EP4088027A1 - Procédé de fonctionnement d'une pompe à solides haute densité et pompe à solides haute densité - Google Patents

Procédé de fonctionnement d'une pompe à solides haute densité et pompe à solides haute densité

Info

Publication number
EP4088027A1
EP4088027A1 EP21700156.9A EP21700156A EP4088027A1 EP 4088027 A1 EP4088027 A1 EP 4088027A1 EP 21700156 A EP21700156 A EP 21700156A EP 4088027 A1 EP4088027 A1 EP 4088027A1
Authority
EP
European Patent Office
Prior art keywords
pump
drive
setpoint
volume flow
parameter
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
EP21700156.9A
Other languages
German (de)
English (en)
Other versions
EP4088027B1 (fr
Inventor
Frederik KORT
Christian Ziemens
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.)
Putzmeister Engineering GmbH
Original Assignee
Putzmeister Engineering 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 Putzmeister Engineering GmbH filed Critical Putzmeister Engineering GmbH
Publication of EP4088027A1 publication Critical patent/EP4088027A1/fr
Application granted granted Critical
Publication of EP4088027B1 publication Critical patent/EP4088027B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04B49/06—Control using electricity
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/28—Control of machines or pumps with stationary 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • 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
    • F04B9/117—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 the pumping members not being mechanically connected to each other
    • 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
    • F04B9/117—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 the pumping members not being mechanically connected to each other
    • F04B9/1176—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 the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor
    • F04B9/1178—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 the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor the movement in the other direction being obtained by a hydraulic connection between the liquid motor 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
    • 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
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers

Definitions

  • the invention relates to a method for operating a thick matter pump and a thick matter pump.
  • the object of the invention is to provide a method for operating a thick matter pump and a thick matter pump, each of which has improved properties.
  • the invention solves this problem by providing a method with the features of claim 1 and a thick matter pump with the features of claim 15.
  • Advantageous further developments and / or refinements of the invention are described in the dependent claims.
  • The, in particular automatic, method according to the invention is designed or configured for, in particular automatically, operating a thick matter pump.
  • the thick matter pump comprises or has a thick matter delivery system and a hydraulic drive system.
  • the thick matter conveying system is designed or configured for conveying thick matter with a variably adjustable conveying volume flow, in particular conveying volume flow value.
  • the hydraulic drive system comprises or has for driving the thick matter delivery system a, in particular common, hydraulic circuit having or comprising a hydraulic fluid, a variably operable first drive pump and a variably operable second drive pump.
  • the first drive pump for variable operation with at least one variably adjustable first pump parameter, in particular pump parameter value
  • the second drive pump for variable operation independent of the first pump parameter with at least one variably adjustable second pump parameter, pump parameter value, for, in particular, direct, generation of a variably adjustable one Total drive volume flow, in particular
  • the method comprises or has the following steps: determining, in particular automatically determining, a total drive volume flow setpoint for the total drive volume flow. Determination, in particular automatic determination, of a first Setpoint parameter value for the first pump parameter and a second setpoint parameter value for the second pump parameter as a function of, in particular at least, the total drive volume flow setpoint determined. The first parameter setpoint and the second parameter setpoint are different from one another if the total drive volume flow setpoint determined is in at least one
  • Total drive volume flow setpoint range from a set of possible total drive volume flow setpoints. Conveying the thick matter with the delivery volume flow with a delivery volume flow setpoint by generating the total drive volume flow with the determined total drive volume flow setpoint by means of, in particular automatically, setting the first pump parameter to the determined first parameter setpoint and the second pump parameter to the determined second parameter setpoint.
  • first parameter setpoint and the second parameter setpoint to be different from one another to operate the thick matter pump more optimally, in particular in contrast to a method not according to the invention for operating a thick matter pump, the first parameter setpoint and the second parameter setpoint being the same for all possible total drive volume flow setpoints.
  • the at least one total drive volume flow setpoint range with the first parameter setpoint and the second parameter setpoint can have or comprise at least the one total drive volume flow setpoint different from one another.
  • the at least one total drive volume flow setpoint range with the first parameter setpoint and the second parameter setpoint can differ from one another at a minimum of 20 percent (%), in particular a minimum of 30%, in particular a minimum of 40%, and / or a maximum of 100% of the amount of possible total drive volume flow setpoints.
  • the first parameter setpoint and the second parameter setpoint can be the same if the total drive volume flow setpoint determined is in at least one other total drive volume flow setpoint range from the set of possible total drive volume flow setpoints.
  • the first pump parameter or the first parameter setpoint and the second pump parameter or the second parameter setpoint can be comparable or of the same type or of the same type or the same unit, in particular the unit of measurement.
