CN107208630A - Eccentrie helical totorpump and tune equipment, method with automatic regulating system - Google Patents
Eccentrie helical totorpump and tune equipment, method with automatic regulating system Download PDFInfo
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- CN107208630A CN107208630A CN201680007394.0A CN201680007394A CN107208630A CN 107208630 A CN107208630 A CN 107208630A CN 201680007394 A CN201680007394 A CN 201680007394A CN 107208630 A CN107208630 A CN 107208630A
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- Prior art keywords
- stator
- governor motion
- eccentrie helical
- helical totorpump
- tune
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/81—Sensor, e.g. electronic sensor for control or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/811—Actuator for control, e.g. pneumatic, hydraulic, electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/17—Tolerance; Play; Gap
- F04C2270/175—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The present invention relates to a kind of eccentrie helical totorpump, the eccentrie helical totorpump has stator rotor system, and stator rotor system includes the rotor with multi-rotor screw and has female stator.Stator includes support component and elastomer member, wherein, support component partly surrounds elastomer member throughout the circumferential.According to present invention provide that, stator rotor system have be used for adjust setting son governor motion.Governor motion is coupled by control device with least one sensor for determining stator rotor system and/or the actual operation parameters of eccentrie helical totorpump, wherein, governor motion can be manipulated by control device in the case of with reference to the actual operation parameters determined by least one sensor.The invention further relates to the method for the running status for adjusting eccentrie helical totorpump.
Description
Technical field
The present invention relates to a kind of eccentrie helical totorpump of feature according to the preamble of claim 1 and 7 and for adjusting
The method of the running status of eccentrie helical totorpump.
Background technology
The present invention relates to the eccentrie helical totorpump for medium that convey liquid and/or granular.
Eccentrie helical totorpump is for conveying medium, especially sticky, highly viscous and abrasion medium (for example
Mud, liquid fertilizer, stone oil ＆ fat) pump.In this case, driven, spiral rotor is rolled in the stator.
Stator is the housing for the inner side coiled with screw shaped.In this regard, rotor implements eccentric turn with its main body axis around axis stator
Dynamic motion.External screw rod, i.e. stator have the form of double thread, and multi-rotor screw is only single line.Rotor is generally by high resistance
Material, such as steel of abrasion are constituted.And stator is made up of elastomeric material, such as rubber.By rotor and the specially-shaped of stator,
Sealed cavity is formed between rotor and stator, and when rotor is rotated, cavity is moved and pumped (conveying) medium axially forward.It is right
This, cavity volume keeps constant, from without crushing pumped (conveying) medium.In suitable design, not only may be used by eccentrie helical totorpump
Trandfer fluid, and can conveying solid substance.
In order to form conveying space and in order to convey respective media with small backflow as far as possible, rotor adds in pressure
Abutted under load stator on the inwall that elastomeric material is formed.Due to being usually the rotor of metal in materials such as usually rubber
Moved within the stator of composition, certain abrasion or abrasion can be produced to stator.Due to abrasion reduce rotor and stator it
Between the loading that is stressed the power that reclines, can not especially maintain between the stator and the rotor along continuous, spiral contact line
Contact, thus reduce the efficiency of eccentrie helical totorpump.This, which is particularly suitable for use in, must pull against big suction head or high back-pressure
The eccentrie helical totorpump of power.Stator must be regularly changed on this basis.
In order to draw the time point of stator replacing, such as, using sensor, sensor detects stator according to physical parameter
Abrasion.The A1 of DE 10157143 describe the display of a kind of service intervals to eccentrie helical totorpump or remaining runtime.Sensing
Device detects the operational factor related to abrasion, and the operational factor is detected by control unit.Control unit is drawn according to the parameter
Need expected operation time or until maintenance next time or replacing determine the overdue cycle of operation value of part.
DE 202005008989 discloses a kind of eccentrie helical totorpump, and there is the monitoring to stator feature and abrasion to fill for it
Put, wherein, it is that divided stator matches somebody with somebody at least one measuring receiver, by the measurable stator in rotor rotation process of measuring receiver
Or the compression and/or motion of elastomeric material.
For example retouched in document JP 2011112041A, JP2010281280A, JP2009235976A and JP20101104 A
Other schemes that sub-state is monitored with induction mode are stated.
In order to make stator application longer time, it is also known that have can accurate adjustment stator.DE3433269A1 describes one kind
Stator outer housing with the clamping device in turnbuckle form, clamping device divides on the whole axial length of stator outer housing
Cloth.This causes the weight of stator-rotator-system to significantly improve.In addition, being filled in order to which accurate adjustment must individually tense all clamp
Put.
EP 0292594A1 are disclosed outside a kind of stator outer housing provided with longitudinal crack for eccentrie helical totorpump, the stator
Cover has clamping device only in its pressure span, and it is used to produce pressure and for carrying out accurate adjustment in stator wear.Should
Clamping is partially distributed in the length of stator outer housing by suitable ribs.
The A1 of DE 4312123 describe a kind of stator outer housing with longitudinally extending multiple cracks, and crack simplifies essence
Adjust.In order to preferably carry out accurate adjustment in the region of the pressure side end of stator, suction side end of the crack in stator
Nearby terminated before end, and only on pressure side end free-running operation to end.
The A1 of DE 4403979 disclose it is a kind of for eccentrie helical totorpump can accurate adjustment stator, the stator has insertion
Longitudinal crack and with very little spacing terminate at stator suction side end before longitudinal crack.Desirably, split longitudinally in each
Seam all then cracks of insertion.
