DK162404B - PRESSURE-DRIVE Piston Pump - Google Patents

PRESSURE-DRIVE Piston Pump Download PDF

Info

Publication number
DK162404B
DK162404B DK533089A DK533089A DK162404B DK 162404 B DK162404 B DK 162404B DK 533089 A DK533089 A DK 533089A DK 533089 A DK533089 A DK 533089A DK 162404 B DK162404 B DK 162404B
Authority
DK
Denmark
Prior art keywords
pump
piston
cylinder
drive
pressure
Prior art date
Application number
DK533089A
Other languages
Danish (da)
Other versions
DK162404C (en
DK533089D0 (en
DK533089A (en
Inventor
Niels Borre
Original Assignee
Aircom Aps
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 Aircom Aps filed Critical Aircom Aps
Priority to DK533089A priority Critical patent/DK162404C/en
Publication of DK533089D0 publication Critical patent/DK533089D0/en
Priority to AU66482/90A priority patent/AU6648290A/en
Priority to PCT/DK1990/000275 priority patent/WO1991006761A1/en
Publication of DK533089A publication Critical patent/DK533089A/en
Publication of DK162404B publication Critical patent/DK162404B/en
Application granted granted Critical
Publication of DK162404C publication Critical patent/DK162404C/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Description

DK 162404BDK 162404B

iin

Den foreliggende opfindelse angår en stempelpumpe omfattende en pumpecylinder med et pumpestempel og en i forlængelse af pumpecylinderen placeret drivcylinder med et drivstempel, der er monteret på en for dette og pumpestemp-5 let fælles stempelstang, og hvor en af stempelstangens bevægelse reguleret ventilglider er indrettet til at styre en tilførsel af trykmedium til skiftevis den ene og den anden side af drivstemplet.The present invention relates to a piston pump comprising a pump cylinder with a pump piston and an extension cylinder located in the pump cylinder with a drive piston mounted on a common piston rod for this and the pump piston, and in which a valve slider controlled by the movement of the piston rod is arranged for controlling a supply of pressure medium to alternately one and the other side of the drive piston.

Fra fransk patentskrift nr. 1.553.947 kendes en 10 luftdrevet pumpe med en enkeltvirkende pumpecylinder og en dobbeltvirkende drivcylinder. Dersom pumpen skal præstere et pumpetryk, der er højere end det lufttryk, der er til rådighed, kan den normalt udformes med et større stempelareal end pumpecylinderen og dermed udøve en tilstrækkelig stor kraft 15 på stempelstangen. En sådan løsning er imidlertid ikke anvendelig, dersom pumpen skal være nedsænkelig i et snævert borerør, og i dette skal løfte en væskesøjle, der er tungere end det tryk, som kan præsteres af drivcylinderen med den givne diameter og det givne lufttryk.From French Patent Specification No. 1,553,947, an air-driven pump with a single-acting pump cylinder and a double-acting drive cylinder is known. If the pump is to produce a pump pressure higher than the available air pressure, it can normally be designed with a larger piston area than the pump cylinder and thus exert a sufficiently large force 15 on the piston rod. However, such a solution is not applicable if the pump is to be submerged in a narrow drill pipe, and in this must lift a liquid column heavier than the pressure which can be exerted by the driven cylinder of the given diameter and the given air pressure.

20 Det er opfindelsens formål at tilvejebringe en pumpe af den indledningsvis nævnte art, hvor den kraft, der er til rådighed til bevægelse af pumpestemplet, tilnærmelsesvis kan fordobles i det væsentlige uden at forøge pumpens ydre dimensioner.It is an object of the invention to provide a pump of the kind mentioned above, where the force available for moving the pump piston can be substantially doubled without increasing the external dimensions of the pump.

