EP3775619A1 - Fluidenergiemaschineneinheit, insbesondere kompressor- oder pumpeneinheit - Google Patents
Fluidenergiemaschineneinheit, insbesondere kompressor- oder pumpeneinheitInfo
- Publication number
- EP3775619A1 EP3775619A1 EP19711302.0A EP19711302A EP3775619A1 EP 3775619 A1 EP3775619 A1 EP 3775619A1 EP 19711302 A EP19711302 A EP 19711302A EP 3775619 A1 EP3775619 A1 EP 3775619A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- wheels
- compressor
- unit
- machine
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/04—Combined pump-turbine units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/003—Having contrarotating parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/022—Units comprising pumps and their driving means containing a coupling a coupling allowing slip, e.g. torque converter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/024—Multi-stage pumps with contrarotating parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/028—Layout of fluid flow through the stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/022—Units comprising pumps and their driving means comprising a yielding coupling, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0686—Units comprising pumps and their driving means the pump being electrically driven specially adapted for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
Definitions
- Fluid energiemaschine unit in particular compressor or
- the invention relates to a fluid energy machine unit, in particular a compressor unit or pump unit, in detail with the features of the preamble of claim I.
- the fluid energy machine unit is designed in a particularly preferred application for use under water.
- a fluid energy machine unit in the form of a compressor unit, in particular an underwater compressor unit, which converts the principle of hydraulic superimposition by the opposing drive of two compressor wheels arranged coaxially with one another in the compression of fluid, is described in WO 2014/083055 A2. With such an arrangement, thorough mixing of fluid present during operation in different phases while avoiding the disadvantages of Grenz Wegenabitesen is possible.
- the underwater compressor unit has for this purpose two coaxially arranged compressor wheels, which are driven in opposite directions via a drive machine system, which is mechanically coupled to the individual compressor wheels.
- the system requires two drive machines, which are designed as electric motors and the associated control systems.
- the electric motors are arranged one above the other in the vertical direction, wherein the vertically upper electric motor with its lower end of the shaft and the vertically lower electric motor with its upper end of the shaft are each mutually coupled with paddle wheels. Between the paddle wheels, a relative speed is generated according to the addition of the rotational speeds of the electric motors.
- frequency converter the ability to set a variety of different operating points on the compressor and to achieve better mixing in the presence of different phases of the fluid to be compressed and to avoid boundary layer detachments.
- the invention is therefore based on the object, a fluid energy machine unit, in particular compressor or pump unit of the type mentioned in such a way that the mentioned disadvantages are avoided.
- the fluid energy machine unit, in particular the compressor or pump unit should be designed to be as compact, simple and robust as possible and the control engineering effort to ensure optimum functionality and the provision of the equipment required for this purpose should be kept as low as possible.
- the control engineering effort to achieve a good mixing is to be kept as low as possible. Separation of the boundary layers during flow must be avoided.
- a fluid energy machine unit in particular a compressor or pump unit with at least one fluid machine in the form of a compressor or a pump with at least two individual impellers or sets of respective impellers coupled together (in a compressor or pump unit with at least two individual compressor or pump wheels or sets each coupled compressor or pump wheels) characterized in that only one drive machine is provided, the at least two power lines with the respective wheels or sets of wheels is connected, wherein at least one of the power strands is designed as a variable power train, ie power train with variably transferable power component.
- a power train is understood in the broadest sense to mean any kind of connection for transmitting power between the prime mover and an impeller or set of impellers. This serves to transfer a power component to one of the wheels or set of wheels.
- the term power train is not limited to a specific structural design but describes as a force-transmitting connection the way of power transmission.
- a set of running wheels may in particular be understood as meaning individual running wheels connected to one another via a rotationally fixed connection or wheels mounted on a common shaft or connected thereto.
- a set of impellers can also be understood to mean arrangements of blade rings which are arranged at a distance from one another and which are connected to one another via a common shaft.
- the single impeller of a compressor or a pump can consist of a ring of blades, vanes, rotor blades, etc., which are attached to a shaft or connected to a shaft.