The content of the invention
The purpose of the present invention is to realize the simple and Rapid matching of stator-rotator-system and running status.
Above-mentioned purpose is by being included in stator-rotator-system of the feature in Patent right requirement 1 and 7 and for adjusting
The method of the running status of whole stator-rotator-system.Other advantageous embodiments are described by dependent claims.
The present invention relates to a kind of eccentrie helical totorpump, the eccentrie helical totorpump has stator-rotator-system.Stator-rotator-be
System includes rotor and stator with multi-rotor screw.According to one preferred embodiment, stator-rotator-system includes having
The rotor of single line multi-rotor screw and the stator with two-wire internal thread.Stator structure is at least two-piece type and including support component
And elastomer member.According to an embodiment of the invention, the elastomer member of stator is arranged in stator outer housing and led to
Often do not have with stator outer housing and be fixedly connected.Fabric portions can also be used or at least local including elastomer portions instead of stator outer housing
The lattice structure of part is used as support component.That is, support component or stator outer housing and elastomer member are normally constructed to separated portion
Point.Support component or stator outer housing at least partially surround elastomer member throughout the circumferential.Especially, support component or stator
Outer cover surrounds the major part of elastomer member, so that the free outer end region of only elastomer member reaches support component or fixed
It is surrounded by it outside sub- outer cover and not.
Stator especially stator system, as described in DE 102005042559A1.Due in elastomer portions
It is not fixedly connected between part and support component or stator outer housing, elastomer member being capable of axial deformation.In deformation, stator holds
Product keeps constant.Thus the axial deformation of elastomer member also results in the horizontal stroke of the elongated hole for guided rotor of elastomer member
The alternation of cross-section.Thus, change extraly pretension, extruding force i.e. between the stator and the rotor for the abrasion of balanced stator
Become, i.e. can also be used the accurate adjustment to stator or tune to set, so as to adjusted according to different service condition eccentrie helical totorpump stator and
Pretension between rotor.
Stator-rotator-system of eccentrie helical totorpump has the pretension change for being used for making stator and the tune that accurate adjustment is carried out to it
Save mechanism.Another pretension of stator-rotator-system is needed according to the running status of eccentrie helical totorpump.Pretension is for example produced with conveying
The viscosity of product, product mixture etc. is related.Running status is particular by different operational factor (such as pressure, rotating speed, moment of torsion
And/or other operational factors) draw.Governor motion couples with regulator control system and is manipulated and controlled by the regulator control system
System.Especially regulator control system includes being used for the actual operation parameters for drawing stator-rotator-system and/or eccentrie helical totorpump at least
One sensor and the control device that governor motion is set for adjusting.That is, governor motion by control device with for draw stator-
At least one sensor connection of rotor-system and/or the actual operation parameters of eccentrie helical totorpump.With reference to by least one
Governor motion is manipulated by control device in the case of the actual operation parameters that sensor is drawn.
Different physical and the abrasion shape of stator in stator-rotator-system is set up according to the regulating and controlling mechanism of the present invention
Relation between state or between pretension between the stator and the rotor.For example set up in physical parameter pressure, moment of torsion, circulation
The relation between pretension between amount, rotating speed and/or viscosity and the state of wear or stator and rotor of stator.For making the pass
It is that most direct parameter coordinated with each other is stress state in the elastomeric material.This can be directly by elastomer material
Corresponding sensing device in material is determined, or the reagency of other components can be drawn indirectly by elastomer, for example, pass through
Elastomer is to the reagency of stator wall, especially support component or stator outer housing or by elastomer to wherein the one of elastomer member
The reagency of individual side, by elastomer the reagency of locking part is drawn, the locking part be for example made up of two housings and
Support component or stator outer housing are kept together.
By the regulation and control rule according to the present invention, set up such as pressure, moment of torsion, circulation, rotating speed and deposit in the elastomer
Pretension correlation and next draw and set the corresponding adjusting position of governor motion for adjusting, the governor motion should be fitted
Close to adjust and set optimal operating point.After auto-calibration is carried out to governor motion, the physics fortune of eccentrie helical totorpump is remeasured
Row parameter is simultaneously therefrom drawn, if reach optimal running status.If the operational factor measured and desired theoretical parameter are not
Unanimously, then recalculate regulation stroke and correspondingly adjust and set governor motion.
According to the preferred make of the present invention, actual regulation and control parameter is the stress state in elastomer, should
Stress state such as measured with indirect form and with other operational factors, the rotating speed of such as eccentrie helical totorpump be combined it is defeated
Go out to move closer to regulation stroke x and/or the regulation direction of desired theoretical value.
Preferably provide, the regulation stroke x imputed out and/or regulation direction are adjusted with Asymptotical Method.Especially connect step by step
The optimal tune of nearly governor motion is set.When theory-reality-deviation is located at outside the tolerance determined, governor motion is adjusted and determined
Numerical value.According to the regulation and control of present invention rule, based on theory ,-actual-data for comparing and being stored in regulation and control regular interior are true
Set the tone and save direction, adjusting size corresponds to predetermined numerical value.By this way, desired theoretical value is especially moved closer to,
Until theory-reality-the deviation measured is located within the tolerance determined.