25 I henhold til opfindelsen opnås dette ved, at pumpen er ejendommelig ved, at pumpecylinderen er enkeltvirkende og at tilførslen af trykmedium i pumpeslaget er således udformet, at der tillige tilføres trykmedium til pumpestemlets bagside. Under pumpeslaget, ved hvilket væskesøjlen skal 30 løftes, udnyttes ikke blot drivstemplets areal til tilvejebringelse af den nødvendige kraft på pumpestemplet, men tillige udnyttes pumpestemplets bagside. Der opnås derved tilnærmelsesvis en fordobling af kraften på pumpestemplet ved et givet tryk på drivmediet. Under 35 returslaget er der ikke behov for en forøgelse af drivkraften, og dér er den kraft, som den ordinære drivcylinder kan afgive, tilstrækkelig.According to the invention, this is achieved by the fact that the pump is characterized in that the pump cylinder is single-acting and that the supply of pressure medium in the pump stroke is designed so that pressure medium is also fed to the back of the pump body. During the pump stroke, at which the liquid column is to be lifted, not only the area of the drive piston is utilized to provide the necessary force on the pump piston, but also the rear of the pump piston is utilized. Thereby, approximately a doubling of the force on the pump piston is obtained at a given pressure on the drive medium. During the return stroke, there is no need for an increase in the driving force, and there the power that the ordinary drive cylinder can deliver is sufficient.

Opfindelsen skal i det følgende beskrives nærmere un-The invention will be described in more detail below.

DK 162404 BDK 162404 B

2 der henvisning til tegningen, på hvilken der er vist en pumpe ifølge opfindelsen i længdesnit.2 with reference to the drawing, in which a pump according to the invention is shown in longitudinal section.

Pumpen ifølge opfindelsen omfatter et yderrør 1, der ved den nederste ende er lukket af et endedæksel med et ind-5 løb 3 for den væske·, der skal pumpes. Indløbet er forsynet med en kontraventil i form af en ventilklap 4, der holdes på plads ved hjælp af et endestykke 5 på en drivcylinder 6. Drivcylinderen har en cylindervæg i form af et rør 7 med noget mindre diameter end det ydre rør 1 og et stempel 8. En-10 destykket rummer en kanal 9, der tillader væske at passere fra kontraventilen til det annulære mellemrum mellem røret 1 og cylinderrøret 7. I endestykket er der desuden en anden kanal 10, der muliggør indføring af drivmedium i rummet under stemplet 8. Den anden ende af drivcylinderen 6 er afluk-15 ket af et mellemstykke 11, der er indskudt i røret 1. Mellemstykket 11 har udskæringer (ikke vist), der danner passa- . ge for væske langs indersiden af røret 1, og desuden har mellemstykket kanaler 12 og 13, der danner forbindelse for drivmedium ind til henholdsvis cylinderen 6 og en pumpecy-20 linder 14, der er anbragt i forlængelse af cylinderen 6-. Cy- -linderen 14 har på lignende måde som cylinderen 6 en cylindervæg i form af et rør 15 og et stempel 16. Cylinderen 14 er ved den anden ende afsluttet ved hjælp af et øvre endestykke 17, der ligesom mellemstykket er forsynet med indskæ-25 ringer, der tillader passage af væske langs indersiden af røret 1.The pump according to the invention comprises an outer tube 1 closed at the lower end by an end cap with an inlet 3 for the liquid to be pumped. The inlet is provided with a non-return valve in the form of a valve flap 4 which is held in place by an end piece 5 on a drive cylinder 6. The drive cylinder has a cylinder wall in the form of a tube 7 of somewhat smaller diameter than the outer tube 1 and a piston. 8. The one-10 nozzle contains a channel 9 which allows fluid to pass from the check valve to the annular space between the tube 1 and the cylinder tube 7. In addition, there is another channel 10 in the end piece which allows the introduction of propellant into the space under the piston 8. The other end of the drive cylinder 6 is closed by a spacer 11 inserted into the tube 1. The spacer 11 has cutouts (not shown) forming the passageway. fluid, along the inside of the tube 1, and furthermore the spacer has channels 12 and 13 which form the drive medium connection to the cylinder 6 and a pump cylinder 20, respectively, which is arranged in extension of the cylinder 6-. Cy-cylinder 14, similar to cylinder 6, has a cylinder wall in the form of a tube 15 and a piston 16. The cylinder 14 is terminated at the other end by an upper end piece 17 which, like the intermediate piece, is provided with a cut-in 25. rings which allow passage of liquid along the inside of the tube 1.

