EP0580196B1 - Pumpe mit zum Teil hohlem Kolben - Google Patents

Pumpe mit zum Teil hohlem Kolben Download PDF

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Publication number
EP0580196B1
EP0580196B1 EP93201766A EP93201766A EP0580196B1 EP 0580196 B1 EP0580196 B1 EP 0580196B1 EP 93201766 A EP93201766 A EP 93201766A EP 93201766 A EP93201766 A EP 93201766A EP 0580196 B1 EP0580196 B1 EP 0580196B1
Authority
EP
European Patent Office
Prior art keywords
fluid
piston
chamber
high pressure
valve
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
Application number
EP93201766A
Other languages
English (en)
French (fr)
Other versions
EP0580196A1 (de
Inventor
Paul Buisine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sofitech NV
Original Assignee
Sofitech NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sofitech NV filed Critical Sofitech NV
Publication of EP0580196A1 publication Critical patent/EP0580196A1/de
Application granted granted Critical
Publication of EP0580196B1 publication Critical patent/EP0580196B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/125—Reciprocating valves

Definitions

  • the present invention relates to the technical domain of pumps and, especially, of high pressure or very high pressure pumps.
  • Such pumps are met, among other activities, in petroleum and related industries and in industrial cleaning industry and in civil engineering. These pumps are characterized in that their powers are very high, usually about 373 000 to 746 000 or 895 200 Joules/s (say, 500 to 1000 or 1200 CV) and in that they must convey very corrosive fluids (such as highly acid fluids) or very abrasive fluids (such as cement slurries for oil well cementing) or also special fluids such as fracturation gels in the petroleum industry, charged with propping agent (sand), and other particular fluids.
  • very corrosive fluids such as highly acid fluids
  • very abrasive fluids such as cement slurries for oil well cementing
  • special fluids such as fracturation gels in the petroleum industry, charged with propping agent (sand), and other particular fluids.
  • a pump of this type schematically consists of a "power end" and a “fluid end".
  • the power end comprises all the elements which are necessary for the piston displacements, and the piston.
  • the fluid end is a very high pressure end which schematically consists of a body forming the piston chamber, with its inlet valve and outlet valve, and a fluid discharge element.
  • the chamber comprises one (or several) inlet valve and one (or several) outlet valve.
  • valves are placed at the end of the chamber opposite to the free end of the piston.
  • the present invention is a determining improvement of such a type of "in line" fluid end.
  • the Fig. 1 shows prior art "in line” fluid ends.
  • the Fig. 2 shows a preferred embodiment of the invention.
  • the "in line” pump according to the prior art (Fig. 1) comprises a high pressure body (9), a high pressure chamber (2) and a solid piston (8).
  • the body and the piston have a filler joint (7) which must be submitted to the high pressure of the chamber (2).
  • the fluid end comprises an inlet valve (1) in form of a ring assembled on the return spring (5), at the chamber end which is nearest the piston, and an outlet valve (3) also assembled on a return spring (4).
  • the outlet valve is placed at the other end of the chamber (2) and can tightly close this end.
  • the inlet pipes (6) When the piston displaces in the direction (A) of the inlet, the fluid is drawed by suction in a known manner by the inlet pipes (6). These pipes comprise a tore for symmetrically distributing the fluid.
  • the valve (1) is pushed back and does not oppose the fluid inlet.
  • the chamber (2) When the piston arrives on the thrust, the chamber (2) is then filled with the fluid, which is retained by the valve (3) pushed on its seat (10) by the spring (4).
  • the joint (7) may not resist, or in badly manner, to the high pressure, which is a serious problem.
  • the fluid circulation at the inlet in the pipes (6) is as a high abrasion and a risk of mechanical rupture especially at the zone (12) occur.
  • the piston is itself modified and co-operates with a "in line" fluid end (Fig. 2).
  • the equipment according to the invention comprises a high pressure fluid end body (21), a low pressure body (22) delimiting with the piston (16) a low pressure chamber (24), a fluid inlet pipe (26) and a discharge pipe (20).
  • the high pressure body (21) delimites with the piston (16) a high pressure chamber (13).
  • the piston (16) is partially hollow at its extension (17) placed in front of the discharge pipe (20) (free end of the piston).
  • the said extension (17) determines in the body of the piston a high pressure chamber (19) which, to the rear, opens with an opening (or several) in the low pressure chamber (24), and, to the head (i.e. to the discharge pipe) comprises an inlet valve (15).
  • the inlet valve (26) opens in the low pressure chamber (24) and the discharge pipe (20) has an outlet valve (14).
  • a high pressure joint (23) makes the area between the high pressure chamber (13) and the low pressure chamber (24) around the piston tight.
  • a low pressure joint (25) makes the low pressure chamber (24) tight.
  • a known phenomenon implies a depression in the high pressure chamber (13).
  • the valve (15) becomes opened, the valve (14) becomes closed, and the fluid circulates from the low pressure chamber (24) to the chamber (19) through the opening or port (18) and, finally, to the chamber (13).
  • valve (15) When the piston pushes back in the direction (D), the valve (15) becomes closed, the fluid is compressed in the chamber (13) by the piston formed by the extension (17) filled with the fluid and closed by the valve (15), the valve (14) becomes opened and the fluid is ejected through the discharge pipe (20).
  • the present invention provides several advantages, all are very important and even decisive.
  • the dead volume may be lowered up to a very low volume, substantially equal to zero. This obviously has a positive effect on the volumetric efficiency of the high pressure pump.
  • the pipe (26)/chamber (24)/chamber (19)/chamber (13)/discharge (20) fluid circulation is substantially ideal from the point of view of the fluid hydrodynamic. Especially, the fluid has not to radically change its flow direction. This will obviously decrease the cavitation which especially occurs with viscosified fluids, and with high flow rates, as well as the abrasion process.
  • one or several pipes (26) may exist, including pipes with an annulus injection or a multi-point injection, as well as one or several openings (18) having an appropriate form.
  • the applications relate to especially all the high pressure pumps in all industries.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Reciprocating Pumps (AREA)