  • the values, in particular setpoint values can each be in a, in particular an absolute, unit of measurement or a relative unit, in particular in%, in particular limited by a minimum value of 0% and a maximum value of 100%.
  • Variably adjustable can be called adjustable or changeable and / or variable setting can be called adjusting or changing and / or variably operated drive pump can be referred to as a variable displacement pump.
  • variably adjustable to at least three different values, in particular continuously adjustable, and / or variable setting can mean setting to one of at least three different values, in particular continuously variable.
  • the first parameter setpoint and / or the second parameter setpoint can be changed or adjusted or set differently.
  • the total drive volume flow setpoint can be specified by a user or an operator of the thick matter pump.
  • the total drive volume flow of the hydraulic fluid can be generated in a drive pressure section, in particular a drive high pressure section, of the hydraulic circuit. Additionally or alternatively, the first drive pump and the second drive pump can be coupled to one another.
  • the hydraulic fluid can comprise, in particular be, oil.
  • the thick matter pump can be a building material pump. Additionally or alternatively, the thick matter conveying system can be designed for conveying thick matter in the form of building material. Building material can refer to mortar, cement, screed, concrete and / or plaster. In addition or as an alternative, thick matter can also refer to sludge.
  • the method comprises or has the step of: determining, in particular automatically determining, in particular recording, the delivery volume flow setpoint value for the delivery volume flow.
  • the method includes: determining the total drive volume flow setpoint as a function of the determined delivery volume flow setpoint.
  • the delivery volume flow setpoint can be specified by the user of the thick matter pump.
  • the method comprises or has the step: acquisition, in particular automatic acquisition, of an actual drive pressure value Drive pressure, in particular a high drive pressure, of the hydraulic fluid in the hydraulic circuit.
  • the drive pressure actual value of the drive pressure is set as a function of a delivery pressure actual value of a delivery pressure of the thick matter during delivery or during delivery.
  • the method includes: determining the first parameter setpoint and the second parameter setpoint as a function of the actual drive pressure value detected.
  • the determination of the first parameter setpoint and the second parameter setpoint as a function of the detected actual drive pressure value enables the thick matter pump to be operated even more optimally, in particular in contrast to a method not according to the invention for operating a thick matter pump, the first parameter setpoint and the second parameter setpoint not being in Can be determined as a function of an actual drive pressure value.
  • the actual delivery pressure value can be set as a function of a consistency of the thick matter and / or a boom position of a placing boom, if present, of the thick matter pump during conveying, in particular and can change during or during conveying.
  • the hydraulic drive system in particular the first drive pump and the second drive pump, can be designed or designed in such a way that the drive pressure actual value can be set.
  • the drive pressure actual value changes, the first parameter setpoint and / or the second parameter setpoint can be changed or adjusted or set differently.
  • the drive pressure can be in a drive pressure section, in particular the drive high pressure can be in a drive high pressure section of the hydraulic circuit.
  • the thick matter pump comprises or has at least, in particular only, one, in particular single, drive motor.
  • the at least one drive motor is designed or configured to rotate the first drive pump and the second drive pump to generate the total drive volume flow.
  • the method includes: conveying the thick matter by rotating the first drive pump and the second drive pump by means of the at least one drive motor.
  • the first drive pump is designed or configured for variable rotation with the first pump parameter in the form of a variably adjustable first pump speed and the second drive pump for variable rotation independent of the first pump speed with the second pump parameter in the form of a variably adjustable second pump speed .
  • the first parameter setpoint in the form of a first pump speed setpoint and the second parameter setpoint in the form of a second pump speed setpoint are different from one another if the total drive volume flow setpoint determined is in the at least one Total drive volume flow setpoint range.
  • the method has: Conveying the thick matter by setting the first pump speed to the determined first pump speed setpoint and the second pump speed to the determined second pump speed setpoint.
  • the thick matter pump can have at least one variably adjustable gear, wherein the at least one variably adjustable gear can connect the, in particular the single, drive motor to the first drive pump and / or the second drive pump for rotation. This can enable the first pump speed and the second pump speed to be independent of one another.
  • the thick matter pump comprises or has a variably operable first drive motor and a second drive motor that can be variably operated independently of the first drive motor.
  • the first drive motor is designed or configured to variably rotate the first drive pump and the second drive motor to variably rotate the second drive pump.
  • the first drive motor can be designed for variably setting its first engine speed and / or the second drive motor for variably setting its second engine speed, in particular independently of the first engine speed.