- the solution according to the invention offers the advantage of a simple and sensitive adjustability of the hydraulic, in particular hydrodynamic superimposition on the fluid energy machine even with a simultaneously compact construction.
- This is achieved by means of at least one variable power train, preferably a constant power train and a variable power train for the connection between drive machine and fluid machine, wherein the power components in the fluid energy machine are brought together again when acted upon by the fluid. It is only a single drive machine provide, the power over at least two power lines on the individual wheels or sets of wheels is divided. Compared to a generic version can therefore be dispensed with a further drive machine and associated frequency converter, which greatly simplifies the control engineering effort.
- a fluid energy machine is understood in particular to mean a machine in which mechanical work is exchanged with a fluid. Depending on the design of these, the fluid energy machine transmits the work either from the outside to the fluid or withdraws energy from the fluid, which is then released to the outside as mechanical work.
- fluid energy machines are also conceivable, which also assume different functions in different operating ranges in the presence of fluids in different states of aggregation, i. Compress gases but promote gas-liquid mixtures.
- the solution according to the invention is preferably added
- Fluid energy machine units application in which the fluid energy machine is present as a compressor or pump.
- a fluid energy machine in the form of a compressor is understood in particular to mean a machine which supplies mechanical work to a fluid, in particular gas, i. be used for compressing gases. They increase the pressure and the density of the gas. In training the
- Fluid energy machine unit as a compressor unit this comprises at least one compressor with at least two, individual wheels forming compressor wheels or sets of each coupled compressor wheels.
- a compressor wheel has the task to compress a fluid and so lift the pressure after the wheel and to promote the fluid.
- the at least one connection on the housing is designed as a connection for supplying a fluid other than the fluid surrounding the housing to the compressor.
- the drive machine is connected to the respective input shafts of at least two separate compressor wheels or sets of compressor wheels coupled to one another via a respective power train, wherein a device for speed / torque conversion is provided in at least one of the power trains.
- the compressor each comprises two compressor wheels or sets of compressor wheels, wherein each of the compressor wheels is connected via a power train to the prime mover.
- the distribution of power can be done directly on the drive machine or at any point between the prime mover and compressor.
- a compressor wheel Under a compressor wheel is understood in particular a rotatable about a rotation axis and one or more guide elements for fluid having component.
- a compressor wheel has the task to compress a medium and so lift the pressure after the wheel and to promote the fluid.
- the fluid power machine unit is designed as a pump unit, it has at least two pump wheels or sets of pump wheels coupled to each other.
- the main function of the pump is to convey or transport incompressible fluid, i. Liquids.
- the provision of a device for speed / torque conversion in at least one of the power trains also makes it possible to completely dispense with the use of frequency converters and, instead, to use more robust mechanical or power converters hydrodynamic systems are used for this purpose. This allows a particularly compact design of the entire fluid energy machine unit can be realized, which is also reliable, robust against environmental influences and inexpensive to produce.
- the hydrodynamic superimposition can be realized and implemented in different ways.
- the input shaft of one of the at least two wheels or a set of wheels is connected to a drive shaft of the prime mover to form the first power train.
- the input shaft of another of the at least two impellers or set of the at least two sets of impellers is then connected to a drive shaft of the prime mover to form a second power train.
- the arranged in one of these two power lines speed / torque converter is designed and arranged to drive the input shaft coupled to this power train in opposite directions to coupled to the other power train input shaft.
- the speed / torque converter device arranged in one of these two power trains is designed and arranged to drive the input shaft coupled to this power train in the same direction as the input shaft coupled to the other power train.
- advantageous flow conditions can be achieved for corresponding applications.
- the prime mover with the input shafts of the wheels or the input shafts of the individual sets of wheels (impellers in the form of compressor wheels or pump wheels) connecting power strands are basically two options.
- the transferable power component can be transmitted stepwise according to a first embodiment or continuously according to a second particularly advantageous embodiment.
