DE4013487C2 - Device for protecting the nozzles in large washers from clogging - Google Patents
Device for protecting the nozzles in large washers from cloggingInfo
- Publication number
- DE4013487C2 DE4013487C2 DE19904013487 DE4013487A DE4013487C2 DE 4013487 C2 DE4013487 C2 DE 4013487C2 DE 19904013487 DE19904013487 DE 19904013487 DE 4013487 A DE4013487 A DE 4013487A DE 4013487 C2 DE4013487 C2 DE 4013487C2
- Authority
- DE
- Germany
- Prior art keywords
- nozzles
- sieve
- pumps
- protecting
- clogging
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Bei Großwäschern ist es bekannt, daß gipsartige Rückstände im Bereich der Pumpen, die alkalisches Medium zu den Düsen pumpen, zu Verstopfun gen an den Düsen führen.In large washers, it is known that gypsum-like residues in the area of the pumps that pump alkaline medium to the nozzles to blockage on the nozzles.
Siebe im Saugbereich der Pumpen haben sich nicht bewährt, da teilweise regelrechte Wallbildungen auftreten, die dann ein Trockenlaufen der Pumpen verursachen und somit eine Zerstörung der Gleitringdichtungen zur Folge haben.Sieves in the suction area of the pumps have not proven their worth, because some of them veritable wall formations occur, which then a dry running of the Pumps cause destruction of the mechanical seals have as a consequence.
Es ist weiterhin versucht worden, auf der Druckseite der Pumpen unmit telbar eine Siebvorrichtung einzusetzen, und zwar in Form eines Dreh trommelsiebes, was sehr aufwendig und sehr, sehr kostenintensiv ist.Attempts have continued to be made on the pressure side of the pumps telbar to use a screening device, in the form of a rotation drum screen, which is very complex and very, very expensive.
Aus der DE-OS 33 06 003 und der DE-AS 22 02 759 ist bekannt in Rohr leitungen Siebe zur Abscheidung unerwünschter Feststoffe aus einem Flüssigkeitsstrom anzuordnen. Die bekannten Siebe sind auch mit auch mit einer Rückspülvorrichtung ausgerüstet. Aus den beiden Druckschrif ten geht jedoch nicht hervor, für welchen Druckbereich die Siebe ge dacht sind. Auch sind die Rückspüleinrichtungen mit Klappen und sepa raten Rohrleitungen versehen, was einen hohen baulichen Aufwand erfor dert.From DE-OS 33 06 003 and DE-AS 22 02 759 is known in Rohr lines screens for separating unwanted solids from a Arrange liquid flow. The well-known sieves are also included equipped with a backwash device. From the two printed matter However, it is not clear for which pressure range the screens are are thought. The backwashing devices are also with flaps and sepa advise piping, which requires a lot of construction different.
Erfindungsgemäß wird daher vorgeschlagen, im Bereich kleiner als 1000 hPa kurz vor den eigentlichen Düsen ein profiliertes Sieb anzuordnen und eine Druckmeßeinrichtung unmittelbar nach dem Sieb zwischen Sieb und Düsen einzusetzen, wobei die Druckmeßeinrichtung bei sehr hohem Druckabfall infolge einer Siebverstopfung ein Signal an die Pumpen ab gibt, das die Pumpen abbremst und in entgegengesetzter Richtung laufen läßt.It is therefore proposed according to the invention in the range less than 1000 hPa to place a profiled sieve just before the actual nozzles and a pressure measuring device immediately after the screen between the screen and use nozzles, the pressure measuring device at very high Pressure drop due to a blockage in the screen sends a signal to the pumps there that the pumps brake and run in the opposite direction leaves.
In der Zeichnung ist ein Ausführungsbeispiel dargestellt, wobei mitIn the drawing, an embodiment is shown, with
1 die Pumpe,
2 die Steigrohrleitung der Pumpe,
3 die Kompensatoren,
4 die Siebe,
5 die Druckwächter,
6 die Düsen 1 the pump,
2 the riser pipe of the pump,
3 the compensators,
4 the sieves,
5 the pressure switches,
6 the nozzles
bezeichnet wird.referred to as.