  • the first drive motor does not need to be designed to variably rotate the second drive pump and / or the second drive motor does not need to be configured to variably rotate the first drive pump.
  • the first drive motor and the second drive motor each comprise or have an electric drive motor.
  • the first drive motor and the second drive motor are each an electric drive motor.
  • the electric drive motor can be a synchronous motor, in particular with an associated frequency converter of the thick matter pump.
  • the, in particular the only, drive motor comprises or has an internal combustion drive motor.
  • the, in particular the only, drive motor is an internal combustion drive motor.
  • the internal combustion drive motor can have, in particular be, a diesel drive motor.
  • the first drive pump is in the form of a first axial piston pump having or comprising a variably adjustable first sliding disk or swashplate for variably setting the first pump parameter in the form of a first pivot angle of the first sliding disk and the second drive pump in the form of a second axial piston pump having or comprising a variably adjustable second sliding washer or swashplate for the variable setting of the second pump parameter independently of the first pivoting angle in the form of a second pivoting angle of the second sliding washer configured or configured.
  • This enables the thick matter pump to have only a single drive motor and / or does not need to have a variably adjustable gear.
  • first drive pump and the second drive pump can be designed to rotate, in particular variably, with a fixed or non-variably adjustable pump speed ratio, in particular an identical, in particular variably adjustable, pump speed.
  • first parameter setpoint in the form of a first swivel angle setpoint and the second parameter setpoint in the form of a second swivel angle setpoint differ from one another if the total drive volume flow setpoint determined is in the at least one
  • the method further additionally or alternatively comprises: conveying the thick matter by setting the first swivel angle to the determined first swivel angle setpoint and the second swivel angle to the ascertained second swivel angle setpoint.
  • the method can have: determining the first parameter setpoint in the form of the first swivel angle setpoint and the second parameter setpoint in the form of the second swivel angle setpoint as a function of an engine speed value, in particular an actual engine speed value, of the drive motor.
  • the, in particular the only, drive motor is designed or configured for the variable setting of its motor speed.
  • the method comprises or has the step of: determining, in particular automatically determining, an engine speed setpoint for the engine speed as a function of the determined total drive volume flow setpoint, in particular and the detected actual drive pressure value, if any.
  • the method has: Conveying the thick matter by means of, in particular automatically, setting the engine speed to the determined engine speed setpoint.
  • a first swivel angle setpoint for the first swivel angle increases, in particular from a first swivel angle minimum value, in particular zero, to a first swivel angle maximum value and a second swivel angle setpoint for the second swivel angle is constant, in particular a second swivel angle minimum value, in particular zero, and in a higher total drive volume flow setpoint range, the second swivel angle setpoint increases, in particular from the second Swivel angle minimum value, in particular zero, up to a second swivel angle maximum value, in particular and if the first swivel angle setpoint is the first swivel angle maximum value and the second swivel angle setpoint is the second swivel angle maximum value, an even higher value
  • the setpoint engine speed value increases from a minimum engine speed value, in particular greater than zero, to a maximum engine speed value. This enables maximum efficiency of the hydraulic drive system.
  • the motor speed setpoint value can be constant, in particular the motor speed minimum value, in particular greater than zero.
  • the first swivel angle minimum value and the second swivel angle minimum value can be the same and / or the first swivel angle maximum value and the second swivel angle maximum value can be the same.
  • the second axial piston pump can generate the same total drive volume flow value of the total drive volume flow at the second swivel angle maximum value as the first axial piston pump at the first swivel angle maximum value, in particular at the same pump speed.
  • the second axial piston pump in particular alone, generates a higher total drive volume flow value of the total drive volume flow than the first axial piston pump, in particular alone, in the case of a second maximum pivot angle value of the second pivot angle, in particular with the same pump speed.
  • a first swivel angle setpoint for the first swivel angle is higher than a second swivel angle setpoint for the second swivel angle up to the first swivel angle maximum value; in a higher total drive volume flow setpoint range, the second swivel angle setpoint is higher than the first swivel angle setpoint up to second swivel angle maximum value, in particular and if the first swivel angle setpoint is the first swivel angle maximum value and the second swivel angle setpoint is the second swivel angle maximum value, at an even higher value
  • the motor speed setpoint increases from a motor speed minimum value to a motor speed maximum value. This enables maximum efficiency of the hydraulic drive system.
  • the second axial piston pump can have a higher maximum displacement than the first axial piston pump.
  • the first maximum swivel angle value and the second maximum swivel angle value can be the same.
  • the method has: Determination of the first parameter setpoint and the second parameter setpoint, in particular and the engine speed setpoint, if any, on the basis of an optimization criterion.
  • the optimization criterion is a maximum efficiency of the thick matter pump, in particular a maximum efficiency of the hydraulic drive system, in particular a maximum efficiency of the first drive pump and / or a maximum efficiency of the second drive pump, or a minimum energy consumption, in particular a minimum fuel consumption, and / or a maximum efficiency of the at least one drive motor.
  • the optimization criterion can be specified by the user of the thick matter pump.
  • the first drive pump and the second drive pump are arranged in parallel in the hydraulic circuit.
  • the hydraulic drive system comprises or has, in particular at least, one variably movable drive piston in the hydraulic circuit for driving the thick matter delivery system.
  • the first drive pump and the second drive pump are designed or configured to generate the variably adjustable total drive volume flow of the hydraulic fluid in the hydraulic circuit for variably moving the, in particular at least one, drive piston.
  • the method has: Conveying the thick matter by means of variable movement of the drive piston.
  • the first parameter setpoint and the second parameter setpoint can differ from one another during or during a stroke, in particular at least 50% percent of a length and / or a duration of the stroke, in particular and not just for a change in a direction of movement of the drive piston.
  • the thick matter pump according to the invention has a, in particular the thick matter delivery system, a, in particular the, hydraulic drive system and an, in particular electrical, determination device.
  • the thick matter conveying system is designed for conveying thick matter, in particular the thick matter, with a, in particular the, variably adjustable conveying volume flow.
  • the hydraulic drive system has for driving the thick matter delivery system one, in particular the hydraulic circuit having one, in particular the hydraulic fluid, one, in particular the variably operable first drive pump and one, in particular the variably operable second drive pump.
  • the first Drive pump for variable operation with at least one, in particular the at least one, variably adjustable first pump parameter and the second drive pump for variable operation, independent of the first pump parameter, with at least one, in particular the at least one, variably adjustable second pump parameter for generating one, in particular the, variable adjustable total drive volume flow of the hydraulic fluid formed in the hydraulic circuit.
  • the determination device is designed or configured to, in particular automatically, determine one, in particular the, total drive volume flow setpoint for the total drive volume flow. Furthermore, the determination device is designed or configured to, in particular automatically, determine one, in particular the first parameter setpoint for the first pump parameter and one, in particular the second parameter setpoint for the second pump parameter, depending on the determined total drive volume flow setpoint.
  • the first parameter setpoint and the second parameter setpoint are different from one another if the determined total drive volume flow setpoint is in at least one, in particular the at least one, total drive volume flow setpoint range from one, in particular, the set of possible total drive volume flow setpoints.
  • the thick matter pump is designed or designed to convey the thick matter with the conveyed volume flow with a, in particular the, conveyed volume flow setpoint by generating the total drive volume flow with the determined total drive volume flow setpoint by means of, in particular automatically, setting the first pump parameter to the determined first parameter setpoint and the second pump parameter to the determined second parameter setpoint configured.
  • the thick matter pump can provide the same advantages as the method described above.
  • the thick matter pump can be designed or configured to carry out the method described above.
  • the determination device can have a processor and / or a memory.
  • Fig. 2 is a schematic circuit diagram of a section of the invention
  • Thick matter pump having a first drive motor and a second drive motor
  • FIG. 3 shows a flow chart of a method according to the invention for operating the thick matter pump according to the invention by means of a look-up table
  • FIG. 4 shows a flow chart for determining the look-up table of FIG. 3,
  • FIG. 5 shows a flow chart of the method according to the invention for operating the thick matter pump according to the invention by means of online determination
  • FIG. 6 shows a graph of a first parameter setpoint in the form of a first
  • Swivel angle setpoint a second parameter setpoint in the form of a second swivel angle setpoint and a motor speed setpoint over an increasing total drive volume flow setpoint of the method according to the invention
  • FIG. 7 shows a further graph of a first parameter setpoint in the form of a first swivel angle setpoint, a second parameter setpoint in the form of a second swivel angle setpoint and a motor speed setpoint over an increasing total drive volume flow setpoint of the method according to the invention.
  • the thick matter pump 1 has a thick matter delivery system 2, a hydraulic drive system 3 and a determination device 50.
  • the thick matter conveyor system 2 is designed to convey thick matter DS with a variably adjustable conveying volume flow QF.
  • the hydraulic drive system 3 has a hydraulic circuit 4 having a hydraulic fluid HF, a variably operable first drive pump 5 and a variably operable second drive pump 7.
  • the first drive pump 5 is for variable operation with at least one variably adjustable first pump parameter P5 and the second Drive pump 7 designed for variable operation independent of the first pump parameter P5 with at least one variably adjustable second pump parameter P7 for generating a variably adjustable total drive volume flow QA of the hydraulic fluid HF in the hydraulic circuit 4.
  • the determination device 50 is designed to determine a total drive volume flow setpoint QAS for the total drive volume flow QA, as shown in FIGS. 3 and 5. Furthermore, the determination device 50 is designed to determine a first parameter setpoint P5S for the first pump parameter P5 and a second parameter setpoint P7S for the second pump parameter P7 as a function of the determined total drive volume flow setpoint QAS.
  • the first parameter setpoint P5S and the second parameter setpoint P7S are different from each other if the determined total drive volume flow setpoint QAS is in at least one total drive volume flow setpoint range QASB1, QASB2, QASB3, QASB1 'from a set of 0, QASB1, QASB2, QASB3, QASB1', QASB4, QASB4, QASB4 'QASB3' of possible total drive volume flow setpoints QAS, as shown in FIGS. 6 and 7.
  • the thick matter pump 1 is for pumping the thick matter DS with the delivery volume flow QF with a delivery volume flow setpoint QFS by generating the total drive volume flow QA with the determined total drive volume flow setpoint QAS by setting the first pump parameter P5 to the determined first parameter setpoint P5S and the second pump parameter P7 to the determined second parameter P7S educated.
  • the thick matter pump 1 has the thick matter delivery system 2 and the hydraulic drive system 3.
  • the thick matter conveyor system 2 is designed to convey the thick matter DS with the variably adjustable conveying volume flow QF.
  • the hydraulic drive system 3 has the hydraulic circuit 4 having the hydraulic fluid HF, the variably operable first drive pump 5 and the variably operable second drive pump 7.
  • the first drive pump 5 for variable operation with the at least one variably adjustable first pump parameter P5 and the second drive pump 7 for variable operation independent of the first pump parameter P5 with the at least one variably adjustable second pump parameter P7 for generating the variably adjustable total drive volume flow QA of the hydraulic fluid HF formed in the hydraulic circuit 4.
  • the method has the following steps: Determining the total drive volume flow setpoint QAS for the total drive volume flow QA, in particular by means of the determination device 50. Determining the first parameter setpoint P5S for the first pump parameter P5 and the second parameter setpoint P7S for the second pump parameter P7 as a function of the determined total drive volume flow setpoint QAS, in particular by means of the determination device 50.
  • the first parameter setpoint P5S and the second parameter setpoint P7S are different from each other if the total drive volume flow setpoint QAS determined is in the at least one total drive volume flow setpoint range QASB1, QASB2, QASB3, QASB1 'from the set 0, QASB1, QASB2, QASB3, QASB1', QASB2 ', QASB3' of possible total drive volume flow setpoints QAS is.
  • the hydraulic drive system 3 has only the variably operable first drive pump 5 and the variably operable second drive pump 7.
  • the hydraulic drive system can have at least three, in particular at least four, variably operable drive pumps.
  • first drive pump 5 and the second drive pump 7 are arranged in parallel in the hydraulic circuit 4.
  • the hydraulic drive system 3 has a variably movable drive piston 11a, 11b in the hydraulic circuit 4 for driving the thick matter delivery system 2.
  • the first drive pump 5 and the second drive pump 7 are designed to generate the variably adjustable total drive volume flow QA of the hydraulic fluid HF in the hydraulic circuit 4 for the variable movement of the drive piston 11a, 11b.
  • the method comprises: conveying the thick matter DS by means of variable movement of the drive piston 11a, 11b.
  • the hydraulic drive system 3 has exactly two variably movable drive pistons 11a, 11b.
  • the hydraulic drive system can have only a single variably movable drive piston or at least three, in particular at least four, variably movable drive pistons.
  • the hydraulic drive system 3 has one drive cylinder 10a, 10b, two in the exemplary embodiment shown.
  • the drive piston 11a, 11b is arranged in the, in particular assigned, drive cylinder 10a, 10b.
  • the hydraulic circuit 4 also has a swing line 60.
  • the first drive pump 5 and the second drive pump 7 and the two drive cylinders 10a, 10b form a closed drive circuit for the hydraulic fluid HF by means of the swing line 60.
  • the two drive pistons 11a, 11b are coupled by means of the swing line 60, in particular in phase opposition.
  • first drive pump 5 and the second drive pump 7 or the closed drive circuit have a high pressure side and a low pressure side, in particular which are cyclically exchanged with one another, in particular when or during the operation of the thick matter pump 1.
  • the thick matter delivery system 2 has, in particular, at least one delivery cylinder 12a, 12b and, in particular at least, one variably movable delivery piston 13a, 13b for conveying the thick matter DS with the variably adjustable delivery volume flow QF.
