oder sogar ein Pumpentotalausfall wegen zu geringer Kühlung des Pumpenmotors.The result is poor or no further funding of cleaned liquid or even a total pump failure due to insufficient cooling of the pump motor.
Der Erfindung liegt die Aufgabe zugrunde, das vorgenannte selbstreinigende Ansaugsieb frei von Verschmutzungen und Verkrustungen zu halten ohne hierzu eine störanfällige Steuerklappeneinrichtung zu benötigen. The invention has for its object the aforementioned self-cleaning suction strainer free of dirt and Keep incrustations without being prone to failure Control valve device required.
Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Für die Selbstreinigungsfunktion ist es unerheblich, ob die Lagerung mediendicht ist oder nicht.The object is achieved by the characterizing Features of claim 1 solved. For the self-cleaning function it is irrelevant whether the storage is media-tight is or not.
Die Drehung des selbstreinigenden Ansaugsiebes erfolgt hierbei passiv oder aktiv.The self-cleaning suction strainer rotates here passive or active.
Ein wichtiges Kriterium für die Reinhaltung des Siebes ist außerdem seine Größe. Sie sollte so groß bemessen sein, daß durch das vorbei- und durchströmende Medium eine Geschwindigkeitskomponente auf der Abströmseite nach außen zeigt. Diese Komponente bewirkt, daß die erst kurz anhaftenden Schmutzteilchen nach Drehung des Siebes wieder freigesetzt und vom Medium mitgenommen werden.An important criterion for keeping the sieve clean is also its size. It should be so large that a speed component due to the passing and flowing medium on the downstream side. These Component causes the dirt particles to adhere only briefly released after rotation of the sieve and from Medium.
Die passive Drehbewegung kann durch verschiedene Hilfsmittel, die mit dem Sieb verbunden sind, erreicht werden.The passive rotary movement can be connected to the sieve.
Es können dies sein:These can be:
-
1. Anemometerflügel (halbkugelförmig oder halbzylindrisch)
2. Turbinenflügel
3. Schnecken1. Anemometer wing (hemispherical or semi-cylindrical)
2. Turbine blades
3. Snails
Bei aktiver Drehbewegung erfolgt die Bewegung des Siebes über mechanische Einrichtungen mittels Motoren. When the rotary movement is active, the sieve moves about mechanical devices using motors.
Nachstehend wird die Erfindung anhand von Ausführungsbeispielen näher erläutert.The invention is described below using exemplary embodiments explained in more detail.
Es zeigtIt shows
Fig. 1 in Axialschnitt und Draufsicht ein selbstreinigendes Ansaugsieb, das eine kugelförmige Gestalt hat und mit (halbkugelförmigen) Anemometerflügeln ausgestattet ist, Fig. 1 in axial section and plan view of a self-cleaning suction strainer, which has a spherical shape and is equipped with (hemispherical) Anemometerflügeln,
Fig. 2 in Axialschnitt und Draufsicht ein selbstreinigendes Ansaugsieb, das eine halbkugelförmige Gestalt hat und mit (halbkugelförmigen) Anemometerflügeln ausgestattet ist, Fig. 2 in axial section and plan view of a self-cleaning suction strainer, which has a hemispherical shape and is equipped with (hemispherical) Anemometerflügeln,
Fig. 3 in Axialschnitt und Draufsicht ein selbstreinigendes Ansaugsieb mit zylindrischer Gestalt, das ebenfalls mit (halbzylindrischen) Anemometerflügeln ausgestattet ist, Fig. 3 in axial section and plan view of a self-cleaning suction strainer of cylindrical shape, which is also equipped with (semi-cylindrical) Anemometerflügeln,
Fig. 4 in Axialschnitt und Draufsicht ein selbstreinigendes Ansaugsieb mit halbkugelförmiger Gestalt, das im Innern mit Turbinenflügeln ausgestattet ist, Fig. 4 in axial cross-section and plan view of a self-cleaning intake screen having a hemispherical shape, which is equipped inside with turbine blades,
Fig. 5 in Axialschnitt und Draufsicht ein selbstreinigendes Ansaugsieb zylindrischer Gestalt mit einer Schnecke im Innern des Ansaugrohres und Fig. 5 in axial section and top view of a self-cleaning suction sieve cylindrical shape with a screw inside the suction pipe and
Fig. 6 eine Darstellung der Strömungsverhältnisse am Ansaugsieb. Fig. 6 shows the flow conditions on the suction strainer.