De to stempler 8 og 16 er forbundet ved hjælp af en fælles stempelstarig 18, der er ført gennem mellemstykket 11 med en tætning, der forhindrer drivmedium i at trænge fra 30 den ene cylinder til den anden. Stempelstangen 18 har en forlængelse 19 opefter, hvilken forlængelse er forsynet med et anslag 20, der tjener til styring af en ventilglider 22. Ventilglideren er placeret i et ventilhus 23, der ligesom endestykkerne er forsynet med udtagninger, der tillader væ-35 skepassage langs indersiden af røret 1. Ventilglideren 22 har form som et ved den øverste ende 24 lukket rør med tre rundtgående noter 25,26,27, der samvirker med kanaler i ventilhuset til styring af drivmediet til og fra drivcylinde- 3The two pistons 8 and 16 are connected by means of a common piston pin 18 which is passed through the intermediate piece 11 with a seal which prevents the drive medium from penetrating from one cylinder to the other. The piston rod 18 has an extension 19 upwards, which extension is provided with a stop 20 which serves to control a valve slide 22. The valve slide is located in a valve housing 23 which, like the end pieces, is provided with recesses that allow fluid passage along the inside of the tube 1. The valve slider 22 is in the form of a tube closed at the upper end 24 with three circumferential grooves 25,26,27 which cooperate with channels in the valve housing for controlling the drive medium to and from the drive cylinder.

DK 162404 BDK 162404 B

ren. I ventilgliderens på tegningen viste nederste stilling er der forbindelse ved hjælp af noten 26 fra en indløbskanal 28 for drivmedium til en forbindelsesledning 29, der er forbundet med kanalen 13 i mellemstykket og kanalen 10 i ende-5 stykket 5. Desuden er der forbindelse via noten 25 mellem en forbindelsesledning 30 til en udløbskanal 31. Rummet over stemplet 8 er i forbindelse med udløbsskanalen 31, og såvel rummet under stemplet 8 som rummet under stemplet 16 er i forbindelse med indløbskanalen for trykmedium. Stempelstan-10 gen vil derfor bevæge sig opefter med en kraft, der i det væsentlige er den dobbelte af, hvad drivcylinderen kan præstere. Væske, som befinder sig på oversiden af pumpestemplet, vil derfor blive presset ud af pumpecylinderen 14 og blive presset opefter forbi ventilhuset til det øverste dæk-15 sel 32, der er forsynet med en kontraventil 33 i et væskeudløb 34. De to endedæksler kan være forbundet ved hjælp af et antal gennemgående stagbolte, der sammenholder pumpen og sikrer aksial sammenspænding af cylinderrør og endestykker osv.clean. In the lower position of the valve slider shown in the drawing, there is a connection by means of the groove 26 from an inlet channel 28 for drive medium to a connecting line 29 which is connected to the channel 13 in the intermediate piece and the channel 10 in the end piece 5. Furthermore, there is connection via the groove 25 between a connection line 30 to an outlet channel 31. The space above the piston 8 is in communication with the outlet channel 31, and both the space under the piston 8 and the space under the piston 16 are in communication with the inlet channel for the pressure medium. Therefore, the piston rod will move upward with a force substantially double that of the drive cylinder. Fluid located on the upper side of the pump piston will therefore be squeezed out of the pump cylinder 14 and pressed upwardly past the valve housing of the upper cover seal 32 provided with a check valve 33 in a liquid outlet 34. The two end caps may be connected by means of a plurality of through-rod bolts connecting the pump and ensuring axial tightening of cylinder pipes and end pieces, etc.