  • the delivery piston 13a, 13b is arranged in the, in particular assigned, delivery cylinder 12a, 12b.
  • the method comprises: conveying the thick matter DS by means of variable movement of the conveying piston 13a, 13b.
  • the thick matter pump 1 has, in particular at least, one piston rod 14a, 14b.
  • the piston rod 14a, 14b is fastened to the, in particular assigned, drive piston 11a, 11b for the purpose of coupling movement with or transferring movement to the, in particular assigned, delivery piston 13a, 13b.
  • the method has the following step: determining the delivery volume flow setpoint QFS for the delivery volume flow QF, in particular by means of the determination device 50.
  • the method comprises: determining the total drive volume flow setpoint QAS as a function of the determined delivery volume flow setpoint QFS.
  • the thick matter pump 1 has a user-operated control panel 51 for specifying, in particular selecting, the delivery volume flow setpoint QFS by a user of the thick matter pump 1.
  • the method also has the step of: detecting an actual drive pressure value pAI of a drive pressure pA, in particular a high drive pressure pH, of the hydraulic fluid HF in the hydraulic circuit 4, in particular by means of an, in particular electrical, sensor 40 which sets the thick matter pump 1.
  • the actual drive pressure value pAI of the drive pressure pA a delivery pressure pF of the thick matter DS during delivery as a function of a delivery pressure actual value pFI.
  • the method includes: determining the first parameter setpoint P5S and the second parameter setpoint P7S as a function of the detected actual drive pressure value pAI.
  • the thick matter pump 1 also has at least one drive motor 9, 95, 97.
  • the at least one drive motor 9, 95, 97 is designed to rotate the first drive pump 5 and the second drive pump 7 to generate the total drive volume flow QA.
  • the method comprises: conveying the thick matter DS by rotating the first drive pump 5 and the second drive pump 7 by means of the at least one drive motor 9, 95, 97.
  • first drive pump 5 is designed for variable rotation with the first pump parameter P5 in the form of a variably adjustable first pump speed n5 and the second drive pump 7 for variable rotation independent of the first pump speed n5 with the second pump parameter P7 in the form of a variably adjustable second pump speed n7 as shown in FIG.
  • the thick matter pump 1 has a variably operable first drive motor 95 and a second drive motor 97 which can be variably operated independently of the first drive motor 95.
  • the first drive motor 95 is designed for the variable rotation of the first drive pump 5 and the second drive motor 97 for the variable rotation of the second drive pump 7.
  • the first drive motor 95 is designed to variably set its first engine speed n95 and the second drive motor 97 is designed to variably set its second engine speed n97.
  • first drive motor 95 and the second drive motor 97 each have an electric drive motor 105, 107.
  • first drive motor 95 and the second drive motor 97 are each an electric drive motor 105, 107.
  • the thick matter pump 1 has only a single drive motor 9.
  • the drive motor 9 has an internal combustion drive motor 10.
  • the drive motor 9 is an internal combustion drive motor 10.
  • the first drive pump 5 in the form of a first axial piston pump 5 ' having a variably adjustable first sliding washer 6 for variably setting the first pump parameter P5 in the form of a first pivot angle W6 of the first sliding washer 6 and the second drive pump 7 in the form of a second axial piston pump 7 ′ having a variably adjustable second sliding washer 8 for the variable setting of the second pump parameter P7 in the form of a second pivoting angle W8 of the second sliding washer 8 independent of the first pivoting angle W6.
  • the hydraulic drive system 3 has at least one, in particular electrically adjustable, actuator.
  • the at least one actuator is designed to variably set the first pivot angle W6 and the second pivot angle W8.
  • the, in particular the only, drive motor 9 is designed for the variable setting of its motor speed n9.
  • the method has the step: determining a motor speed setpoint n9S for the motor speed n9 as a function of the determined total drive volume flow setpoint QAS, in particular and the detected drive pressure actual value pAI, as shown in FIGS. 3 and 5 to 7, in particular by means of the determination device 50 on: Conveying the thick matter DS by setting the engine speed n9 to the determined engine speed setpoint n9S, in particular by means of the thick matter pump 1.
  • Swivel angle setpoint value W6S for the first swivel angle W6 varies, in particular from a first swivel angle minimum value W6min 0%, to a first
  • Swivel angle maximum value W6max in particular 100%
  • Swivel angle setpoint value W8S for the second swivel angle W8 is constant, in particular a second swivel angle minimum value W8min 0%, as shown in FIGS. 6 and 7.
