EP2224132A2 - Dispositif de pompage - Google Patents

Dispositif de pompage Download PDF

Info

Publication number
EP2224132A2
EP2224132A2 EP10152003A EP10152003A EP2224132A2 EP 2224132 A2 EP2224132 A2 EP 2224132A2 EP 10152003 A EP10152003 A EP 10152003A EP 10152003 A EP10152003 A EP 10152003A EP 2224132 A2 EP2224132 A2 EP 2224132A2
Authority
EP
European Patent Office
Prior art keywords
plunjer
cylinder
pumping device
cooling
fluid
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.)
Granted
Application number
EP10152003A
Other languages
German (de)
English (en)
Other versions
EP2224132A3 (fr
EP2224132B1 (fr
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
Priority to EP11183329.9A priority Critical patent/EP2405138B1/fr
Publication of EP2224132A2 publication Critical patent/EP2224132A2/fr
Publication of EP2224132A3 publication Critical patent/EP2224132A3/fr
Application granted granted Critical
Publication of EP2224132B1 publication Critical patent/EP2224132B1/fr
Active 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.
  • 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 bum, 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.
  • 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.
  • the invention seeks to provide improved pumping devices.
  • the invention therefore provides a pumping device according to claim 1.
  • the invention further provides a pumping device according to claim 5.
  • 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.
  • this chamber in an embodiment is pressure controlled coupled to the fluid which need to be pumped.
  • 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.
  • a breathing segment is peovided between both systems, we can fill this breathing segment or chamber with a part of the medium to be pumped, like a gas, and keep (and maintain) it at a small overpressure (by means of a regulator). Due to this, pressure fluctuations which may occur can be facilitated using a relatively small expansion vessel.
  • a second leaking in could be possible because of failure of sealings at the compression side of the high pressure cylinder tube, and due to this false air can be sucked in.
  • a controller can be included which monitors if the set pressure values in the breathing segments of the double cylinder wall of the high pressure cylinder does not become too high or too low. This can indicate starting sealing problems and can be reported before unwanted situations occur.
  • This modification will therefore not only provide a preservation of the purity of the medium to be pumped, it also prevents potentially dangerous mixtures (which will furthermore be compressed), it allows to monitor and report the mechanical status of the plunger booster pump.
  • 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 as described in the description.
  • a gas purifying device especially for noble gasses like neon, krypton, xenon and the like
  • a pumping device as described in the description.
  • it relates to a device as described in earlier patent application PCT/NL2008/050332 of the current applicant.
  • This patent application is referred to as if fully set forth in this description. It may be clear that there are several aspects mentioned in this patent application which can be combined and/or separately qualified for a divisional patent application.
  • Figure 1 shows a schedule of a pumping device with a the cooling provision.
  • a first low pressure plunger pump is provided with a first plunjer in a first cylinder which is here mechanically coupled to a second plunger with a smaller surface area and which is moveable in the second cylinder.
  • the casing of the second cylinder is provided with a jacket or casing. This jacket or casing is provided with an inlet for the fluid which need to be pumped, usually a gas, under pressure.
  • the end part of the high pressure cylinder comprises a plate in which a number of additional channels, as is shown in Figures 5 and 10 , are provide by us in order to provide a second cooling conduit, as is shown in Figure 8 and 7 (using special coupling parts, see Figure 14 ). Also, the high pressure outlet can be cooled through this.
  • a temperature sensor (and possibly a redundant second sensor for securing purposes) have been provided, see Figure 3 and 9 .
  • This will, through a programmable temperature controller, control a cooling valve 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 can functionally be provided with a circumferential groove provided with a ceiling 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)
  • Compressor (AREA)
  • Reciprocating Pumps (AREA)
EP10152003.9A 2009-01-28 2010-01-28 Dispositif de pompage Active EP2224132B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11183329.9A EP2405138B1 (fr) 2009-01-28 2010-01-28 Dispositif de pompage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2002460 2009-01-28

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11183329.9A Division EP2405138B1 (fr) 2009-01-28 2010-01-28 Dispositif de pompage
EP11183329.9A Division-Into EP2405138B1 (fr) 2009-01-28 2010-01-28 Dispositif de pompage

Publications (3)

Publication Number Publication Date
EP2224132A2 true EP2224132A2 (fr) 2010-09-01
EP2224132A3 EP2224132A3 (fr) 2011-03-23
EP2224132B1 EP2224132B1 (fr) 2020-01-08

Family

ID=42282846

Family Applications (2)

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

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11183329.9A Not-in-force EP2405138B1 (fr) 2009-01-28 2010-01-28 Dispositif de pompage

Country Status (1)

Country Link
EP (2) EP2224132B1 (fr)

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
JPS63502523A (ja) * 1985-10-10 1988-09-22 ブロウン，アントン 可変ストロークマシーンにおける周期的速度制御
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
EP2405138B1 (fr) 2015-03-11
EP2224132A3 (fr) 2011-03-23
EP2405138A3 (fr) 2012-10-03
EP2405138A2 (fr) 2012-01-11
EP2224132B1 (fr) 2020-01-08

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