- the speed / torque converter is configured to rotate the speed and / or the torque stepwise, i. to be able to convert in predefined fixed and selectable gear ratios
- the speed / torque conversion device is designed to be able to continuously convert the speed and / or torque. Stepless variability offers the advantage of a very sensitive ability to adjust the power components that can be transmitted via both power trains and, depending on the design of the wheels (compressor wheels or pump wheels), the resulting forces acting on the fluid.
- the drive machine and the fluid energy machine are arranged coaxially with one another.
- the two power lines can also be arranged coaxially or eccentrically to drive machine and fluid energy machine.
- the prime mover and the compressor are arranged coaxially with each other.
- the at least two wheels when formed as a compressor unit, the at least two compressor wheels or sets of mutually coupled wheels or compressor wheels are arranged coaxially with each other.
- This design is characterized by low axial and radial dimensions and a high degree of compactness. Versions with coaxial design can be realized in different ways.
- the first power train is designed as a mechanical through drive connection between a drive shaft of the drive machine and the input shaft of one of the at least two wheels or set of wheels, in the form of a compressor unit of the compressor wheels or .
- Set of compressor wheels made.
- the speed / torque converter is provided in the second power train.
- the second power train is formed as a mechanical drive connection between the drive shaft of the prime mover with the input shaft of one of the at least two wheels or set of wheels, coupled in training as a compressor unit of the at least two compressor wheels or set of compressor wheels.
- the second power train in particular the device for speed / torque conversion can be arranged coaxially or eccentrically to the first power train in this case.
- the coaxial variant offers the advantage of a particularly compact fluid energy machine unit, in particular for use as an underwater compressor unit.
- a particularly compact and robust in terms of operation construction is given in forming the device for speed / torque conversion as a hydrodynamic flow gear, in particular hydrodynamic speed / torque converter.
- This comprises at least one impeller, a turbine wheel and a stator, which form a work space which can be filled with operating fluid with one another.
- For variable adjustment of rotational speed or torque of the hydrodynamic speed / torque converter is designed as a variable converter, comprising at least one provided on a blade or a Schaufelradteil adjusting blade and / or an adjustable blade segment, wherein the individual adjusting blade and / or the individual adjustable blade segment on at least one of the Paddle wheels selected from the group of paddle wheels mentioned below:
- the type and arrangement of the adjusting blades is carried out according to the application, preferably embodiments with adjusting blades or blade segments reach the stator used.
- the design with adjusting blades offers the advantage of influencing from the outside and thus the speed control or change the delivery behavior ,
- hydrodynamic speed / torque converter offers the advantage that it can be inserted particularly easily coaxially with the drive machine and fluid energy machine, when it is designed as a compressor unit coaxial with the compressor in the available space between them.
- the assembly produced is characterized by a particularly high degree of compactness.
- the input shafts of the at least two impellers or sets of impellers are arranged coaxially with each other and the impeller of the hydrodynamic speed / torque converter is connected to the connection between the input shaft of the prime mover and an input shaft of an impeller or set of impellers.
- the turbine wheel of the hydrodynamic speed / torque converter is at least indirectly, preferably directly, coupled to the input shaft of the second impeller or set of impellers.
- the hydrodynamic speed / torque converter there are a number of possibilities.
- This can be designed for example as a single-stage or multi-stage converter, as a single-phase or multi-phase converter.
- compressor units in particular underwater compressor units
- at least one first sealing device for fluid-tight and pressure-tight sealing of the drive machine relative to the compressor is preferably provided.
- at least one further sealing device or a further sealing system is provided in a development.
- the sealing device is arranged directly in the region of a passage of the drive shaft, the drive machine can thus be sealed directly opposite the flow gear and the compressor. In this case, it is preferable to provide another sealing device between the flow gear and the compressor. In the simplest case, the arrangement takes place directly between the pump and turbine blade wheel or the directly coupled with these components.
- At least one sealing device is arranged between the latter and the fluid energy machine to avoid unwanted transfer of flow medium into the fluid energy machine.
- the sealing device between the hydrodynamic flow gear and the fluid energy machine can be arranged between impeller and turbine wheel or their coupling with the respective input shafts of the fluid energy machine or directly between the input shafts of the wheels or the sets of wheels.