  • the second increases the total drive volume flow setpoint range QASB2, QASB2 '
  • Swivel angle setpoint value W8S in particular from the second swivel angle minimum value W8min 0%, in Fig. 6 to 80% and from 80% and in Fig. 7 to 50% and from 50%, up to a second pivot angle maximum value W8max, in particular 100%.
  • the motor speed setpoint increases from a minimum motor speed value n9Smin 6 70% and in FIG. 7 60%, up to an engine speed maximum value n9max, in particular 100%.
  • the second axial piston pump 7 generates a higher total drive volume flow value QAW of the total drive volume flow QA at the second maximum pivot angle value W8max of the second pivot angle W8 than the first axial piston pump 5 at the first maximum pivot angle value W6max of the first pivot angle W6.
  • the first swivel angle setpoint W6S for the first swivel angle W6 is higher than the second swivel angle setpoint W8S for the second swivel angle W8 up to the first swivel angle maximum value W6max.
  • the second swivel angle setpoint W8S is higher than the first swivel angle setpoint W6S up to the second swivel angle maximum value W8max.
  • the second axial piston pump 7 generates the same total drive volume flow value QAW at the second swivel angle maximum value W8max as the first axial piston pump 5 at the first swivel angle maximum value W6max.
  • the low total drive volume flow setpoint range QASB1 is greater than 0% to 30% of a total drive volume flow maximum value QAmax.
  • the higher total drive volume flow setpoint range QASB2 is greater than 30% to 40% of the total drive volume flow maximum value QAmax.
  • the even higher total drive volume flow setpoint range QASB4 is greater than 70% to 100% of the total drive volume flow maximum value QAmax.
  • a total drive volume flow setpoint range 0 is lower than the low total drive volume flow setpoint range QASB1 0% and on
  • Total drive volume flow setpoint range QASB3 between the higher Total drive volume flow setpoint range QASB2 and the even higher total drive volume flow setpoint range QASB4 is greater than 40% to 70%.
  • the low total drive volume flow setpoint range QASB1 ' is greater than 0% to 40% of the total drive volume flow maximum value QAmax.
  • Total drive volume flow setpoint range QASB2 ' is greater than 40% to 80% of the total drive volume flow maximum value QAmax.
  • a total drive volume flow setpoint range 0 is lower than the low total drive volume flow setpoint range QASB1 0%.
  • the first swivel angle setpoint W6S is constant, in particular the first swivel angle minimum value W6min 0%, as shown in FIG. 6.
  • the first swivel angle setpoint value W6S increases, in particular from the first swivel angle minimum value W6min 0%, in particular up to 70% and from 70%, up to the first swivel angle maximum value W6max.
  • the second swivel angle setpoint value W8S increases, in particular from 50%, up to the second swivel angle maximum value W8max.
  • the first swivel angle setpoint value W6S increases, in particular from 50%, to the first swivel angle maximum value W6max, as shown in FIG. 7.
  • the first parameter setpoint P5S and the second parameter setpoint P7S are different from each other if the determined total drive volume flow setpoint QAS is in the lower total drive volume flow setpoint range QASB1, QASB1 'and the higher total drive volume flow setpoint range QASB2, in particular and the total drive volume flow setpoint range QASB3.
  • the first parameter setpoint P5S and the second parameter setpoint P7S are equal to one another if the total drive volume flow setpoint determined is in the total drive volume flow setpoint range 0, the higher one
  • the minimum engine speed setpoint n9min is constant, in particular the minimum engine speed value n9S.
  • the method has: determining the first parameter setpoint P5S and the second parameter setpoint P7S, in particular and the engine speed setpoint n9S, using an optimization criterion OK, as shown in FIGS. 3 to 5.
  • the optimization criterion OK is a maximum efficiency plmax of the thick matter pump 1, in particular a maximum efficiency p2max of the hydraulic drive system 2, in particular a maximum efficiency p5max of the first drive pump 5 and / or a maximum efficiency r
  • the user-operated control panel 51 is designed for the user of the thick matter pump 1 to specify, in particular to select, the optimization criterion OK.
  • the first parameter setpoint P5S and the second parameter setpoint P7S, in particular and the engine speed setpoint n9S are determined by means of a look-up table or offline.
  • the look-up table is determined by means of maps, in particular efficiency maps, of the first drive pump 5 and the second drive pump 7, in particular and of the at least one drive motor 9, 95, 97, for the possible total drive volume flow setpoints QAS, in particular and possible drive pressure actual values pAI , in particular calculated as shown in FIG.
  • the first parameter setpoint P5S and the second parameter setpoint P7S, in particular and the engine speed setpoint n9S are determined by means of, in particular, the characteristic maps of first drive pump 5 and the second drive pump 7, in particular and the at least one drive motor 9, 95, 97, determined online, in particular calculated.
