NO321183B1 - Pump piston device - Google Patents
Pump piston device Download PDFInfo
- Publication number
- NO321183B1 NO321183B1 NO20033447A NO20033447A NO321183B1 NO 321183 B1 NO321183 B1 NO 321183B1 NO 20033447 A NO20033447 A NO 20033447A NO 20033447 A NO20033447 A NO 20033447A NO 321183 B1 NO321183 B1 NO 321183B1
- Authority
- NO
- Norway
- Prior art keywords
- piston
- pump
- pressure
- liquid
- pump piston
- Prior art date
Links
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005553 drilling Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Description
ANORDNING VED PUMPESTEMPEL DEVICE AT PUMP PISTON
Foreliggende oppfinnelse vedrører et pumpestempel, særlig av det slaget som benyttes i stempelpumper for pumping av væsker. The present invention relates to a pump piston, particularly of the type used in piston pumps for pumping liquids.
I stempelpumper av kjent utførelse benyttes frem - og tilbakegående stempler med pakninger av gummi eller tilsvarende materiale som tetning mellom væsketrykket og atmosfærisk trykk. In piston pumps of known design, reciprocating pistons with seals of rubber or similar material are used as a seal between the liquid pressure and atmospheric pressure.
Disse pakningene utsettes for stor slitasje, spesielt nær væsken som pumpes inneholde mye forurensning og slitepartikler. These seals are exposed to a lot of wear and tear, especially near the fluid being pumped, which contains a lot of contamination and wear particles.
Ved boring etter olje - og gassforekomster benyttes stempelpumper til å pumpe ned boreslam under høyt trykk. Dette boreslammet inneholder mineralpartikler som gir ekstrem slitasje på stempelpakninger, med derav følgende kostnader. When drilling for oil and gas deposits, piston pumps are used to pump down drilling mud under high pressure. This drilling mud contains mineral particles that cause extreme wear on piston seals, with consequent costs.
I følge oppfinnelsen har en tatt sikte på å komme frem til en stempelutførelse som i vesentlig grad reduserer slitasjen på stempelpakningene. According to the invention, the aim has been to arrive at a piston design which significantly reduces wear on the piston seals.
Dette kan i henhold til oppfinnelsen oppnås ved å utføre stempelet todelt, med to pakninger i serie og slik at det mellom pakningene opprettholdes et væsketrykk med ren væske som til enhver tid er lik eller høyere enn væsketrykket som pumpes. According to the invention, this can be achieved by making the piston in two parts, with two seals in series and so that between the seals a liquid pressure is maintained with pure liquid which is at all times equal to or higher than the liquid pressure being pumped.
Med denne utførelsen vil pakningen mot forurenset væske få tilnærmet likt væsketrykk på begge sider og følgelig reduseres slitasjen vesentlig. With this design, the gasket against contaminated liquid will have approximately the same liquid pressure on both sides and, consequently, wear will be significantly reduced.
Den andre pakningen utsettes for fullt ensidig væsketrykk, men med ikke forurenset væske og får derved vesentlig økt levetid. The other gasket is exposed to full one-sided liquid pressure, but with uncontaminated liquid and thus gets a significantly increased service life.
Fra teknikkens stilling på området er det kjent løsninger der stempelet utføres med to sett pakninger og væskefylt mellomrom som settes under trykk for å redusere slitasjen på pakninger og stempel. From the state of the art in the area, solutions are known where the piston is made with two sets of gaskets and a liquid-filled space that is pressurized to reduce wear on the gaskets and piston.
Patent NO 311 737 Bl beskriver en slik løsning. Patent NO 311 737 Bl describes such a solution.
I denne stempelutførelsen er imidlertid ikke stempelet delt i to deler slik som i foreliggende oppfinnelse. Ved å utføre stempelet to delt kan stempelløsningen lettere bygges inn i eksisterende pumper, fordi trykkoppbyggingen mellom pakningene skjer i selve stempelet. In this piston design, however, the piston is not divided into two parts as in the present invention. By making the piston in two parts, the piston solution can be more easily integrated into existing pumps, because the pressure build-up between the seals takes place in the piston itself.