According to one preferred embodiment, two tune that governor motion includes being arranged in stator-rotator-system set member
Part, tune sets the mutual gap variable of element.In the first operating position, adjust for two and set element each other with the first spacing, and
In the second operating position, adjust for two and set element each other with the second spacing, wherein, the first spacing is not equal to the second spacing.It is fixed
Cross section and length horizontal stroke relative to elastomer member in first position of the elastomer member of son in the second operating position
Section and length are changed.
Preferably, there are mechanical attachment and/or connection between governor motion and stator, especially in governor motion and stator
There are this connection and/or connection between elastomer member.Adjusted by changing two of governor motion and set between relative between element
Away from so that the cross section of the elastomer member of stator and length change.
Preferably provide, one of tune sets position of components and is fixedly placed in stator-rotator-system and another tune
If position of components is changeably arranged in stator-rotator-system.Especially first tune sets position of components and is fixedly placed on support member
On part or stator outer housing, and the second tune sets position of components and is changeably arranged on the elastomer member of stator.It is excellent according to one
The embodiment of choosing, the first tune sets the flange that position of components is fixedly placed on the free end of support component or stator outer housing
On, and position is variable second adjusts and set element and be arranged on the free end of the elastomer member of stator.
According to an embodiment of the invention, actuator is manipulated by control device, actuator causes position variable
Second adjusts and sets element repositioning, and therefore change position it is variable second adjust set that element and position fix first to adjust to set member
Relative spacing between part.The tune for setting the relative spacing between element is adjusted to set and can be carried out by different modes at two.For example
Wedge-shaped element, cambridge ring, the mechanism with rotation shaft regulated device, cylinder auxiliary body etc. can be used as actuator.
According to an embodiment of the invention, the position that at least one first sensor may be arranged at eccentrie helical totorpump is consolidated
On part fixed, for stator-rotator-system distribution, the detectable stator-rotator-system of at least one first sensor
The physical parameter of determination.Alternatively or additionally, at least one second sensor may be arranged in stator-rotator-system, especially
On the elastomer member of its stator.In addition, alternatively or additionally, at least one 3rd sensor is arranged in into governor motion
On.
For example, at least one first sensor is configured for measuring the pressure of eccentrie helical totorpump, rotating speed, moment of torsion, temperature
And/or volume flow, and at least one second sensor is configured for either directly or indirectly measuring stator-rotator-system
Stator and rotor between pretension.Second sensor for example can be piezoelectric element, pressure gauge or dielectric elastomer.Second sensing
Device also may be configured to so that can measure the reagency of elastomeric material whereby, and at least one 3rd sensor may be configured to
Second variable for measurement position, which adjusts the position for setting element and/or adjusted for measurement position is fixed first, sets element and position
Variable second adjusts the relative spacing set between element.
The invention further relates to a kind of running status for being used to adjust the eccentrie helical totorpump with said stator-rotor-system
Method.
The actual motion state of eccentrie helical totorpump is inquired about first.Inductively draw on eccentrie helical totorpump herein
At least one physics of the actual operation parameters of at least one physics and/or elastomer member on stator-rotator-system
The actual operation parameters of at least one physics of actual operation parameters and/or governor motion.Then, make inductively to draw
Actual operation parameters be compared with known or desired theoretical operational factor.This compare in particular according to be stored in control dress
Data in putting are carried out.If drawing between actual operation parameters and theoretical operational factor there is deviation when relatively, manipulate
Governor motion sets son to adjust.In this regard, monitoring new operation shape by the control of the actual operation parameters at least one physics
The tune of state is set.
According to the first preferred embodiment, have partially between the actual operation parameters measured and theoretical operational factor drawing
When poor, calculate the required regulation of the regulation stroke of governor motion and governor motion is correspondingly manipulated and adjusts what is imputed out
Stroke is adjusted, this realizes accurate adjustment to stator or tune is set, and especially changes cross section and the length of the elastomer member of stator.
According to an alternative embodiment, running status is set by moving closer to preferable operating point to adjust.To this
Principle of adjustment and control or regulation and control rule are based on following operation principle：For the first rotating speed dispensed volume flow of eccentrie helical totorpump.This is outstanding
It is in the case where volumetric efficiency is 100%, and volume flow is just to correspond to this turn by each delivery element (conveyor chamber)
Speed is from the suction side of eccentrie helical totorpump to the volume on the pressure side conveyed.
The operating point for setting eccentrie helical totorpump is now most preferably adjusted in the following manner：If it is determined that adjustable range in rotating speed
View volume flow in the case of constant, it is determined that, the volume flow is approximately constant in longer scope.But it is this
Required driving torque is not constant.If slowing down pretension, cause to turn round by relatively low frictional dissipation because pretension is smaller
Square is reduced.In the scope that volume flow does not change, because also having no or only the backflow of very little, the efficiency of eccentrie helical totorpump
Improve.Only reach that the efficiency of eccentrie helical totorpump is just reduced because pretension reduces and backflow increased operating point occurs.It is most efficient
Thus the point of rate can intuitively be described as：The ideal operating point of pump is located just between rotor and stator in the presence of big just as they were
Pretension position so that without or have the backflow of very little.Preferable operating point is just to be produced in rotor-stator-system
The point of the raw pretension needed in order to counter-pressure needed for being produced by medium back flow as small as possible.
The working method is used to regulate and control rule, wherein especially carrying out Asymptotical Method, preferable running status is set to adjust.Root
According to an embodiment of the invention, regulation and control rule preferably uses measurements described below principle：Eccentrie helical totorpump is detected first
Determination operational factor.For example by suitable sensors measure pressure, rotating speed, moment of torsion (Motor Current) or other operations
Parameter.Such as also can by volume flow measurement instrument, flow-through orifice detect volume flow.
Now, governor motion is made to run in the position at least closed as far as possible, such as two tune set member in the position
Part is maximally approached each other.Thus the rubber of elastomer member is extruded, so that improving pre- in stator-rotator-system
Tightly and thus minimize backflow.
After ensuring to adjust the region for having set abundant extruding, governor motion is again turned on slowly and controllably.In this regard,
Point of the volume flow from starting to determination keeps constant as far as possible.It is determined that point at volume flow intrusion because stator-turn
Backflow increase in son-system.Preferable operating point is located at before the point of entry nearby.Preferable operating point can also be regarded as partially
Heart screw pump shows the region of the determination of its best efficiency.
Preferably, independently adjusted at definite intervals by regulating system within rotor-stator-system and set pre-
Tightly.Thus it can ensure that the tune of active sets or matched with the service condition of the change of pump.
Alternately, the pre- of stator-rotator-system can be improved according to the operational factor and progressive regulation process measured
Tightly, until reaching the volume flow of maximum.Pretension is improved to the regulation of quantification again when reaching the volume flow of maximum
Increment.Therefore ensure that more than iBP.By the way that next gradually reduction pretension draws iBP and carries out tune and sets.The process is to determine
Time interval is repeated.Thus the running status to change is made a response.
According to one preferred embodiment, after the regulation of governor motion, looked into again according to the time interval of definition
Ask the actual motion state of eccentrie helical totorpump and be compared with theoretical operational factor.This is controllably adjusted.If
Also have between the actual operation parameters and theoretical operational factor of eccentrie helical totorpump deviation, particular on determination the margin of tolerance it
Outer deviation, then manipulate and adjust and set governor motion again.If setting son by adjusting to set governor motion and therefore accurate adjustment or adjust
The deviation between actual operation parameters and theoretical operational factor can fully be reduced, then without further regulation.Replace,
Again through the defined running status for inductively measuring and examining the tune of eccentrie helical totorpump to set after another time interval of definition.
And if drawn in the actual motion state of first time inquiry eccentrie helical totorpump in actual operation parameters and theory
There is no deviation between operational factor, typically without it is determined that the margin of tolerance outside deviation, then definition time interval it
The actual operation parameters of eccentrie helical totorpump are inquired about again by measuring actual operation parameters afterwards and compare the actual motion again
Parameter and theoretical operational factor.By periodically being inquired about with the time interval of definition, continuous operation constantly monitor stator-turn
Son-system.Thus can in time be calibrated in continuous operation and adjust and desired running status deviation.
According to an embodiment of the invention, inductively draw the pressure of eccentrie helical totorpump, rotating speed, moment of torsion,
Temperature and/or volume flow.Alternatively or additionally, the pretension and/or elastomer member between measurement rotor and stator
The reagency of elastomeric material.Furthermore, it is possible to sensing mode draw governor motion at least one tune set element position and/
Or two of governor motion adjust the relative spacing set between element.
The tune for including two gap variables according to the governor motion of the present invention sets an embodiment of element, passes through increase
Or two tune of reduction set the relative spacing between element the regulation of mechanism is adjusted.Two are adjusted the spacing set between element to change
The cross section and length for becoming the elastomer member for the connection for causing stator-rotator-system change.It is fixed to be based in this regulating and controlling mechanism
The physical parameter inductively drawn of son-rotor-system calculates two and adjusts the theoretical spacing set between element, and especially
Calculate the regulation stroke that the second variable tune of position sets element.Then manipulate governor motion and adjust the position imputed out variable
Second adjusts the position for setting element, especially thus adjusts two imputed out to adjust the spacing set between element.Another time interval it
After redeterminate physical operating parameter.And if the deviation of desired actual value is reduced, this is expressed as the new of eccentrie helical totorpump
Running status.Set by further accurate adjustment or adjust, can make the new running status of eccentrie helical totorpump further to it is desired most
Good running status.And if the deviation of desired actual value is not reduced, the further regulation of mechanism is adjusted.The present invention
It is directed to stator-rotator-system for eccentrie helical totorpump and the regulation and control to this system.The invention particularly relates to for changing
Between the stator and rotor of eccentrie helical totorpump (that is, soft component (elastomer member) and harder component (support component),
For example between so-called stator outer housing) pretension automatic regulating system.Major advantage is that eccentrie helical totorpump is in each time
Point can all be run in optimal operating point, and this causes the energy efficiency of stator-rotator-system to significantly improve.
The auto-control of pretension especially realizes automatic wear-compensating, so as to use stator for a long time.Pass through
The program in connection and/or disconnection determined, can be by adjusting setting to reduce starting friction torque.
In addition, can advantageously make the pretension between stator and rotor with being transmitted the viscous of medium by automatic regulating system
Degree is adapted.
It may include the one or more features and/or characteristic of device noted earlier instead of or except features described above, this method.
Similarly, alternatively or additionally, the device can have the single or multiple features and/or characteristic of methods described.
Brief description of the drawings
Embodiments of the invention and its advantage should be elaborated with reference to the accompanying drawings below.The chi of each element each other in the accompanying drawings
Very little ratio is not consistent with full-size(d) ratio all the time, because compared to other elements, some shapes show with being simplified and
In order to be preferably illustrated other shapes it is exaggerated show.
Fig. 1 shows the schematic partial view (prior art) of known stator-rotator-system；
Fig. 2 shows the schematic partial view of the first embodiment of stator-rotator-system according to the present invention, should
Stator-rotator-system has governor motion；
Fig. 3 schematically shows the flow for adjusting the regulating and controlling mechanism for setting stator-rotator-system；
Fig. 4 shows the ideal operating point related to the regulation stroke of governor motion.
Similar elements or effect identical element to the present invention use identical reference.In addition risen in order to clear
See, reference necessary to explanation respective drawings is shown merely in various figures.Shown embodiment is only example
If the example of the equipment or the method according to the invention according to the present invention is realized, and these examples are not the limits of closure
System.
Embodiment
Fig. 1 shows the schematic partial view of known stator-rotator-system 1 for eccentrie helical totorpump.This germline
System 1 includes usually metal, the rotor (not shown) that single line spirals and the stator 3 with double thread.In eccentrie helical totorpump
During operation, rotor implements the eccentric rotational motion around stator longitudinal axis X3 with its main body axis.Stator 3 includes elastomer member
4 and stator outer housing 5, wherein, it is not fixedly connected between elastomer member 4 and stator outer housing 5.
Fig. 2 shows the schematic partial view of the first embodiment of stator-rotator-system 10 according to the present invention,
Stator-rotator-system has for accurate adjustment or adjusts the governor motion 12 of setting 3.Governor motion 12 includes fixed first and adjusted
If the second variable tune of element 13 and position sets element 14.Adjust for two and set element 13,14 mutual spacing changes so that elastomer
Deformation, and therefore cause the cross section of the elastomer member 4 of stator 3 and/or length to change and thus cause the elasticity of stator 3
The accurate adjustment of body component 4 or tune are set.Flange 23 especially on stator outer housing 5 is used as fixed tune and sets element 13, and is arranged in
Operating element 24 on the free end 8 of elastomer member 4 is used as the variable tune in position and sets element 14.
Governor motion 12 couples with regulator control system 30 and is manipulated and controlled by regulator control system.Regulator control system 30 includes control
Device 32 processed and at least one sensor 35 run ginseng for the physics of measurement stator-rotator-system 10 or eccentrie helical totorpump
Number.At least one first sensor 36 is especially set on eccentrie helical totorpump, for measurement pump pressure, rotating speed, temperature and/or
Volume flow.In addition, at least one second sensor 37 can be arranged on elastomer member 4, at least one second sensor
For example draw the pretension between rotor and stator 3 or between the reagency of elastomeric material.In addition, can on governor motion 12
At least one 3rd sensor 38 is set, and the variable tune of at least one 3rd sensor such as detecting location sets the position of element 14
Put or tune that position is fixed sets the variable tune of element 13 and position and sets relative spacing between element 14.It will be obtained with induction mode
The data gone out send control device 32 to, and control device compares the data with theoretical operational factor, and in the reality measured
Have between border operational factor and theoretical operational factor and the corresponding regulation of regulating system 12 is manipulated during deviation, is especially changed fixed
Tune sets the regulation that the variable tune of element 13 and position sets the relative spacing between element 14, thus causes distortional elastomer and thus
Cause cross section and/or the change of length of the elastomer member 4 of stator 3.
Fig. 3 schematically shows the flow for adjusting the regulating and controlling mechanism for setting stator-rotator-system 10 according to Fig. 2.Root
The different physical operating parameters in stator-rotator-system 10 or eccentrie helical totorpump are set up with determining according to the regulating and controlling mechanism of the present invention
The state of wear or the relation of the pretension between the stator 3 and rotor of eccentrie helical totorpump of son 3.For example, setting up in physical parameter
The relation of the state of wear or the pretension between stator 3 and rotor of pressure, circulation, rotating speed and/or viscosity and stator 3.Make
Relation parameter the most direct coordinated with each other is the stress state in elastomeric material.This can be directly by elastomer material
Corresponding sensing device 37 in material determines, or indirectly by elastomer to other components, for example to stator wall, especially stator
The reagency of side, the locking element of stator outer housing 5, the rotor of stator-rotator-system 10 of outer cover 5 or elastomer member 4 etc.
It is determined that.
Alternately and/or extraly refer to the parameter that can be measured on eccentrie helical totorpump, such as pump pressure, eccentric spiral shell
The rotating speed of bar pump operation, the temperature of pumped (conveying) medium, volume flow etc..
By the relation that such as pressure, circulation, rotating speed and required pretension are set up according to the regulation and control rule of the present invention, and
The corresponding regulation stroke that governor motion 12 is set for adjusting is drawn based on this, the governor motion, which should be adapted to adjust, sets optimal operating point.
Sensor 38 especially can be set, the sensor show that the variable tune in the virtual condition of regulating system, especially position sets element 14
Position or set the variable tune of element 13 and position in fixed tune and set relative spacing between element 14, and/or be provided for
Exchanged when the variable tune of adjusting position sets the position of element 14 and set the sensor 38 that desired theoretical position is monitored.