  • the determination device 50 has an, in particular electrical, signal connection with the first drive pump 5 and the second drive pump 7, in particular by means of the at least one actuator, in particular and the control panel 51, the sensor 40, and the at least one drive motor 9, 95, 97 on.
  • the invention provides an advantageous method for operating a thick matter pump and an advantageous thick matter pump, each of which has improved properties

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'une pompe à solides haute densité (1), la pompe à solides haute densité (1) comprenant : - un système de distribution de solides haute densité (2), le système de distribution de solides haute densité (2) étant conçu pour délivrer de la matière solide (DS) haute densité avec un débit volumique de refoulement (QF) qui peut être réglé de manière variable, et - un système d'entraînement hydraulique (3), le système d'entraînement hydraulique (3) destiné à entraîner le système de distribution de solides haute densité (2) comportant : - un circuit hydraulique (4) comportant un fluide hydraulique (HF) ; - une première pompe d'entraînement (5) qui peut être actionnée de manière variable, et - une seconde pompe d'entraînement (7) qui peut être actionnée de manière variable, la première pompe d'entraînement (5) étant conçue pour fonctionner de manière variable avec au moins un premier paramètre de pompe (P5) pouvant être réglée de manière variable et la seconde pompe d'entraînement (7) étant conçue pour fonctionner de manière variable, indépendamment du premier paramètre de pompe (P5), avec un second paramètre de pompe (P7) pouvant être réglé de manière variable pour générer un débit volumique d'entraînement total (QA) réglable de manière variable du fluide hydraulique (HF) dans le circuit hydraulique (4), le procédé comprenant les étapes suivantes consistant à : - déterminer une valeur cible de débit volumique d'entraînement total (QAS) pour le débit volumique d'entraînement total (QA), - déterminer une valeur cible de premier paramètre (P5S) pour le premier paramètre de pompe (P5) et une valeur cible de second paramètre (P7S) pour le second paramètre de pompe (P7) en fonction de la valeur cible de débit volumique d'entraînement total (QAS) déterminée, la valeur cible de premier paramètre (P5S) et la valeur cible de second paramètre (P7S) différant l'une de l'autre si la valeur cible de débit volumique d'entraînement total (QAS) déterminée est dans au moins une plage de valeurs cibles de débit volumique d'entraînement total (QASB1, QASB2, QASB3, QASB1') par rapport à un ensemble (0, QASB1, QASB2, QASB3, QASB4, QASB1', QASB2', QASB3') de valeurs cibles de débit volumique d'entraînement total possibles (QAS), et - délivrer les solides haute densité (DS) avec le débit volumique de distribution (QF) avec une valeur cible de débit volumique de distribution (QFS) en générant le débit volumique d'entraînement total (QA) avec la valeur cible de débit volumique d'entraînement total (QAS) déterminée en ajustant le premier paramètre de pompe (P5) à la valeur cible de premier paramètre (P5S) déterminée et le second paramètre de pompe (P7) à la valeur cible de second paramètre (P7S) déterminée.
EP21700156.9A 2020-01-10 2021-01-04 Procédé de fonctionnement d'une pompe à solides haute densité et pompe à solides haute densité Active EP4088027B1 (fr)

Applications Claiming Priority (2)

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DE102020200261.4A DE102020200261A1 (de) 2020-01-10 2020-01-10 Verfahren zum Betreiben einer Dickstoffpumpe und Dickstoffpumpe
PCT/EP2021/050019 WO2021140068A1 (fr) 2020-01-10 2021-01-04 Procédé de fonctionnement d'une pompe à solides haute densité et pompe à solides haute densité

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EP4088027B1 EP4088027B1 (fr) 2024-02-28

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US (1) US20230026231A1 (fr)
EP (1) EP4088027B1 (fr)
KR (1) KR102879163B1 (fr)
CN (1) CN114981539B (fr)
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WO (1) WO2021140068A1 (fr)

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DE102024206770A1 (de) 2024-07-18 2026-01-22 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Steuerung eines hydraulischen Antriebsystems und hydraulisches Antriebsystem

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DE102020200261A1 (de) 2021-07-15
CN114981539B (zh) 2024-08-02
US20230026231A1 (en) 2023-01-26
KR102879163B1 (ko) 2025-10-30
KR20220119057A (ko) 2022-08-26
CN114981539A (zh) 2022-08-30
EP4088027B1 (fr) 2024-02-28
WO2021140068A1 (fr) 2021-07-15

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