20 Når stemplet er presset op i sin øverste stilling, rammer anslaget 20 endevæggen i ventilglideren 22, hvorved denne føres op i den øverste stilling, i hvilken forbindelsesledningen via noten 27 sættes i forbindelse med udløbskanalen 31 og indløbskanalen via noten 26 med forbindelsesled-25 ningen 30. Der tilføres nu tryk til oversiden af drivstemplet 8, hvorved stempelstangen føres nedefter, indtil anslaget 20 rammer et endestop 35 på ventilgliderens 22 nederste ende. Herefter fortsætter pumpens drift med et nyt arbejds-slag. På grund af, at der under arbejdsslaget tilføres tryk-30 medium til begge de cylinderrum, som grænser op til stemplernes underside, vil pumpen ifølge opfindelsen kunne yde et højt tryk i arbejdsslaget og dermed en stor løftehøjde. Pumpen har, fordi de to cylindre er anbragt i forlængelse af hinanden, en forholdsvis lille diameter og er derfor veleg-35 net som til brug som neddykket pumpe i snævre brønde.20 When the piston is pressed into its upper position, the stop 20 strikes the end wall of the valve slider 22, which leads it into the upper position, in which the connecting conduit via the groove 27 is connected to the outlet duct 31 and the inlet duct via the groove 26 with the connecting conduit 25 30. Pressure is now applied to the upper side of the drive piston 8, whereby the piston rod is moved downwards until the stop 20 hits an end stop 35 on the lower end of the valve slider 22. Thereafter, the pump operation continues with a new work stroke. Due to the fact that, during the working stroke, pressure medium is supplied to both of the cylinder compartments adjacent to the underside of the pistons, the pump according to the invention will be able to provide a high pressure in the working stroke and thus a high lifting height. The pump, because the two cylinders are arranged in extension of each other, has a relatively small diameter and is therefore suitable as for use as a submersible pump in narrow wells.

Det beskrevne udførelseseksempel tjener alene til at illustrere det grundlæggende princip i pumpen. Inden for opfindelsens rammer kan placeringen af pumpecylinderen og densThe described embodiment only serves to illustrate the basic principle of the pump. Within the scope of the invention, the location of the pump cylinder and its position can be determined

4 DK 162404 B4 DK 162404 B

ventiler ændres, ligesom udformningen af ventilglideren kan modificeres til opnåelse af et ændret ventildiagram. Eventuelt kan der anvendes separate kanaler til indløb og udløb fra de enkelte afsnit af cylindrene og tilsvarende fuldstæn-5 digt adskilte ventilglidere eller drejeventiler til styring af indløb og udløb. Ved et sådant arrangement kan den periode, i hvilken der indføres drivmedium i drivcylinderen, forkortes, uden at en tilsvarende forkortelse af udløbsperioden finder sted.valves are changed, and the design of the valve slider can be modified to obtain a changed valve diagram. Optionally, separate channels can be used for inlet and outlet from the individual sections of the cylinders and correspondingly completely separate valve slides or rotary valves for controlling inlet and outlet. In such an arrangement, the period during which propellant medium is introduced into the drive cylinder can be shortened without a corresponding shortening of the expiry period.

1010

Claims (1)