- the converter can also be operated with the liquid phase of a pumped medium.
- the device for speed / torque conversion is designed as a hydrostatic flow transmission.
- the advantage consists in a reduction of the mechanical components and the utilization of the hydrostatic power transmission inherent advantages.
- the adjustment or control of the variable transferable power component via the use of controllable hydrostatic pumps and / or motors.
- the housing accommodating the prime mover and the compressor is particularly suitable for use in underwater applications.
- the housing can be made in one or more parts. This is either designed and dimensioned to withstand the pressure conditions in underwater applications and / or can be filled with pressure medium.
- the housing has at least one port for coupling to a supply line for a fluid surrounding the housing with different fluid. This applies analogously to at least one connection for dispensing compressed fluid.
- FIG. 1 shows a schematic simplified representation of a first embodiment
- FIG. 2 shows a schematic simplified representation of a second one
- FIG. 3 illustrates a schematically simplified representation of a
- FIG. 4 illustrates, in a schematically simplified representation, an embodiment of an underwater compressor unit
- FIG. 5 shows, in a schematically simplified representation, an embodiment of an underwater compressor unit with a hydrostatic transmission as a power actuator.
- FIG. 1 illustrates, in a simplified schematized representation, a first embodiment of a fluid energy machine unit 1 designed according to the invention, which is designed here in particular as a compressor unit for use in underwater applications as an underwater compressor unit 1.
- This includes a fluid energy machine, in particular a compressor 2 with at least two impellers in the form of compressor wheels 3 and 4, as shown in Figure 1, or as not shown here with at least two sets of each coupled wheels, especially compressor wheels.
- the compressor wheels 3, 4 are so-called running or paddle wheels. One set is formed by several paddle wheels.
- the compressor wheels 3, 4 are arranged coaxially with each other and rotatably supported about a theoretical common axis of rotation R.
- Each of the individual compressor wheels 3 and 4 comprises at least one or more blade sets. In the illustrated case, a plurality of blades arranged in series with each other are provided in each case.
- the individual compressor wheels 3 and 4 are coupled to an engine 5 at least indirectly, forming at least two power trains L1 and L2.
- the individual compressor wheels 3 and 4 are each characterized by compressor wheel input shafts, hereinafter briefly input shafts E3 and E4, which are at least indirectly coupled to the drive machine 5.
- the individual input shafts E3, E4 may be formed integrally with the compressor wheels 3, 4 or may be formed by separate components connected to the compressor wheels 3, 4.
- Drive machine 5 and compressor 2 are arranged in the interior 6 of a housing 7.
- the housing 7 is designed such that it is suitable for use in underwater applications and the drive machine 5 and the Compressor 2 with respect to surrounding the housing 7 environment encapsulates.
- the fluid energy machine unit not shown here, as a pump unit, in particular the so-called water injection pump unit, the fluid to be absorbed via the inlet corresponds to the fluid surrounding the water injection pump unit.
- At least one outlet 9 for discharging fluid compressed in the compressor 2 is provided outside the housing 7. It is conceivable either to provide only such an inlet 8 or such an outlet 9 or, depending on the design of the compressor 2, several of these.
- the compressor 2 is designed with its own housing 10, which surrounds the two compressor wheels 3 and 4.
- the inlet 8 on the housing 7 is coupled to an inlet 11 on the compressor 2, in particular on the housing 10 of the compressor, while the outlet 9 is coupled to the housing 7 with an outlet 19 on the housing 10 of the compressor 2.
- the respective inlet 8 or outlet 9 on the housing 7 is in each case coupled with a corresponding line connection for fluid, which is different from the fluid normally surrounding the housing 7 during underwater use.
- the compression in the compressor 2 is effected by hydraulic superimposition during rotation of the two compressor wheels 3 and 4 with relative speed to each other.
- the respective input shafts E3 and E4 are coupled to a drive shaft 13 of the drive machine 5.
- the coupling takes place via two power lines L1 and L2.
- a first power train L1 serves the direct connection between the drive machine 5 and one of the two compressor wheels, here the first compressor wheel 3.
