EP4377571A1 - Pompe à piston haute pression et utilisation d'une pompe à piston haute pression - Google Patents

Pompe à piston haute pression et utilisation d'une pompe à piston haute pression

Info

Publication number
EP4377571A1
EP4377571A1 EP22728358.7A EP22728358A EP4377571A1 EP 4377571 A1 EP4377571 A1 EP 4377571A1 EP 22728358 A EP22728358 A EP 22728358A EP 4377571 A1 EP4377571 A1 EP 4377571A1
Authority
EP
European Patent Office
Prior art keywords
pressure
plunger pump
plunger
valve
drive shaft
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.)
Pending
Application number
EP22728358.7A
Other languages
German (de)
English (en)
Inventor
Helmig BURKHARD
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.)
Hammelmann GmbH
Original Assignee
Hammelmann GmbH
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 Hammelmann GmbH filed Critical Hammelmann GmbH
Publication of EP4377571A1 publication Critical patent/EP4377571A1/fr
Pending legal-status Critical Current

Links

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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • F04B7/0266—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B53/006—Crankshafts
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/12—Motor parameters of rotating hydraulic motors

Definitions

  • a generic high-pressure plunger pump is known, for example, from DE 102016 124422 A1.
  • the high-pressure plunger pump has one or more plungers that can be driven in an oscillating manner, each of the plungers sucking in a liquid volume into a working chamber of the plunger pump via a control valve designed as a suction valve and delivering it under high pressure through an outlet valve.
  • the plunger is driven by a drive device that can be driven by a drive shaft, for example an electric motor.
  • the object of the present invention is to adapt a generic high-pressure plunger pump for a further field of application.
  • the high-pressure plunger pump according to the invention has at least one plunger arrangement with a working chamber and a plunger arranged in the working chamber so that it can be moved back and forth axially.
  • the high-pressure plunger pump also has at least one first control valve and at least one second control valve, the two control valves being connected to a valve housing with at least one high-pressure line and at least one low-pressure line.
  • the high-pressure line is connected to the work space in a lockable manner by the first control valve.
  • the low-pressure line is closably connected to the working chamber by the second control valve.
  • the valve housing has a high-pressure connection that opens into the high-pressure line.
  • the at least one first control valve and the at least one second control valve can be actuated via a control unit in such a way that a fluid under high pressure that is supplied via the high-pressure connection of the valve housing can be supplied to the working chamber and via a low-pressure connection of the at least one second control valve after driving the Plungers can be discharged, where at least one plunger is coupled via a drive shaft to a generator.
  • control valves as separately controllable control valves via the control unit creates the possibility of using the high-pressure plunger pump for energy recovery.
  • control of the control valves according to the invention can be used to virtually reverse the working of the high-pressure plunger pump, so that a high-pressure fluid can be guided via the high-pressure line into the working chamber of the high-pressure plunger pump, thereby affecting the at least one plunger drives, which in turn is coupled via a drive shaft to a generator, via which at least part of the relaxation energy that occurs during pressure-reducing processes can be recovered.
  • At least three, in particular five special plunger assemblies are provided, each with a plunger, where a first control valve and a second control valve is assigned to each of the plungers.
  • the arrangement of at least three plunger arrangements with separately controllable control valves enables simple and reliable operation of the high-pressure plunger pump for driving the generator.
  • the at least one first control valve and the at least one second control valve can be operated in a controllable manner by the control unit both as an inlet valve and as an outlet valve.
  • the generator can preferably also be operated as a motor.
  • the high-pressure plunger pump for example, in a pressure control system, in which the high-pressure plunger pump generates the necessary working pressure in the working fluid and makes a process structure available and, secondly, is able to absorb excess high pressure of the process structure again and thereby converts the relaxation energy into electrical energy , instead of dissipating the relaxation energy to the outside unused via a drain valve.
  • control valves can be actuated pneumatically, electrically or hydraulically.
  • control unit is coupled to one or more sensors which provide one or more operating parameter data of the high-pressure plunger pump, in particular the rotational position of the drive shaft, a pressure of a fluid in the high-pressure line and/or the low-pressure line.
  • control unit has at least one data interface for acquiring external operating parameter data, in particular of a process structure connected upstream of the high-pressure plunger pump.
  • Such external operating parameter data can be, for example, the system pressure of the upstream process.
  • the high-pressure plunger pump has a second plunger arrangement with a working chamber and a plunger arranged in the working chamber so that it can be moved back and forth axially, as well as at least one pressure valve and at least one suction valve, which is mounted on a valve housing with at least one high-pressure line and at least one low-pressure line are connected.
  • the high-pressure line is closably connected to the working chamber through the pressure valve and the low-pressure line through the suction valve, the at least one plunger being coupled to a third drive shaft via a second drive shaft, the third drive shaft also being coupled to the first drive shaft.
  • This design of the high-pressure plunger pump enables the pressure of the working fluid to be increased during use by the second plunger arrangement, with the energy for driving the plungers of the second plunger arrangement being taken at least partially or completely by the expansion of the working fluid that is introduced into the first plunger arrangement and is under high pressure which drives the first drive shaft and can be transmitted to the second drive shaft by coupling via the third drive shaft.
  • the fluid is supplied at the predetermined high pressure via the high-pressure line and the control valves are controlled via the control unit in such a way that the drive shaft is driven by at least one plunger, with the drive shaft being coupled to a generator to generate electricity.
  • the high-pressure plunger pump is coupled to the process structure in such a way that the high-pressure plunger pump is supplied with the fluid via the high-pressure line at a high pressure predetermined by the hydraulic process structure and the control valves are controlled via the control unit such that the drive shaft is driven by the at least one plunger, the drive shaft being coupled to a generator to generate electricity.
  • Such use serves, for example, as a substitute for a Mathettaven til, with such a pressure relief valve, the excess high pressure is discharged unused to the environment, while using the high-pressure plunger pump, this excess pressure is used via the high-pressure plunger pump for energy recovery.
  • FIG. 1 shows a schematic isometric representation of an energy recovery arrangement with a high-pressure plunger pump
  • FIG. 2 shows an isometric representation of a plunger arrangement with a valve housing arranged thereon with separately controllable control valves
  • FIG. 3 shows a sectional view through a plunger arrangement
  • FIG. 4 shows a schematic isometric representation of a further embodiment variant of a high-pressure plunger pump
  • FIG. 5 shows a sectional view through the plunger arrangement of the high-pressure plunger pump shown in FIG.
  • top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary representation and position of the high-pressure plunger pump, plunger, working chamber, valve housing, control valve, generator and the like selected in the respective figures. These terms are not to be understood as limiting, i.e. these references can change due to different working positions or the mirror-symmetrical design or the like.
  • reference numeral 1 designates an embodiment variant of an energy recovery arrangement.
  • the central component of this energy recovery arrangement 1 is a high-pressure plunger pump 2, which is coupled to a generator 11 via a first drive shaft, preferably with a clutch 12 being interposed.
  • a frame 13 of the energy recovery arrangement 1 serves to fix the high-pressure plunger pump 2, the clutch 12 and the generator 11.
  • the high-pressure plunger pump 2 has five plunger assemblies 3, each with a working chamber 31 and a plunger 32 arranged to be axially movable back and forth in the working chamber 31, as is shown by way of example in the sectional illustration in FIG.
  • a first control valve 5 and a second control valve 6 is provided, which are connected to a valve housing 4 with being.
  • the valve housing 4 has a high-pressure line 41 for each of the first control valves 5 and a low-pressure line 42 for each of the second control valves.
  • the high-pressure line 41 and the low-pressure line 42 are connected at their end remote from the respective control valve 5, 6 to the working chamber 31 of the plunger arrangement 3.
  • the valve housing 4 also has a high-pressure connection 43 which opens into the high-pressure line(s) 41 and is used to supply or drain off a fluid that is under high pressure.
  • Another fluid port 61 is provided on each of the second control valves 6, as shown in Figures 1-3.
  • the at least one first control valve 5 and the at least one second control valve 6 can be actuated via a control unit 7 in such a way that a fluid under high pressure that is supplied via the high-pressure connection 43 of the valve housing 4 can be supplied to the working chamber 31 and via a low-pressure connection 61 of the at least one second control valve 6 after Antrei ben of the plunger 32 can be discharged.
  • the at least one plunger 32 is coupled to a generator 11 via the drive shaft 9, as explained above.
  • the high-pressure plunger pump 2 is also characterized in that the control valves 5, 6 can be operated by the control unit 7 both as an inlet valve and as an outlet valve.
  • control valves 5, 6 are preferably pneumatically controlled. Controlling the control valves 5, 6 with the aid of an electric or hydraulic drive is also conceivable.
  • control unit 7 is preferably coupled to one or more sensors, each of which measures one or more operating parameters of the high-pressure plunger pump 2, in particular the rotational position of the drive shaft 9, a pressure of a fluid in the high-pressure line 41 and/or the low-pressure line 42 provide.
  • control unit 7 also has at least one data interface for recording external operating parameter data.
  • external operating parameter data are data from a process structure connected upstream of the high-pressure plunger pump 2 . If the expansion of a pressurized fluid is necessary in such a process structure, the pressurized fluid can be supplied to the braided pressure plunger pump 2 via the high-pressure connection 43 .
  • a sensor in the upstream process structure emits a signal to the control unit 7, which then opens the control valve 5, so that the fluid under pressure passes through the high-pressure line 41 into the working chamber 31 of the plunger 32 and there the plunger 32 from a compression position into an expansion position.
  • the first drive shaft which is coupled to the generator 11, is rotated so that the introduction of the high-pressure fluid into the working chamber 31 of the plunger assembly 3 generates electricity and thus causes energy recovery in the generator.
  • the high-pressure plunger pump 2 In a first use of the high-pressure plunger pump 2 for pressure control in a hydraulic process structure, the high-pressure plunger pump is coupled to the process structure in such a way that in pumping operation, i.e. with classic use of the high-pressure plunger pump 2, the high-pressure plunger pump 2 supplies the process structure with a fluid at a predetermined high pressure.
  • control valves 5, 6 takes place in this manner, which is known per se, with the first control valves being connected as outlet valves and the control valves 6 as inlet valves during pumping operation.
  • control valves 5, 6 of the braided pressure plunger pump 2 are switched over to an energy recovery mode in which the braided pressure plunger pump 2 acts as a kind of motor.
  • the high-pressure fluid with the predetermined Floch pressure is routed via the Floch pressure connection 43 and the Floch pressure line 41 when the first control valve 5 is open into the working chamber 31 of the plunger arrangement 3.
  • the braided pressure plunger pump 2 serves as an expansion valve, in particular as an overpressure valve.
  • the Floch pressure plunger pump 2 is inserted here as an expansion valve, so to speak, in an upstream process structure, so that a Floch pressure to be derived is conducted into the Floch pressure plunger pump 2 in the manner previously described as motor operation of the Floch pressure plunger pump 2, which via the plunger or plungers 32 and the drive shaft 9 an energy recovery voltage by power generation in the generator 11 causes.
  • a Floch pressure to be derived is conducted into the Floch pressure plunger pump 2 in the manner previously described as motor operation of the Floch pressure plunger pump 2, which via the plunger or plungers 32 and the drive shaft 9 an energy recovery voltage by power generation in the generator 11 causes.
  • the further embodiment variant of a high-pressure plunger pump according to the invention shown in FIGS. 4 and 5 has, in addition to the first plunger arrangement 3, a second plunger arrangement 300 with a working chamber 310 and at least one plunger 320 arranged in the working chamber 310 so that it can be moved back and forth axially.
  • plungers 320 are preferably provided.
  • a pressure valve 500 and a suction valve 600 are provided for each plunger, which are connected to a valve housing 400 with a high-pressure line 410 and a low-pressure line 420 .
  • the high-pressure line 410 is connected to the working chamber 310 in a closable manner by the pressure valve 500 and the low-pressure line 420 is connected to the working chamber 310 by the suction valve 600 .
  • the at least one plunger 320 is coupled to a third drive shaft 9 via a second drive shaft, with the third drive shaft 9 also being coupled to the first drive shaft.
  • the third drive shaft 9 is preferably designed as a pinion shaft.
  • the first and second drive shaft is preferably designed as a crankshaft.
  • an arrangement of the plunger arrangements 3, 300 one behind the other is also conceivable, for example.
  • the second plunger arrangement 300 and the associated valves serve here exclusively to increase the pressure of a working fluid, so that this area of the high-pressure plunger pump works as a pump, with the working fluid that is under high pressure being available at a high-pressure connection 430 shown as an example in Figure 4.
  • the working fluid is introduced into the high-pressure plunger pump via a low-pressure connection 700 .
  • the energy required for the operation of this area is provided partially or even completely via the coupling of the three drive shafts through the other area of the high-pressure plunger pump with the first plunger arrangement and the control valves associated therewith.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention se rapporte à une pompe à piston haute pression (2) qui comprend : au moins un ensemble piston (3) ayant une chambre de travail (31) et un piston (32) qui est positionné dans la chambre de travail (31) de sorte à pouvoir se déplacer en va-et-vient dans une direction axiale ; au moins une première soupape de commande (5) et au moins une seconde soupape de commande (6) qui sont reliées à un boîtier de soupape (4) présentant au moins une conduite haute pression (41) et au moins une conduite basse pression (42), la conduite haute pression (41) étant reliée à la chambre de travail (31) de manière étanche par la première soupape de commande (5) et la conduite basse pression (42) étant reliée à la chambre de travail (31) de manière étanche par la seconde soupape de commande (6), le boîtier de soupape (4) présentant une liaison haute pression (43) qui débouche dans la conduite haute pression (41), la ou les premières soupapes de commande (5) et la ou les secondes soupapes de commande (6) pouvant être actionnées au moyen d'une unité de commande (7) de telle manière qu'un fluide, qui est amené par le biais de la liaison haute pression (43) du boîtier de soupape (4) et qui est sous haute pression, soit introduit dans la chambre de travail (31) et puisse être évacué par le biais d'une liaison basse pression (61) de la ou des soupapes d'aspiration (6) après l'entraînement du piston (32), le ou les pistons (32) étant couplés à un générateur (11) par le biais d'un arbre d'entraînement.
EP22728358.7A 2021-07-29 2022-05-05 Pompe à piston haute pression et utilisation d'une pompe à piston haute pression Pending EP4377571A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021119690.6A DE102021119690A1 (de) 2021-07-29 2021-07-29 Hochdruckplungerpumpe und Verwendung einer Hochdruckplungerpumpe
PCT/EP2022/062195 WO2023006270A1 (fr) 2021-07-29 2022-05-05 Pompe à piston haute pression et utilisation d'une pompe à piston haute pression

