DE3227747A1 - PISTON PUMP HEAD OF A HIGH PRESSURE PISTON PUMP - Google Patents
PISTON PUMP HEAD OF A HIGH PRESSURE PISTON PUMPInfo
- Publication number
- DE3227747A1 DE3227747A1 DE19823227747 DE3227747A DE3227747A1 DE 3227747 A1 DE3227747 A1 DE 3227747A1 DE 19823227747 DE19823227747 DE 19823227747 DE 3227747 A DE3227747 A DE 3227747A DE 3227747 A1 DE3227747 A1 DE 3227747A1
- Authority
- DE
- Germany
- Prior art keywords
- piston pump
- pump head
- pressure
- high pressure
- pressure piston
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
Description
- * « WVw- * «WVw
BASF AMitngtMUacteft '*' BASF AMitngtMUacteft '*' O. Z. 0050/36052 OZ 0050/36052
Die Erfindung betrifft einen Kölbenpumpenkopf einer Hochdruckkolbenpumpe mit mechanischem oder hydraulischem Antrieb für Förderdrucke oberhalb 2000 bar.The invention relates to a piston pump head of a high pressure piston pump with mechanical or hydraulic drive for delivery pressures above 2000 bar.
Um dünnviskose, nlchtschmierende Flüssigkeiten auf hohe Drucke, speziell auf Drucke oberhalb 2000 bar zu fördern, werden sowohl Hochdruckkolbenpumpen als auch Hochdruckmembranpumpen verwendet.To convey thin viscous, non-lubricating liquids to high pressures, especially to pressures above 2000 bar, Both high-pressure piston pumps and high-pressure diaphragm pumps are used used.
Bei beiden Pumpentypen treten jedoch bei der Förderung dünnviskoser, nlchtschmierender Flüssigkeiten auf Drucke oberhalb 2000 bar Nachteile auf, so beispielsweise bei Hochdruckmembranpumpen zu kurze Standzeiten im Dauerbetrieb, hervorgerufen durch Bruch der Membranen. Der Nachteil bei langsam laufenden Hochdruckkolbenpumpen (Hubzahl kleiner 60 min" ) wiederum ist der lange Stillstand des Kolbens am Ende des Druckhubs und damit die Unterbrechung des Förderstroms. Gerade dieser Nachteil wirkt sich bei der Dosierung von Katalysatoren bei der Synthese von Hochdruckpolyethylen besonders negativ aus. Diese langsam laufenden Aggregate werden jedoch deshalb verwendet, weil die Maschinenteile geringer belastet werden und damit die Lebensdauer dieser Hochdruckkolbenpumpen erhöht wird. Beispielsweise entsteht in der Stopfbüchse aus Weichstoffen weniger Reibungswärme und damit geringerer Verschleiß. Gleichzeitig sind die durch extreme Druckamplituden hochbelasteten drucktragenden Teile - insbesondere der Kolbenpumpenkopf - pro Zeiteinheit weniger belastet. Diese langsam laufenden Hochdruckkolbenpumpen sind in ihrer Bauweise jedoch sehr groß und damit teuer.With both types of pumps, however, pressures occur when pumping thin-viscous, non-lubricating liquids Above 2000 bar there are disadvantages, for example with high-pressure diaphragm pumps too short downtimes in continuous operation, caused by rupture of the membranes. The disadvantage of slow-running high-pressure piston pumps (number of strokes less than 60 min ") is the long standstill of the piston at the end of the pressure stroke and thus the interruption of the flow rate. It is precisely this disadvantage that affects the metering of catalysts in the synthesis of high pressure polyethylene is particularly negative. However, these slow-running units are used because the machine parts are less stressed and thus the service life of these high-pressure piston pumps increases will. For example, there is less frictional heat in the stuffing box made of soft materials and therefore less Wear and tear. At the same time, they are due to extreme pressure amplitudes highly stressed pressure-bearing parts - especially the piston pump head - less per unit of time burdened. However, these slow-running high-pressure piston pumps are very large in their construction and therefore expensive.