Erfindungsgemäß sind die Siebe 4 kurz vor den Düsen 6, vorzugsweise im Bereich der Kompensatoren 3, angebracht, damit der maximale Druckab fall, der die Siebe 4 belasten kann, nicht mehr so groß ist. In der Nähe der Siebe 4 ist der Enddruck des Wassers praktisch schon er reicht, so daß die Siebe 4, wenn sie zugesetzt sind, nicht durch einen hohen Druckabfall, der unmittelbar hinter der Pumpe 1 natürlich meh rere tausend hPa groß sein kann, zerbersten können.According to the invention, the sieves 4 are attached shortly before the nozzles 6 , preferably in the area of the compensators 3 , so that the maximum pressure drop which can strain the sieves 4 is no longer as great. In the vicinity of the sieves 4 , the final pressure of the water is practically sufficient, so that the sieves 4 , if they are clogged, cannot burst due to a high pressure drop, which can of course be several thousand hPa immediately behind the pump 1 .
Ein Vorteil der erfindungsgemäßen Vorrichtung ist auch, daß nach dem Abschalten der Pumpe die im Sieb festgehaltenen Teilchen mit der ab laufenden Wassersäule nach unten abgezogen werden, so daß ein Selbst reinigungseffekt der Siebflächen gegeben ist.An advantage of the device according to the invention is also that after Switch off the pump, the particles held in the sieve with the running water column are pulled down so that a self cleaning effect of the screen surfaces is given.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904013487 DE4013487C2 (en) | 1990-04-27 | 1990-04-27 | Device for protecting the nozzles in large washers from clogging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904013487 DE4013487C2 (en) | 1990-04-27 | 1990-04-27 | Device for protecting the nozzles in large washers from clogging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4013487A1 DE4013487A1 (en) | 1991-10-31 |
| DE4013487C2 true DE4013487C2 (en) | 1994-06-30 |
Family
ID=6405233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904013487 Expired - Lifetime DE4013487C2 (en) | 1990-04-27 | 1990-04-27 | Device for protecting the nozzles in large washers from clogging |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4013487C2 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1977429U (en) * | 1967-01-18 | 1968-01-25 | Siemens Ag | DEVICE FOR SEPARATING SOLIDS FROM LIQUID STREAMS. |
| BE794289A (en) * | 1972-01-21 | 1973-05-16 | Siemens Ag | PROCEDURE FOR CLEANING A SIEVE INCORPORATED IN A PIPING AND DEVICE FOR ITS IMPLEMENTATION |
| DE3114818A1 (en) * | 1981-04-11 | 1982-11-04 | Heinz 4937 Lage Stricker | Perlator arrangement |
| DE3306003C2 (en) * | 1983-02-22 | 1985-02-28 | Taprogge GmbH, 4000 Düsseldorf | Filter device for the mechanical cleaning of a cooling water flow from power station condenser systems |
| US4654141A (en) * | 1983-10-12 | 1987-03-31 | Arneson Products, Inc. | In-line filter for a low pressure pool cleaning system |
| DK370084A (en) * | 1984-07-30 | 1986-01-31 | Danish Spray System Aps | SPRAYING OF WATER WITHOUT STEAM AND PRESSURE AIR |
| SE449449B (en) * | 1984-11-26 | 1987-05-04 | Bejaco Ab | PROCEDURE FOR INHIBITION OF FINE DISTRIBUTED LIQUID IN A GAS FLOW AND DEVICE FOR EXTENDING THE PROCEDURE |
| DE3536494A1 (en) * | 1985-10-12 | 1987-04-16 | Eberhard Hager | Apparatus for clarifying contact water |
| DE3633545A1 (en) * | 1986-10-02 | 1988-04-14 | Eberhard Hager | Apparatus for clarifying contact water |
| DE3712942A1 (en) * | 1987-04-16 | 1988-11-03 | Schulz Achim | Nozzle for spraying liquid |
| DE3742466C2 (en) * | 1987-12-15 | 1993-12-02 | Vorwerk Co Interholding | Mixing device in spray cans for mixing suspensions containing solids |
-
1990
- 1990-04-27 DE DE19904013487 patent/DE4013487C2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4013487A1 (en) | 1991-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8330 | Complete disclaimer |