Publications (1)

Publication Number Publication Date
EP4377571A1 true EP4377571A1 (fr) 2024-06-05

Family

ID=81975129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22728358.7A Pending EP4377571A1 (fr) 2021-07-29 2022-05-05 Pompe à piston haute pression et utilisation d'une pompe à piston haute pression

Country Status (7)

Country Link
EP (1) EP4377571A1 (fr)
JP (1) JP2024527050A (fr)
KR (1) KR20240036597A (fr)
CN (1) CN117769623A (fr)
DE (1) DE102021119690A1 (fr)
IL (1) IL310146A (fr)
WO (1) WO2023006270A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022129520A1 (de) 2022-11-08 2024-05-08 Hammelmann GmbH Antriebseinheit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2529909B (en) * 2014-09-30 2016-11-23 Artemis Intelligent Power Ltd Industrial system with synthetically commutated variable displacement fluid working machine
DE102016124422A1 (de) 2016-12-14 2018-06-14 Hammelmann GmbH Hochdruckplungerpumpe sowie Verfahren zur Funktionsunterbrechung eines Fluidstroms

Also Published As

Publication number Publication date
KR20240036597A (ko) 2024-03-20
CN117769623A (zh) 2024-03-26
IL310146A (en) 2024-03-01
DE102021119690A1 (de) 2023-02-02
JP2024527050A (ja) 2024-07-19
WO2023006270A1 (fr) 2023-02-02

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