- the second power train L2 serves to couple the drive machine 5, in particular the Drive shaft 13, with the second compressor 4 and the input shaft E4.
- a device for continuously variable speed / torque conversion 12 is provided in one of the power trains. This device 12 is formed in the simplest case as a hydrodynamic speed / torque converter 14.
- the hydrodynamic speed / torque converter 14 may be single-stage or multi-stage, single-phase or multi-phase.
- the hydrodynamic speed / torque converter 14 is designed for free adjustability of the variable transferable power component further as a variable converter. This means that either a device for influencing the power transmission behavior at the hydrodynamic speed / torque converter 14 itself can be provided or the inflow and outflow of operating medium to the working space can be controlled / regulated.
- At least one of the paddle wheels or paddle wheel parts is preferably formed with at least one adjusting blade or an adjustable blade segment.
- the variable converter is characterized by an adjustment of adjusting vanes 15 on the stator L. This has at least one, preferably a plurality of setting vanes 15, which are actuated via an adjusting device 16. Conceivable and indicated here only with a broken line is also the provision of adjusting devices 17 and 18 for adjusting adjusting vanes or blade segments on the impeller P and / or turbine T.
- the hydrodynamic speed / torque converter 14 is arranged here in the outer power branch to the compressor 2 between the latter and the drive machine 5. That is, impeller P is here at least indirectly connected to the drive shaft 13 of the engine 5, while the turbine T is rotatably coupled to the second input shaft E4. Preferably, the coupling of the impeller P takes place directly with the first power train L1, which is also referred to as a constant power train, as in this no further transmission elements are provided with the possibility of a speed / torque conversion.
- the connection between the drive machine 5, in particular the drive shaft 13, the impeller P, the turbine wheel T via the hydrodynamic coupling and the second input shaft E4 to the second compressor wheel 4 describes the second power train L2.
- Due to the design of the hydrodynamic speed / torque converter 14 as a torque converter is in this power train L2 to a variable power train, that is, via this, the speed can be controlled at the input shaft E4 or also regulated as required.
- the rotational speeds of the input shafts E3 and E4 with respect to the relative speed between them.
- the pressure and volume flow ratio within the compressor 2 can be set according to the desired conditions and requirements.
- FIG. 1 illustrates a minimal configuration of engine 13, compressor 2 and coupling of these via two power trains L1, L2, wherein a variable power actuator is provided in at least one power train. Additional modifications are conceivable.
- the housing 7 may be constructed in one or more parts. All components - prime mover 5, compressor 2, compressor wheels 3, 4 and hydrodynamic speed / torque converter 14 are arranged coaxially with each other, wherein the arrangement of the transducer 14 in the axial direction preferably takes place between the prime mover 5 and compressor 2. Also conceivable is the arrangement, not shown here, viewed in the axial direction in the sequence of prime mover 5, compressor 2 and converter 14 with correspondingly shaped passage.
- the drive machine 5 in the housing is surrounded by the gaseous fraction of a liquid-gas mixture and thus the losses are reduced.
- the converter 14 is operated with the fluid to be delivered therein. In this case, no sealing devices are required to operate.
- the interior of the housing 7 can be subdivided into different spatial regions, these spatial regions being understood as discrete arrangement regions for the respective components.
- the drive machine is assigned a spatial region 6.1, the transducer 14 a spatial region 6.3 and the fluid energy machine 2 a spatial region 6.2.
- a sealing device 20 is provided. This is preferably arranged directly between fluid energy machine 2 and converter 14. In this case, converter 14 and prime mover 5 run in the same environmental conditions.
- the sealing device 20 is arranged between the housing 7 and the drive side of the converter 14, in particular the connection of the turbine wheel T with the compressor wheel 4. Drive machine 5, in particular electric motor and converter 14 are surrounded by the same medium. In this case, no further sealing device is required.
- a sealing device 20 ' between the engine 5 and compressor 2 may be provided. This is then preferably arranged between the output shaft 13 of the engine 5 and housing 7, which is shown here by means of a broken line. The seal 20 ' is then also the delimitation of a first space area 6.1 within the interior 6 of the housing 7, which receives the drive machine 5 against the compressor pressure and fluid-tight.