Alle gezeigten Formen des selbstreinigenden Ansaugsiebes (AS), Kugelform, Halbkugelform und Zylinderform können mit allen gezeigten passiven Antriebselementen wie Anemometerflügeln (AF) oder Turbinenflügeln (TF) oder Schnecke (S) ausgerüstet werden. All shown forms of self-cleaning suction strainer (AS) , spherical shape, hemispherical shape and cylindrical shape can be equipped with all shown passive drive elements such as anemometer blades ( AF) or turbine blades (TF) or screw ( S) .
Bei Anwendung eines Aktivantriebes können ebenfalls alle drei o. a. Formen des Ansaugsiebes (AS) Verwendung finden.When using an active drive, all three of the above-mentioned forms of the suction strainer (AS) can also be used.
Für die Größe des Ansaugsiebes gelten außerdem folgende Parameter:The following also apply to the size of the suction strainer Parameter:
-
1. Die Sieboberfläche "F" sollte so ausgelegt sein, daß
die durchströmende Menge "Md", bei ausgeschalteter Pumpe
gemessen, größer ist als die abgepumpte Menge "Mp" also
mit
x <
Md = (1 + x) · Mp2. Die Strömungsverhältnisse am Ansaugsieb entsprechen dann den in Fig. 6 aufgezeigten Verhältnissen.1. The sieve surface "F" should be designed so that the flow rate "Md" , measured when the pump is switched off, is greater than the pumped-out amount "Mp" with x <
Md = (1 + x) · Mp 2. The flow conditions on the suction strainer then correspond to the conditions shown in FIG. 6.
Das heißtThis means
ist.is.
Der Strömungsbeiwert c w des Ansaugsiebes ergibt sich aus:The flow coefficient c w of the suction strainer results from:
wobei für die freie Strömung und für die Strömung innerhalb des Siebes gilt.being for free flow and for flow applies within the sieve.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3637216A DE3637216C1 (en) | 1986-10-31 | 1986-10-31 | Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3637216A DE3637216C1 (en) | 1986-10-31 | 1986-10-31 | Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3637216C1 true DE3637216C1 (en) | 1988-05-11 |
Family
ID=6312953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3637216A Expired DE3637216C1 (en) | 1986-10-31 | 1986-10-31 | Self-cleaning intake screen for take-off of purified liquid from a polluted, flowing medium |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3637216C1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027422A1 (en) * | 1995-03-04 | 1996-09-12 | United Utilities Plc | Rotating screen and drive unit |
WO2004009212A2 (en) * | 2002-07-23 | 2004-01-29 | John Edgar Scragg | Fluid filters |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2928093B2 (en) * | 1979-07-12 | 1981-06-04 | Ludwig Taprogge Reinigungsanlagen für Röhren-Wärmeaustauscher, 4000 Düsseldorf | Device for separating solids from a liquid stream |
-
1986
- 1986-10-31 DE DE3637216A patent/DE3637216C1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2928093B2 (en) * | 1979-07-12 | 1981-06-04 | Ludwig Taprogge Reinigungsanlagen für Röhren-Wärmeaustauscher, 4000 Düsseldorf | Device for separating solids from a liquid stream |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027422A1 (en) * | 1995-03-04 | 1996-09-12 | United Utilities Plc | Rotating screen and drive unit |
GB2314033A (en) * | 1995-03-04 | 1997-12-17 | United Utilities Plc | Rotating Screen and Drive Unit |
GB2314033B (en) * | 1995-03-04 | 1998-06-24 | United Utilities Plc | Rotating Screen and Drive Unit |
WO2004009212A2 (en) * | 2002-07-23 | 2004-01-29 | John Edgar Scragg | Fluid filters |
WO2004009212A3 (en) * | 2002-07-23 | 2004-04-29 | John Edgar Scragg | Fluid filters |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |