EP2405138B1 - Pumpvorrichtung - Google Patents

Pumpvorrichtung Download PDF

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Publication number
EP2405138B1
EP2405138B1 EP11183329.9A EP11183329A EP2405138B1 EP 2405138 B1 EP2405138 B1 EP 2405138B1 EP 11183329 A EP11183329 A EP 11183329A EP 2405138 B1 EP2405138 B1 EP 2405138B1
Authority
EP
European Patent Office
Prior art keywords
cooling
plunger
cylinder
temperature
pumping device
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.)
Not-in-force
Application number
EP11183329.9A
Other languages
English (en)
French (fr)
Other versions
EP2405138A3 (de
EP2405138A2 (de
Inventor
Johann Carl Rudolf Van Der Hart
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.)
Jcr Van Der Hart Holding Bv
Original Assignee
Jcr Van Der Hart Holding Bv
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 Jcr Van Der Hart Holding Bv filed Critical Jcr Van Der Hart Holding Bv
Publication of EP2405138A2 publication Critical patent/EP2405138A2/de
Publication of EP2405138A3 publication Critical patent/EP2405138A3/de
Application granted granted Critical
Publication of EP2405138B1 publication Critical patent/EP2405138B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F04B9/109—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 plural pumping chambers
    • F04B9/111—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 plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—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 plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders

Definitions

  • the invention relates to a pumping device. Especially for pumping fluids which have been purified usually membrane pumps are applied.
  • membrane pumps are applied.
  • the advantages of a membrane pump are that there is a gas tight sealing or separation from the surrounding; because of that no contamination with foreign (gas) molecules will occur.
  • the pumping systems are expensive and complex.
  • manufacturers of pumps prescribe to only use a selection of pumpable media for their pumps, and to operate these pumps at a high pressure bandwidth.
  • a liquid and/or gas booster pump which works according to the plunger principle generates heat at the compression cycle. When pumping larger molecules, so much heat may here be generated that overheating can lead to unwanted situations.
  • a lubrication film which may be present in order to protect sealing rings may burn, resulting in the break-down of amongst others the plunger sealing, cylinder sealing, damage to the plunger and the cylinder wall, check valves and the like. Furthermore, the combustion products will gas out in the medium which is to be pumped and leads to contamination. With heavy loads on the booster pump, this risk will increase even further.
  • those booster pumps are equipped with cooling ribs or cycle air of the booster will be led into a double wall around the high pressure cylinder wall to allow it to cool down. Under standard circumstances this can be sufficient and it is defined that the operational temperatures of those systems remain within a band width of 30 to 90 degrees Celsius.
  • an active control of the compression chamber temperature and also of the medium to be pumped is important. For instance medium which become instable at higher temperature, which can reach an ignition temperature or which can come outside set boundaries.
  • US 1.185.412 A which is considered to be the closest prior art discloses an anesthesia arrangement having a pump device for returning preselected gaseous components from an expiration line of an anesthesia apparatus into a first pressure vessel.
  • the arrangement includes a second pressure vessel connected downstream of the first pressure vessel and a compressor for pumping the gaseous components from the first pressure vessel into the second pressure vessel.
  • the compressor and a cooling unit adjust the operating parameters of pressure and temperature so that at least the anesthetic agent is present in the liquid phase in the second pressure vessel.
  • the invention seeks to provide improved pumping devices.
  • the invention seeks or additionally aims to provide a pumping device which is suitable for pumping purified fluids like gases.
  • the invention therefore provides a pumping device according to claim 1.
  • the basic principle of the plunger booster pump is a composition of two rod coupled plungers, in which a large compressed air driven plunger drives the coupled smaller cylinder.
  • the amplification of the compression force will be used to pump medium at the other side of the booster.
  • plunger booster pump The basic principle of the pumping device, here also called plunger booster pump, comprises as explained an assembly of two rod coupled plungers, in which a larger, compressed air driven (“low pressure”) plunger drives a smaller, coupled (“high pressure”) plunger.
  • the amplified compression force is used to pump a fluid of the pumping device.
  • a breathing segment can be provided between both systems.
  • An active temperature control will allow a broader application of these pumping systems.
  • a cooling spiral around the high pressure cylinder This cooling spiral will be able to actively cool the compression chamber and the plunger.
  • the end part of the high pressure cylinder comprises a plate with several additional channels which are provided by us and because of which (with the help of some special coupling pieces, we can lead a second cooling conduit through; also the high pressure exit traject can be cooled because of this.
  • the first mentioned inner spiral cooling is to be applied tightly around the inner tube, in order to improve transmission of heat.
  • a temperature sensor (and possible redundant second sensor) are inserted. This will control a cooling valve in order to maintain the desired operating temperature through a programmable temperature controller.
  • cooling machine For the completion of the cooling system there is a (locally provided) cooling machine; In an embodiment it thus provides a stand alone cooling application or cooling device and does not need to be connected to an external cooling.
  • the invention further relates to a temperature control device for a pumping device as described above.
  • this device provides a reconstruction kit for an existing pump of the described type.
  • This kit comprises a cooling spiral, a casing for the high pressure cylinder, a temperature sensor and a control or monitoring unit as described above. Via the casing it is easy to notice leakage in the pump.
  • the invention further relates to a gas purifying device, especially for noble gasses like neon, krypton, xenon and the like, comprising a pumping device according to the invention.
  • Figure 1 shows a schedule of a pumping device 1 with a cooling provision.
  • a first low pressure plunger pump is provided with a first plunger in a first cylinder LP which is here mechanically coupled to a second plunger with a smaller surface area and which is moveable in the second cylinder HP.
  • the casing of the second cylinder HP is provided with a jacket or casing. This jacket or casing is provided with an inlet 2 for the fluid which need to be pumped, usually a gas, under pressure.
  • An active temperature control 6 will allow a broader application of such a pumping system 1.
  • the end part of the high pressure cylinder HP comprises a plate 11 in which a number of additional channels 31, as is shown in Figures 5 and 10 , are provided by us in order to provide a second cooling conduit 19, 19', 25, as is shown in Figures 8 and 7 (using special coupling parts 38, 39, 40, see Figure 14 ). Also, the high pressure outlet 3 can be cooled through this.
  • the first mentioned inner cooling spiral 18 is in the embodiment provided tightly around the inner tube or inner housing, see Figures 13 and 11 , in order to optimize heat transmission.
  • a temperature sensor 29 (and possibly a redundant second sensor 29 for securing purposes) have been provided, see Figures 3 and 9 .
  • This will, through a programmable temperature controller 6, control a cooling valve 7 in order to maintain the operational temperature within desired limits.
  • a small (locally provided) cooling device is provided; this thus relates to a stand alone cooling device and needs no connection to an external cooling, see Figure 4 .
  • the end plate 11 can functionally be provided with a circumferential groove provided with a sealing ring, for instance made of PTFE.
  • the rim of the outer tube can be provided with a groove which connects to the sealing ring.
  • one of the parts plate or outer tube can be provided with a sharp rim or edge which, when the parts are screwed tight or drawn tight, cut into one another and does provide sealing.

Landscapes

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

Claims (4)