Claims (3)

  1. Inline-Pumpe, umfassend: wenigstens einen Kolben (16) mit einem Ende, das durch ein Antriebsende außerhalb des Pumpenfluids verlagert wird, und einem freien Ende, das innerhalb eines Fluid-Endes verlagert wird, welches einen Fluideinlaß (26), eine Kolbenkammer mit Einlaßventil und Außlaßventil umfaßt, und ein Fluid-Austragselement, wobei zwischen dem Kolben und dem Fluid-Ende eine Einlagedichtung (25) vorgesehen ist,
    dadurch gekennzeichnet, daß jeder Kolben (16) eine Hohlkammer (19) umfaßt, die über wenigstens eine Öffnung (18) mit einer Niederdruckkammer (24), und über ein Einlaßventil (15) mit einer Hochdruckkammer (13) in Verbindung steht, die durch ein Auslaßventil (14) verschlossen ist, welches sich in ein Austragselement (20) hinein öffnet, wobei eine Hochdruckdichtung (23) zwischen der Hochdruckkammer (13) und der Niederdruckkammer (24) vorgesehen ist, und die Einlagedichtung (25) deshalb eine Niederdruckdichtung ist.
  2. Verwendung der Pumpe nach Anspruch 1 für in der Mineralölindustrie und verwandten Industrien, in der Reinigungsindustrie oder in der Bauindustrie verwendete Hochdruckpumpen.
  3. Verwendung nach Anspruch 2 für das Pumpen von abrasiven Fluiden wie zementmilch.
EP93201766A 1992-07-20 1993-06-18 Pumpe mit zum Teil hohlem Kolben Expired - Lifetime EP0580196B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9209022A FR2693771B1 (fr) 1992-07-20 1992-07-20 Pompe comportant un piston partiellement creux, et ses applications notamment dans l'industrie pétrolière.
FR9209022 1992-07-20

Publications (2)

Publication Number Publication Date
EP0580196A1 EP0580196A1 (de) 1994-01-26
EP0580196B1 true EP0580196B1 (de) 1996-08-14

Family

ID=9432125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93201766A Expired - Lifetime EP0580196B1 (de) 1992-07-20 1993-06-18 Pumpe mit zum Teil hohlem Kolben

Country Status (6)

Country Link
EP (1) EP0580196B1 (de)
JP (1) JPH06167277A (de)
CA (1) CA2100837A1 (de)
DE (1) DE69304002T2 (de)
FR (1) FR2693771B1 (de)
NO (1) NO306223B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD691180S1 (en) 2012-04-27 2013-10-08 S.P.M. Flow Control, Inc. Center portion of a fluid cylinder for a pump
US8662865B2 (en) 2010-12-09 2014-03-04 S.P.M. Flow Control, Inc. Offset valve bore in a reciprocating pump
USD705817S1 (en) 2012-06-21 2014-05-27 S.P.M. Flow Control, Inc. Center portion of a fluid cylinder for a pump
USD706832S1 (en) 2012-06-15 2014-06-10 S.P.M. Flow Control, Inc. Fluid cylinder for a pump
WO2018183154A1 (en) * 2017-03-27 2018-10-04 Karcher North America, Inc. Hollow piston pump