The operational factor drawn with induction mode gives the situation of the running status on eccentrie helical totorpump.The operation is joined
Number is by control device 32 (referring to Fig. 2) compared with the operational factor defined, and the operational factor of definition is for example stored in control
In indicatrix in device 32 or in form.If there is no deviation between actual operation parameters and theoretical operational factor,
System is without reaction.Replace, remeasure actual operation parameters after time interval Δ t1 and be compared, from
And the running status of periodic monitoring or control eccentrie helical totorpump or stator-rotator-system 10.
And if having deviation between actual operation parameters and theoretical operational factor, then control device 32 is according to the spy of storage
The form for levying curve or storage show that governor motion 12 needs the regulation of progress and correspondingly manipulates the governor motion.In regulation
After the automatic calibration of mechanism 12, eccentrie helical totorpump or stator-rotator-system are remeasured after another time interval Δ t2
10 physical operating parameter and therefrom draw again, if reach optimal running status or whether keep optimal operation shape
State.If the operational factor measured and desired theoretical operational factor are inconsistent, regulation is recalculated by control device 32
Stroke, and accurate adjustment correspondingly is carried out to governor motion 12.Progressive tune is carried out particularly by regulation and control rule to set, such as below with reference to figure
As 4 is described.
Even if the desired optimal operational condition of eccentrie helical totorpump is reached by regulation, also by with the time interval of definition
Δ t3 regularly detects operational factor and is enduringly monitored, and accurate adjustment governor motion again if necessary, to realize bullet
Property body optimal deformation, and therefore realize eccentrie helical totorpump in continuous operating optimal operational condition.
Fig. 4, which shows to be adjusted according to the regulation stroke n of governor motion, sets preferable operating point.For the determination of eccentrie helical totorpump
The volume flow Q that rotating speed distribution is determined.Especially, in the case where volumetric efficiency is 100%, volume flow Q is just by each
Individual delivery element (conveyor chamber) is corresponding to the rotating speed from the suction side of eccentrie helical totorpump to the volume on the pressure side conveyed.
The ideal operating point iBP for setting eccentrie helical totorpump is now most preferably adjusted by the following method：If in governor motion really
View volume flow Q in the case of invariablenes turning speed on fixed regulation stroke n, it is determined that volume flow Q is in longer regulation stroke n
On be approximately constant.But required moment of torsion (not shown in the graph in fig. 4) is not constant.If by correspondingly adjusting
If and/or the tune of repositioning governor motion sets element and slows down pretension, then passing through relatively low friction because pretension is smaller and damaging
Consumption causes moment of torsion reduction.In the adjustable range that usual larger, volume flow Q does not change at least substantially, because not having also
Or the only backflow of very little, the efficiency raising of eccentrie helical totorpump.Only reach the increased operating point of appearance backflow, eccentrie helical totorpump
Efficiency just reduce.Highest efficient point is preferable operating point iBP, and thus can be intuitively described as：Eccentrie helical totorpump
Ideal operating point iBP be located just in regulation stroke n such region of governor motion, in this region in rotor and stator
Between there is big pretension just as they were so that there is no or almost no backflow.Preferable operating point iBP is in rotor-fixed
The point of the pretension needed for counter-pressure needed for being produced in the case of without medium back flow is just produced in son-system.
The working method is used for new regulation and control rule, wherein especially moving closer to preferable running status iBP.According to this hair
A bright embodiment is regular using the regulation and control of following measuring principle：
1. detecting the operational factor of eccentrie helical totorpump, such as pressure, rotating speed, moment of torsion (Motor Current) are detected if necessary
Volume flow Q, wherein, measured such as by volume flow measurement instrument, flow-through orifice.
2. adjusted by governor motion and set rotor-stator-system：It is adjusted first.The rubber of elastomer member is extruded,
So as to flow back=0 or essentially 0.Especially when increasing extruding, volume flow Q is reduced, because the chamber of the pump chamber of eccentrie helical totorpump holds
Product is smaller all the time.
3. if the ensuring that fully extruding in this region, then be adjusted again.In this regard, volume flow Q is from starting to true
Fixed point keeps constant.Volume flow Q declines at this point, because the backflow increase in stator-rotator-system.Preferably
Operating point iBP is located at before the drop point nearby.The region fully extruded for example can according to the measured value of volume flow Q come
Go out.When governor motion is closed, volume flow Q is improved.Slowly decline when the volume flow no longer changes or in volume flow Q
When, more than maximum.
4. independently set at definite intervals within rotor-stator-system according to the 3rd point of tune, so that it is guaranteed that root
Actively adjusted according to the service condition of the change of pump and set or adjust.
The present invention is described in the case of reference preferred embodiment.But those skilled in the art are contemplated that energy
It is enough to enter line translation or change to the present invention, and the protection domain of the claims below will not be left to this.
Reference numerals list
1 stator-rotator-system
3 stators
4 elastomer members
5 stator outer housings
8 free ends
10 stator-rotators-system
12 governor motions
13 the first tune fixed set element
The second variable tune of 14 positions sets element
23 flanges
24 operating elements
30 regulator control systems
32 control devices
35 sensors
36 first sensors
37 second sensors
38 3rd sensors
Δ t time intervals
The preferable operating points of iBP
N adjusts stroke
Q volume flows
X longitudinal axis
Claims (17)
1. a kind of eccentrie helical totorpump, the eccentrie helical totorpump has stator-rotator-system (10), the stator-rotator-system
Including the rotor with multi-rotor screw and the female stator (3) of tool, the stator (3) includes support component (5) and elasticity
Body component (4), wherein, the support component (5) at least partially surrounds the elastomer member (4) throughout the circumferential, its
It is characterised by, the stator-rotator-system (10), which has, is used for the governor motion (12) that tune sets the stator (3), the regulation
Mechanism determines stator-rotator-system (10) and/or the actual operation parameters of eccentrie helical totorpump by control device (32) with being used for
At least one sensor (35) connection, wherein, with reference to by least one sensor (35) determine actual operation parameters
In the case of can pass through the control device (32) and manipulate the governor motion (12).