- the hydrodynamic speed / torque converter 14 may in this case with the compressor 2 in a common Interior area 6.2 may be arranged.
- the sealing device 20 between converter 14 and fluid energy machine 2 is provided.
- a further sealing device or a sealing system 21 between the impeller P of the hydrodynamic speed / torque converter 14 and the first input shaft E3 and the turbine wheel T or coupled to this input shaft E4 is provided.
- the sealing devices 20 and 21 seal the compressor 2 with respect to the transducer 14 to form another interior region.
- the compressor 2 is thus preferably pressure and liquid-tight against the remaining interior 6 of the housing 7 sealed.
- the sealing device 20 ' is preferably provided between the housing 7 or a component connected thereto and the drive shaft 13 of the drive machine 5.
- the second sealing device 21 may preferably be provided directly between impeller P and turbine wheel T, in particular the coupling of the pump impeller P with the input shaft E3 and the input shaft E4 and the input shafts E3 and E4.
- Other versions are also conceivable.
- the sealing device 20 may be provided between the housing 7 and the input shaft E4 or the housing 7 and the turbine wheel T. Avoiding a transfer of fluid between the compressor 2 in the the engine 5 and the speed / torque converter 14 receiving portions 6.1, 6.3 of the interior of the sixth
- the compressor 2 is formed with at least one inlet 8 for fluid to be compressed and a outlet 9 for compressed fluid.
- the compressor 2 is formed in the housing 7 of the compressor unit 1 with its own compressor housing 10.
- the inlet 11 of the compressor housing 10 is for this purpose at least indirectly, preferably directly with an inlet 8 in the housing 7 of the compressor unit 1 for supplying a fluid, which from the the housing 7 surrounding fluid may be different connected.
- the at least one outlet 19 from the compressor housing 10 with an outlet 9 from the housing 7 of the compressor unit 1 is at least indirectly, preferably directly coupled.
- Inlet 8 and outlet 9 from the housing 7 are designed and arranged to be suitable to be connected to corresponding line connections / channels, etc. for the supply and / or removal of fluid.
- FIG. 2 illustrates a further embodiment of a compressor unit designed in accordance with the invention in the form of an underwater compressor unit 1.
- the basic structure and basic function corresponds to that described in FIG. 1, for which reason the same reference numerals are used for the same elements.
- the design differs here only in the design of the compressor 2, in particular of the individual compressor wheels 3 and 4 themselves.
- the compressor wheels 3 and 4 are designed such that each compressor wheel is coupled by a shaft which is coupled to the input shaft E3 or E4 or these forms, is characterized and carries one or more compressor blades.
- the compressor blades of the compressor wheels 3 and 4 are alternating, that is arranged alternately, the compressor blades of the compressor 3 extend radially outward from the input shaft E3, while the input shaft E4 is formed as a Flohlwelle and the corresponding blading on Inner circumference carries.
- the individual blades of the compressor wheels 3 and 4 are each arranged alternately.
- FIG. 3 shows in a further development according to FIG. 1 a design with a set of compressor wheels 3.1, 3.2 and 4.1, 4.2, which are arranged in series with each other, wherein the individual compressor wheels 3.1, 3.2 and 4.1, 4.2 of a set are coupled together and are arranged alternately with the compressor wheels 4.1, 4.2 and 3.1, 3.2 of the other set of compressor wheels. It is crucial that the individual Compressor wheels of a set of compressor wheels are each coupled to one of the input shafts E3 and E4, respectively.
- FIG. 4 illustrates, in a schematically simplified representation, the design of the housing 7 in functional concentration as the housing of the compressor 2 using the example of an embodiment according to FIG. 1.
- the inlet 8 on the housing 7 simultaneously acts as an inlet into the compressor 2. This applies analogously for the outlet 9.