Deshalb war es Aufgabe der Erfindung, die Hochdruckkolbenpumpen so weiterzuentwlckeln, daß - bei Vermeidung obigerIt was therefore an object of the invention to develop the high-pressure piston pumps to continue to develop in such a way that - if the above is avoided
BASF Aktiengesellschaft -2^.3, 0.2.0050/36052BASF Aktiengesellschaft -2 ^ .3, 0.2.0050 / 36052
** Nachtelle - dünnviskose, nlchtschmierende Flüssigkeiten gegen Drucke oberhalb 2000 bar gefördert werden können, d.h. schnell laufende Triebwerke (Hubzahl größer 60 min ) zu verwenden, um die Bauweise zu verkleinern und gleichzeitig die Standzeiten der Hochdruckkolbenpumpen im Dauerbetrieb zu erhöhen. Um letzteres zu erreichen, müssen insbesondere die Verschleißerscheinungen im Kolbenpumpenkopf reduziert bzw. vermieden werden.** A disadvantage - thin viscous, non-lubricating liquids can be conveyed against pressures above 2000 bar, i.e. to use high-speed engines (number of strokes greater than 60 min) in order to reduce the size of the construction and at the same time to increase the service life of the high-pressure piston pumps in continuous operation. To achieve the latter, you have to in particular the signs of wear in the piston pump head can be reduced or avoided.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Kolbenpumpenkopf aus auslagerungshärtbarem Stahl gefertigt ist. Dies sind Stähle mit speziellen Legierungselementen, welche auf der Grundlage einer intermetallischen Verbindung durch Auslagern des fertig bearbeiteten Teils bei 48O°C bis 600°C unter Inertgas ihre hohe Festigkeit bei ausreichender Zähigkeit und Korrosionsbeständigkeit erreichen. Speziell wird der Stahl 1.4534 verwendet und bei 54O0C ausgelagert.This object is achieved according to the invention in that the piston pump head is made of age hardenable steel. These are steels with special alloy elements which, on the basis of an intermetallic compound, achieve their high strength with sufficient toughness and corrosion resistance by aging the finished part at 480 ° C to 600 ° C under inert gas. Specifically, the steel 1.4534 is used and aged at 54O 0 C.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß bei Verwendung schnellaufender Hochdruckkolbenpumpen (Hubzahl größer 60 min" ) zur Förderung dünnvisko-er, nlchtschmierender Flüssigkeiten gegen Drucke oberhalb 2000 bar deutlich längere Standzeiten im Dauerbetrieb erreicht werden konnten.The advantages achieved by the invention are in particular that when using high-speed high-pressure piston pumps (Number of strokes greater than 60 min ") for conveying thinly viscous, non-lubricating liquids against pressure significantly longer service lives in continuous operation could be achieved above 2000 bar.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823227747 DE3227747A1 (en) | 1982-07-24 | 1982-07-24 | PISTON PUMP HEAD OF A HIGH PRESSURE PISTON PUMP |
| EP19830107022 EP0101876A1 (en) | 1982-07-24 | 1983-07-18 | Piston pump head of a high pressure piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823227747 DE3227747A1 (en) | 1982-07-24 | 1982-07-24 | PISTON PUMP HEAD OF A HIGH PRESSURE PISTON PUMP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3227747A1 true DE3227747A1 (en) | 1984-01-26 |
Family
ID=6169272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823227747 Withdrawn DE3227747A1 (en) | 1982-07-24 | 1982-07-24 | PISTON PUMP HEAD OF A HIGH PRESSURE PISTON PUMP |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0101876A1 (en) |
| DE (1) | DE3227747A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6223304B1 (en) | 1998-06-18 | 2001-04-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Synchronization of processors in a fault tolerant multi-processor system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2779295A (en) * | 1951-01-31 | 1957-01-29 | Ici Ltd | High pressure pump |
| US2841092A (en) * | 1955-08-09 | 1958-07-01 | Milton Roy Co | High-pressure pump |
-
1982
- 1982-07-24 DE DE19823227747 patent/DE3227747A1/en not_active Withdrawn
-
1983
- 1983-07-18 EP EP19830107022 patent/EP0101876A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0101876A1 (en) | 1984-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8130 | Withdrawal |