2. eccentrie helical totorpump according to claim 1, it is characterised in that the governor motion (12) is described including being arranged in
Two on stator-rotator-system (10) adjust and set element (13,14), the tune set the mutual spacing of element be it is variable, its
In, being set in the tune of the governor motion (12) between element (13,14) and stator (3) has mechanical attachment and/or connection, so that logical
Cross and change described two elastomer members (4) for adjusting the relative spacing set between element (13,14) to enable to the stator
Cross section and length change.
3. eccentrie helical totorpump according to claim 2, it is characterised in that the first tune sets element (13) position and is fixedly arranged
On the stator-rotator-system (10), and it is another second adjust set element (14) position be changeably arranged in the stator-
On rotor-system (10).
4. eccentrie helical totorpump according to claim 3, it is characterised in that position it is variable second adjust set element (14) in order to
Changing first fixed relative to position adjusts the spacing for setting element (13) can be by the cause that is manipulated via the control device (32)
Move device and reposition.
5. eccentrie helical totorpump according to any one of the preceding claims, it is characterised in that at least one first sensor
(36) it is arranged on the eccentrie helical totorpump；And/or at least one second sensor (37) is arranged in the elasticity of the stator (3)
On body component (4)；And/or at least one 3rd sensor (38) is arranged on the governor motion (12).
6. eccentrie helical totorpump according to claim 5, it is characterised in that the first sensor (36) is configured for surveying
Measure pressure, rotating speed, temperature and/or the volume flow of the eccentrie helical totorpump；And/or the second sensor (37) is configured to use
In the pretension and/or reagency of the elastomeric material for measuring the elastomer member (4)；And/or the 3rd sensor (38)
It is configured for the second variable tune of measurement position to set the position of element (14) and/or set for the first tune of measurement position fixation
The second variable tune of element (13) and position sets the spacing between element (14).
7. the method for the running status for adjusting the eccentrie helical totorpump with stator-rotator-system (10), the stator-turn
Son-system (10) includes rotor, stator (3) and the governor motion (12) for adjusting setting sub (3), and the stator includes elastomer
Part (4) and support component (5), methods described include following method steps：
A. by inductively draw at least one physics of the eccentrie helical totorpump actual operation parameters and/or
Inductively draw on the actual operation parameters of at least one physics of the elastomer member (4) and/or to sense
Mode draw the actual operation parameters of at least one physics on the governor motion (12), inquire about the eccentrie helical totorpump
Actual motion state；
B. at least one described actual operation parameters is made to be compared with known theoretical operational factor；
If c. drawing there is deviation between the actual operation parameters measured and theoretical operational factor, the governor motion is manipulated
(12) stator (3) is set to adjust；
D. wherein, set by the control of the actual operation parameters at least one physics to monitor the tune of new running status.
8. method according to claim 7, it is characterised in that drawing in the actual operation parameters measured and theoretical operation
When having deviation between parameter, the regulation stroke (n) of the governor motion (12) is calculated, and wherein, correspondingly manipulates the tune
Section mechanism (12) adjusts the regulation stroke (n) imputed out to adjust the ideal operating point (iBP) of setting sub (3).
9. method according to claim 7, it is characterised in that drawing in the actual operation parameters measured and theoretical operation
When having deviation between parameter, running status is adjusted by setting ideal operating point (iBP) by nibbling method tune.
10. method according to claim 9, it is characterised in that the governor motion (12) is with the stator-turn
The raising of pretension in son-system (10) and be converted to the position at least at utmost closed, followed by controllably opening
The governor motion (12) is adjusted and sets ideal operating point (iBP), and the eccentrie helical totorpump shows it at the ideal operating point
Optimal efficiency.
11. the method according to any one of claim 7 to 10, it is characterised in that the then governor motion (12)
After regulation, definition time interval (Δ t2) after inquire about again the eccentrie helical totorpump actual operation parameters and with
Theoretical operational factor is compared.
12. method according to claim 11, it is characterised in that deposited between actual operation parameters and theoretical operational factor
In deviation, the governor motion (12) is manipulated again.
13. method according to claim 11, it is characterised in that sufficiently reducing actual operation parameters and theoretical fortune
In the case of deviation between row parameter, the warp of the eccentrie helical totorpump is examined again after the time interval (Δ t3) of definition
Adjust the running status set.
14. the method according to any one of claim 7 to 11, it is characterised in that in actual operation parameters and theoretical fortune
When there is no deviation between row parameter, the actual fortune of the eccentrie helical totorpump is inquired about again after the time interval (Δ t1) of definition
Row parameter and it is compared with theoretical operational factor.
15. the method according to any one of claim 7 to 14, it is characterised in that inductively draw described inclined
Pressure, rotating speed, temperature and/or the volume flow of heart screw pump；And/or inductively draw between rotor and stator (3)
Pretension；And/or inductively draw the reagency of the elastomeric material of the elastomer member (4)；And/or to sense
Mode show that at least one tune of the governor motion (12) sets the positions of element (13,14)；And/or inductively survey
Measure the governor motion (12) two adjust the spacing set between element (13,14).