- All embodiments according to FIGS. 1 to 4 are characterized by the coaxial arrangement of all components - drive machine 5, hydrodynamic speed / torque converter 14 and compressor 2. This represents a particularly advantageous embodiment, with minimal space requirement in the radial direction. All rotatable parts are characterized by a common theoretical axis of rotation R. It is also conceivable to provide additional devices between the engine and hydrodynamic speed / torque converter 14 and between the input shafts E3 and E4 of the compressor 2. However, this leads to additional space requirements. Therefore, the coaxial arrangement is preferably used.
- FIG. 5 illustrates, in a schematically simplified representation, a further embodiment of an underwater compressor unit 1, wherein, however, the device for speed / torque conversion in the second power train L2 is designed as a hydrostatic transmission 23 comprising a hydrostatic pump 24 and a hydrostatic motor 25.
- a hydrostatic transmission 23 comprising a hydrostatic pump 24 and a hydrostatic motor 25.
- a coaxial arrangement in the shape as in Figure 1 is not possible.
- either the hydrostatic pump 24 or the hydrostatic motor or else both can be controlled and / or regulated.
- FIGS. 1 to 5 show particularly advantageous embodiments of a fluid energy machine unit as a compressor unit. Also conceivable is an embodiment as a pump unit. LIST OF REFERENCES
- Compressor unit in particular
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- Physics & Mathematics (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018108432.3A DE102018108432A1 (de) | 2018-04-10 | 2018-04-10 | Fluidenergiemaschineneinheit, insbesondere Kompressor- oder Pumpeneinheit |
| PCT/EP2019/056199 WO2019197108A1 (de) | 2018-04-10 | 2019-03-13 | Fluidenergiemaschineneinheit, insbesondere kompressor- oder pumpeneinheit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3775619A1 true EP3775619A1 (de) | 2021-02-17 |
Family
ID=65802071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19711302.0A Withdrawn EP3775619A1 (de) | 2018-04-10 | 2019-03-13 | Fluidenergiemaschineneinheit, insbesondere kompressor- oder pumpeneinheit |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3775619A1 (de) |
| DE (1) | DE102018108432A1 (de) |
| WO (1) | WO2019197108A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2318990A (en) * | 1942-06-10 | 1943-05-11 | Gen Electric | Radial flow elastic fluid turbine or compressor |
| FR1472085A (fr) | 1965-11-18 | 1967-03-10 | Snecma | Perfectionnement aux compresseurs contra-rotatifs |
| JPS5938440B2 (ja) * | 1975-01-31 | 1984-09-17 | 株式会社日立製作所 | 流体回転機械 |
| DD136761A1 (de) * | 1978-05-29 | 1979-07-25 | Hans Spengler | Hochdruckkreiselpumpenaggregat |
| DE3907591A1 (de) * | 1989-03-09 | 1990-09-13 | Everth Hans Joachim Dr Med | Zweistufiges geblaese, pumpe oder dergl. insbesondere fuer medizinische zwecke |
| DE102010014588A1 (de) * | 2010-04-09 | 2010-11-18 | Voith Patent Gmbh | Kraftwerksstrang mit einer drehzahlvariablen Pumpe |
| US9476427B2 (en) | 2012-11-28 | 2016-10-25 | Framo Engineering As | Contra rotating wet gas compressor |
| DE102014213295A1 (de) * | 2013-11-14 | 2015-05-21 | Voith Patent Gmbh | Hydrodynamischer Wandler und Verstelleinrichtung für einen solchen Wandler |
| US20160047305A1 (en) * | 2014-08-15 | 2016-02-18 | General Electric Company | Multi-stage axial compressor arrangement |
| DE102015226640A1 (de) * | 2015-12-23 | 2017-06-29 | Voith Patent Gmbh | Unterwasser-Antriebseinheit |
-
2018
- 2018-04-10 DE DE102018108432.3A patent/DE102018108432A1/de active Pending
-
2019
- 2019-03-13 WO PCT/EP2019/056199 patent/WO2019197108A1/de not_active Ceased
- 2019-03-13 EP EP19711302.0A patent/EP3775619A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019197108A1 (de) | 2019-10-17 |
| DE102018108432A1 (de) | 2019-10-10 |
| BR112020020668A2 (pt) | 2021-01-12 |
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