DK 162404 B 5 Trykmediumdrevet stempelpumpe omfattende en pumpecy-5 linder med et pumpestempel og en i forlængelse af pumpecylinderen placeret drivcylinder med et drivstempel, der er monteret på en for dette og pumpestemplet fælles stempelstang, og hvor en af stempelstangens bevægelse reguleret ventilglider er indrettet til at styre en tilførsel af tryk-10 medium til skiftevis den ene og den anden side af drivstemplet, kendete g- net ved, at pumpecylinderen er enkeltvirkende og at tilførslen af trykmedium i pumpeslaget er således udformet, at der tillige tilføres trykmedium til pumpestemplets bagside. 15 20 25DK 162404 B 5 Pressure medium driven piston pump comprising a pump cylinder 5 with a pump piston and an extension cylinder located in the pump cylinder with a drive piston mounted on a common piston rod for this and the pump piston, and in which a valve slider regulated by the movement of the piston rod is arranged. controlling a supply of pressure medium to alternately one and the other side of the drive piston, known by the fact that the pump cylinder is single-acting and that the supply of pressure medium in the pump stroke is designed so that pressure medium is also fed to the back of the pump piston. 15 20 25
DK533089A 1989-10-26 1989-10-26 PRESSURE-DRIVE Piston Pump DK162404C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK533089A DK162404C (en) 1989-10-26 1989-10-26 PRESSURE-DRIVE Piston Pump
AU66482/90A AU6648290A (en) 1989-10-26 1990-10-25 Piston pump
PCT/DK1990/000275 WO1991006761A1 (en) 1989-10-26 1990-10-25 Piston pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK533089 1989-10-26
DK533089A DK162404C (en) 1989-10-26 1989-10-26 PRESSURE-DRIVE Piston Pump

Publications (4)

Publication Number Publication Date
DK533089D0 DK533089D0 (en) 1989-10-26
DK533089A DK533089A (en) 1991-04-27
DK162404B true DK162404B (en) 1991-10-21
DK162404C DK162404C (en) 1992-03-16

Family

ID=8141563

Family Applications (1)

Application Number Title Priority Date Filing Date
DK533089A DK162404C (en) 1989-10-26 1989-10-26 PRESSURE-DRIVE Piston Pump

Country Status (3)

Country Link
AU (1) AU6648290A (en)
DK (1) DK162404C (en)
WO (1) WO1991006761A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159907A1 (en) * 2015-04-02 2016-10-06 Ozdemir Bertan Compressed gas engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE862562C (en) * 1950-06-25 1953-01-12 Carl Schmidt Reversal for piston engines
DE883236C (en) * 1950-10-27 1953-07-16 Werner Sandmann Double-acting piston feed pump with pressure medium drive
FR1553947A (en) * 1967-12-06 1969-01-17
US4102609A (en) * 1975-09-12 1978-07-25 Wood's Powr-Grip Co., Inc. Valve control system for air powered vacuum pump

Also Published As

Publication number Publication date
DK162404C (en) 1992-03-16
AU6648290A (en) 1991-05-31
DK533089D0 (en) 1989-10-26
DK533089A (en) 1991-04-27
WO1991006761A1 (en) 1991-05-16

Similar Documents

Publication Publication Date Title
US2296647A (en) Hydraulic pressure booster
US3818805A (en) Piston and cylinder apparatus with cleaning arrangement
US2948224A (en) Hydraulic pump
US4462763A (en) Hydraulic pump jack
EP0118497B1 (en) Hydraulically actuated bore and well pump
DK162404B (en) PRESSURE-DRIVE Piston Pump
US2708411A (en) Control mechanisms
US3175513A (en) Hydraulic pumping unit
US2527184A (en) Pump for raising petroleum and other liquids from deep wells
US2329044A (en) Dual cylinder
NO300232B1 (en) Pressure Amplifier (A)
US4424012A (en) In-line fluid pump and shuttle valve therefor
ES358285A1 (en) Hydraulic cylinders having a quick exhaust
GB2051635A (en) Hydraulic multi-cylinder press
US3109379A (en) Subsurface pump
US2134465A (en) Compressed air deep well pump
US305972A (en) Axel sjogeen
GB1137538A (en) Improvements in or relating to hydraulic pressure intensifiers
US2490000A (en) Fluid pressure motor with piston actuated pilot control means
SU1035281A1 (en) Hydraulic drive for set of sucker-rod well pumps
US2933043A (en) Well pump
US2028067A (en) Vertical double action pump
SU964177A1 (en) Powered support
DK159857B (en) Pump for liquid and gases
SU901491A1 (en) Device for deflection of cutting screws

Legal Events

Date Code Title Description
PBP Patent lapsed