16. the method according to any one of claim 7 to 15, it is characterised in that by increasing or reducing the regulation
Two tune of mechanism (12) set the spacing between element (13,14) regulation of mechanism (12) is adjusted, wherein, pass through two
The spacing that tune is set between element (13,14) changes the elastomer member (4) for the connection for causing the stator-rotator-system (10)
Cross section and length change.
17. the method according to any one of claim 7 to 16, it is characterised in that be only located in the deviation drawn true
When outside the fixed margin of tolerance, the deviation drawn now triggers the manipulation of governor motion.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015101353 | 2015-01-29 | ||
| DE102015101353.3 | 2015-01-29 | ||
| DE102015112248.0A DE102015112248A1 (en) | 2015-01-29 | 2015-07-28 | Eccentric screw pump and method for adjusting the operating state of an eccentric screw pump |
| DE102015112248.0 | 2015-07-28 | ||
| PCT/DE2016/000033 WO2016119775A1 (en) | 2015-01-29 | 2016-01-29 | Eccentric screw pump having an automatic adjustment system and adjustment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107208630A true CN107208630A (en) | 2017-09-26 |
Family
ID=56410000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680007394.0A Pending CN107208630A (en) | 2015-01-29 | 2016-01-29 | Eccentrie helical totorpump and tune equipment, method with automatic regulating system |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20180010604A1 (en) |
| EP (1) | EP3250829B1 (en) |
| JP (1) | JP2018507345A (en) |
| KR (1) | KR20170096638A (en) |
| CN (1) | CN107208630A (en) |
| AU (1) | AU2016212425B2 (en) |
| DE (2) | DE102015112248A1 (en) |
| RU (1) | RU2017130347A (en) |
| WO (1) | WO2016119775A1 (en) |
| ZA (1) | ZA201704734B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135972A (en) * | 2018-05-09 | 2020-12-25 | J·瓦格纳有限责任公司 | Method for operating a conveyor system and conveyor system |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015101352A1 (en) * | 2015-01-29 | 2016-08-04 | Netzsch Pumpen & Systeme Gmbh | Stator-rotor system and method for adjusting a stator in a stator-rotor system |
| GB201514001D0 (en) * | 2015-08-07 | 2015-09-23 | Edwards Ltd | Pumps |
| DE102017100715A1 (en) | 2017-01-16 | 2018-07-19 | Hugo Vogelsang Maschinenbau Gmbh | Control of the gap geometry in an eccentric screw pump |
| DE102019130981A1 (en) | 2019-11-15 | 2021-05-20 | Seepex Gmbh | Eccentric screw pump |
| DE102020111386A1 (en) * | 2020-04-27 | 2021-10-28 | Vogelsang Gmbh & Co. Kg | Condition detection on eccentric screw pumps |
| CN112099220A (en) * | 2020-09-30 | 2020-12-18 | 青岛大学附属医院 | Novel multidirectional microscope bracket for pathological examination |
| DE102021103615A1 (en) * | 2021-02-16 | 2022-08-18 | Vieweg GmbH Dosier- und Mischtechnik | Eccentric screw metering device and method for controlling an eccentric screw metering device |
| DE102021131427A1 (en) | 2021-11-30 | 2023-06-01 | Vogelsang Gmbh & Co. Kg | Eccentric screw pump with work delivery and rest delivery and method for controlling the eccentric screw pump |
| DE102022119147A1 (en) | 2022-07-29 | 2024-02-01 | Ruhr-Universität Bochum, Körperschaft des öffentlichen Rechts | Method for determining or monitoring the flow rate of an eccentric screw pump |
| DE202022107205U1 (en) | 2022-12-23 | 2024-04-22 | Vogelsang Gmbh & Co. Kg | Eccentric screw pump with encapsulated stator lining |
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- 2016-01-29 CN CN201680007394.0A patent/CN107208630A/en active Pending
- 2016-01-29 RU RU2017130347A patent/RU2017130347A/en unknown
- 2016-01-29 DE DE112016000540.7T patent/DE112016000540A5/en not_active Withdrawn
- 2016-01-29 AU AU2016212425A patent/AU2016212425B2/en active Active
- 2016-01-29 JP JP2017540150A patent/JP2018507345A/en active Pending
- 2016-01-29 KR KR1020177021460A patent/KR20170096638A/en not_active Application Discontinuation
- 2016-01-29 EP EP16708338.5A patent/EP3250829B1/en active Active
- 2016-01-29 WO PCT/DE2016/000033 patent/WO2016119775A1/en not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2016212425B2 (en) | 2019-06-13 |
| DE112016000540A5 (en) | 2017-12-21 |
| JP2018507345A (en) | 2018-03-15 |
| RU2017130347A (en) | 2019-03-01 |
| DE102015112248A1 (en) | 2016-08-04 |
| ZA201704734B (en) | 2018-08-29 |
| RU2017130347A3 (en) | 2019-03-01 |
| US20180010604A1 (en) | 2018-01-11 |
| WO2016119775A1 (en) | 2016-08-04 |
| AU2016212425A1 (en) | 2017-07-13 |
| KR20170096638A (en) | 2017-08-24 |
| EP3250829A1 (en) | 2017-12-06 |
| EP3250829B1 (en) | 2020-08-05 |
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