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018801A1 (en) * 2000-08-25 2002-03-07 Rosenthal Stephen A Method and apparatus for joining seams
US6568925B2 (en) 2001-03-28 2003-05-27 Eric Gunderson Abrasive liquid pump apparatus and method
KR100442379B1 (ko) * 2001-10-15 2004-07-30 엘지전자 주식회사 왕복동식 압축기의 가스 흡입장치
JP2006329007A (ja) * 2005-05-24 2006-12-07 Meika Ryu 電流制御往復式流体圧送ユニット
JP5107651B2 (ja) * 2007-10-02 2012-12-26 タクボエンジニアリング株式会社 塗料供給用シリンジ
US8590614B2 (en) 2011-05-03 2013-11-26 Halliburton Energy Services, Inc. High pressure stimulation pump
USD687125S1 (en) 2011-08-19 2013-07-30 S.P.M. Flow Control, Inc. Fluid end
CN103161725A (zh) * 2011-12-16 2013-06-19 东台兴业股份有限公司 活塞式加压泵
WO2013116535A1 (en) 2012-02-01 2013-08-08 S.P.M. Flow Control, Inc. Pump fluid end with integrated web portion
CN102777373A (zh) * 2012-07-10 2012-11-14 镇江长城注浆设备有限公司 双液同步注浆泵
CN104696185A (zh) * 2015-03-20 2015-06-10 丹阳琦瑞机械有限公司 立式加电液泵
US11578710B2 (en) 2019-05-02 2023-02-14 Kerr Machine Co. Fracturing pump with in-line fluid end
US11560888B2 (en) 2019-05-14 2023-01-24 Halliburton Energy Services, Inc. Easy change pump plunger
US11739748B2 (en) 2019-05-14 2023-08-29 Halliburton Energy Services, Inc. Pump fluid end with easy access suction valve
US11231111B2 (en) 2019-05-14 2022-01-25 Halliburton Energy Services, Inc. Pump valve seat with supplemental retention
US10808846B1 (en) 2019-05-14 2020-10-20 Halliburton Energy Services, Inc. Pump plunger with wrench features
US11105327B2 (en) 2019-05-14 2021-08-31 Halliburton Energy Services, Inc. Valve assembly for a fluid end with limited access
US11441687B2 (en) 2019-05-14 2022-09-13 Halliburton Energy Services, Inc. Pump fluid end with positional indifference for maintenance
US11965503B2 (en) 2019-05-14 2024-04-23 Halliburton Energy Services, Inc. Flexible manifold for reciprocating pump
US11261863B2 (en) 2019-05-14 2022-03-01 Halliburton Energy Services, Inc. Flexible manifold for reciprocating pump
US11280326B2 (en) 2019-06-10 2022-03-22 Halliburton Energy Services, Inc. Pump fluid end with suction valve closure assist
US10808851B1 (en) 2019-06-10 2020-10-20 Halliburton Energy Services, Inc. Multi-material frac valve poppet
US10941766B2 (en) 2019-06-10 2021-03-09 Halliburton Energy Sendees, Inc. Multi-layer coating for plunger and/or packing sleeve
US10989188B2 (en) 2019-07-26 2021-04-27 Halliburton Energy Services, Inc. Oil field pumps with reduced maintenance
US10677380B1 (en) 2019-07-26 2020-06-09 Halliburton Energy Services, Inc. Fail safe suction hose for significantly moving suction port
US11530750B2 (en) 2019-12-24 2022-12-20 Halliburton Energy Services, Inc. Horizontal balanced guided valve
US11073144B1 (en) 2020-02-14 2021-07-27 Halliburton Energy Services, Inc. Pump valve assembly
US11002120B1 (en) 2020-02-28 2021-05-11 Halliburton Energy Services, Inc. Dynamic packing seal compression system for pumps
US10947967B1 (en) 2020-03-11 2021-03-16 Halliburton Energy Services, Inc. Discharge valve disabler and pressure pulse generator therefrom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR599965A (fr) * 1925-06-20 1926-01-27 C I Ingg Audoli Bertola Ab Pompe à faible débit pour installations domestiques
CH257522A (fr) * 1943-12-27 1948-10-15 Anonyme Messier Societe Pompe hydraulique.
GB672173A (en) * 1949-08-06 1952-05-14 Siam Improvements in or relating to reciprocating pumps

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8662865B2 (en) 2010-12-09 2014-03-04 S.P.M. Flow Control, Inc. Offset valve bore in a reciprocating pump
US8662864B2 (en) 2010-12-09 2014-03-04 S.P.M. Flow Control, Inc. Offset valve bore in a reciprocating pump
US8668470B2 (en) 2010-12-09 2014-03-11 S.P.M. Flow Control, Inc. Offset valve bore for a reciprocating pump
USD691180S1 (en) 2012-04-27 2013-10-08 S.P.M. Flow Control, Inc. Center portion of a fluid cylinder for a pump
USD706832S1 (en) 2012-06-15 2014-06-10 S.P.M. Flow Control, Inc. Fluid cylinder for a pump
USD705817S1 (en) 2012-06-21 2014-05-27 S.P.M. Flow Control, Inc. Center portion of a fluid cylinder for a pump
WO2018183154A1 (en) * 2017-03-27 2018-10-04 Karcher North America, Inc. Hollow piston pump

Also Published As

Publication number Publication date
FR2693771A1 (fr) 1994-01-21
CA2100837A1 (en) 1994-01-21
DE69304002D1 (de) 1996-09-19
JPH06167277A (ja) 1994-06-14
FR2693771B1 (fr) 1994-09-23
NO932609D0 (no) 1993-07-19
DE69304002T2 (de) 1997-03-13
NO932609L (no) 1994-01-21
EP0580196A1 (de) 1994-01-26
NO306223B1 (no) 1999-10-04

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