  1. Pumpvorrichtung (1), umfassend einen ersten Niederdruckkolben, der eine erste Kolbenfläche hat und in einem ersten Zylinder (LP) nach oben und unten bewegt werden kann und mit einem zweiten Hochdruckkolben (34) funktional gekoppelt ist, der eine zweite, kleinere Kolbenfläche hat und in einem zweiten Zylinder (HP) bewegt werden kann, wobei der erste Kolben in Betrieb den zweiten Hochdruckkolben (34) antreibt, wodurch in Betrieb eine Verstärkung der Kompressionskraft zum Pumpen eines Fluids verursacht wird, weiterhin umfassend eine aktive Temperatursteuervorrichtung, wobei die aktive Temperatursteuervorrichtung eine Kühlwendel (18) umfasst, die den zweiten Zylinder (HP) umgebend angebracht ist, um in Betrieb die Kompressionskammer in dem zweiten Zylinder (HP) und den Kolben (34) aktiv zu kühlen, dadurch gekennzeichnet, dass sie weiterhin einen Temperatursensor (29) umfasst, der angebracht ist, um eine Temperatur aufzuzeichnen, die ein Kennzeichen für die Temperatur des zweiten Zylinders (HP) oder des zweiten Kolbens (34) ist, und der Temperatursensor wahlweise mit einer Temperatursteuereinheit (6) gekoppelt ist und ein Kühlventil (7) wahlweise mit dem Temperatursensor (6) gekoppelt und von diesem steuerbar ist, um in Betrieb eine eingestellte Temperatur des zweiten Zylinders (HP) beizubehalten.
  2. Pumpvorrichtung (1) nach Anspruch 1, weiterhin umfassend einen Endteil an dem Hochdruckzylinder (HP), umfassend eine Platte (11), in der eine Anzahl von Kanälen (27) ausgebildet ist, durch die eine zweite Kühlleitung (16) geführt ist und die mit der Kühlwendel (18) in Fluidkopplung steht.
  3. Pumpvorrichtung (1) nach Anspruch 1 oder 2, bei der die Kühlwendel (18) ein Innenrohr eng umgebend angebracht ist, um die Wärmeübertragung zu optimieren.
  4. Pumpvorrichtung (1) nach einem der Ansprüche 1 bis 3, weiterhin umfassend eine Kühlmaschine (8) zum Kühlen eines Fluids, wobei die Kühlmaschine (8) funktionstätig mit der Temperatursteuervorrichtung gekoppelt ist und in Fluidverbindung mit der Kühlwendel (18) steht, um in Betrieb Kühlfluid in der Kühlwendel (18) bereitzustellen.
EP11183329.9A 2009-01-28 2010-01-28 Pumpvorrichtung Not-in-force EP2405138B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2002460 2009-01-28
EP10152003.9A EP2224132B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP10152003.9A Division-Into EP2224132B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung
EP10152003.9A Division EP2224132B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung
EP10152003.9 Division 2010-01-28

Publications (3)

Publication Number Publication Date
EP2405138A2 EP2405138A2 (de) 2012-01-11
EP2405138A3 EP2405138A3 (de) 2012-10-03
EP2405138B1 true EP2405138B1 (de) 2015-03-11

Family

ID=42282846

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10152003.9A Active EP2224132B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung
EP11183329.9A Not-in-force EP2405138B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10152003.9A Active EP2224132B1 (de) 2009-01-28 2010-01-28 Pumpvorrichtung

Country Status (1)

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EP (2) EP2224132B1 (de)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US519225A (en) * 1894-05-01 Washinqton
GB190421436A (en) * 1904-10-06 1905-08-17 William Henry Northcott Improved Machinery for Compressing Gases and in connection therewith.
GB190823886A (en) * 1908-11-07 1909-03-11 Defries & Sons Ltd J Improvements in and relating to Compressors for Air and other Fluids.
GB191311996A (en) * 1913-05-22 1914-05-22 British Thomson Houston Co Ltd Improvements in and relating to Air and the like Compressors.
US1185412A (en) * 1913-07-29 1916-05-30 Gen Electric Compressor.
US2427616A (en) * 1944-10-05 1947-09-16 William F Mohler Fluid pressure system
US3405522A (en) * 1964-11-25 1968-10-15 Toyoda Machine Works Ltd Hydraulic motor control circuit
US4588424A (en) * 1984-10-16 1986-05-13 Heath Rodney T Fluid pumping system
ATE68037T1 (de) * 1985-10-10 1991-10-15 Anton Braun Rotationsgeschwindigkeitskontrolleinrichtung fuer maschinen mit veraenderlichem hub.
US4955195A (en) * 1988-12-20 1990-09-11 Stewart & Stevenson Services, Inc. Fluid control circuit and method of operating pressure responsive equipment
DE4411533C1 (de) * 1994-04-02 1995-04-06 Draegerwerk Ag Anästhesiegerät
GB0300018D0 (en) * 2003-01-02 2003-02-05 Uws Ventures Ltd Gas control

Also Published As

Publication number Publication date
EP2405138A3 (de) 2012-10-03
EP2224132A2 (de) 2010-09-01
EP2224132B1 (de) 2020-01-08
EP2224132A3 (de) 2011-03-23
EP2405138A2 (de) 2012-01-11

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