Patent DE 32 123 325 C2 og EP 694 139 Bl viser teknikkens stilling på området Oppfinnelsen skal nå forklares nærmere med henvisning til et utførelseseksempel vist i fig 1. Patent DE 32 123 325 C2 and EP 694 139 B1 show the state of the art in the area The invention will now be explained in more detail with reference to an embodiment shown in Fig. 1.
På tegningen angir 1 pumpehuset med forurenset væske som skal pumpes . In the drawing, 1 indicates the pump housing with contaminated liquid to be pumped.
Et todelt stempel bestående av en ytre del 3 og en indre del 2 er konsentrisk opplagret og gjennom bolten 11 med gjengeforbindelsen 14 forbundet til en frem - og tilbakegående bevegelse 12. A two-part piston consisting of an outer part 3 and an inner part 2 is concentrically supported and through the bolt 11 with the threaded connection 14 connected to a reciprocating movement 12.
Mellom pakningene 5 og 10 er det ren væske som holder et bestemt minimumstrykk. Dette trykket tilveiebringes av en pumpe 6 over en trykkreduseringsventil 7 . Between the gaskets 5 and 10 is pure liquid which maintains a certain minimum pressure. This pressure is provided by a pump 6 above a pressure reduction valve 7 .
I pumpeslaget vil tilbakeslagsventilen 8 lukke og væsketrykket mellom pakningene 10 og 5 blir like høyt som væsketrykket i mediet som pumpes. Pakning 5 utsettes for likt trykk på begge sider. Pakning 10 utsettes for ensidig væsketrykk lik trykket i det mediet som pumpes.. I sugeslaget etterfylles eventuell lekkasje gjennom tilbakeslagsventilen 8. During the pump stroke, the non-return valve 8 will close and the liquid pressure between the seals 10 and 5 will be as high as the liquid pressure in the medium being pumped. Gasket 5 is subjected to equal pressure on both sides. Gasket 10 is exposed to one-sided liquid pressure equal to the pressure in the medium being pumped. In the suction stroke, any leakage is replenished through the non-return valve 8.
Fjæren 13 og bolten 15 sørger for at ytre del av stempelet 3 alltid holdes i riktig posisjon. The spring 13 and the bolt 15 ensure that the outer part of the piston 3 is always held in the correct position.
4 angir en låse- og tetningsring. 4 indicates a locking and sealing ring.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20033447A NO321183B1 (en) | 2003-08-04 | 2003-08-04 | Pump piston device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20033447A NO321183B1 (en) | 2003-08-04 | 2003-08-04 | Pump piston device |
Publications (3)
Publication Number | Publication Date |
---|---|
NO20033447D0 NO20033447D0 (en) | 2003-08-04 |
NO20033447L NO20033447L (en) | 2005-02-07 |
NO321183B1 true NO321183B1 (en) | 2006-04-03 |
Family
ID=28036412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20033447A NO321183B1 (en) | 2003-08-04 | 2003-08-04 | Pump piston device |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO321183B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20091872L (en) * | 2009-05-13 | 2010-11-15 | Per Olav Haughom As | Device by pump piston |
-
2003
- 2003-08-04 NO NO20033447A patent/NO321183B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20091872L (en) * | 2009-05-13 | 2010-11-15 | Per Olav Haughom As | Device by pump piston |
WO2010131976A1 (en) * | 2009-05-13 | 2010-11-18 | Per Olav Haughom As | Pump piston device |
Also Published As
Publication number | Publication date |
---|---|
NO20033447L (en) | 2005-02-07 |
NO20033447D0 (en) | 2003-08-04 |
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Legal Events
Date | Code | Title | Description |
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CREP | Change of representative |
Representative=s name: HAMSO PATENTBYRA ANS POSTBOKS 171 SANDNES, 4302 NO |
|
MM1K | Lapsed by not paying the annual fees |