EP2606234B1 - Pompe à pistons rotatifs - Google Patents

Pompe à pistons rotatifs Download PDF

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Publication number
EP2606234B1
EP2606234B1 EP11748632.4A EP11748632A EP2606234B1 EP 2606234 B1 EP2606234 B1 EP 2606234B1 EP 11748632 A EP11748632 A EP 11748632A EP 2606234 B1 EP2606234 B1 EP 2606234B1
Authority
EP
European Patent Office
Prior art keywords
pump
rotary
housing
rotary lobe
inlet
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.)
Active
Application number
EP11748632.4A
Other languages
German (de)
English (en)
Other versions
EP2606234A2 (fr
Inventor
Paul Krampe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hugo Vogelsang Maschinenbau GmbH
Original Assignee
Hugo Vogelsang Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hugo Vogelsang Maschinenbau GmbH filed Critical Hugo Vogelsang Maschinenbau GmbH
Priority to PL11748632T priority Critical patent/PL2606234T3/pl
Priority to SI201130788A priority patent/SI2606234T1/sl
Publication of EP2606234A2 publication Critical patent/EP2606234A2/fr
Application granted granted Critical
Publication of EP2606234B1 publication Critical patent/EP2606234B1/fr
Priority to HRP20160309TT priority patent/HRP20160309T1/hr
Priority to CY20161100280T priority patent/CY1117347T1/el
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies
    • 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
    • F04C2240/801—Wear plates

Definitions

  • the invention relates to a rotary piston pump for conveying a solids-containing fluid medium, comprising an inlet opening and an outlet opening for the medium to be conveyed, two arranged in a pump housing rotary piston with interlocking rotary lobes, each of the two rotors torque-fixed to one shaft and by the respective Shaft is drivable, and wherein the two shafts are coupled together by a transmission disposed in a transmission housing.
  • the invention further relates to a rotary lobe pump kit for providing rotary lobe pumps.
  • Rotary pumps of the type mentioned are, for example, from DE 10 2007 054 544 A1 and the EP 1 624189 B1 the applicant and from the DE 10 2005 017 575 A1 and the WO 2007/026 109 A1 known and serve to promote a fluid medium containing solids.
  • a fluid medium containing solids For example, with a rotary pump inhomogeneous liquids, such as liquid manure can be promoted.
  • the medium to be delivered passes through an inlet opening arranged on the pump housing into the interior of the pump housing, where it is conveyed by the intermeshing rotary lobe wings of two driven rotary lobes in the direction of an outlet opening arranged on the pump housing and leaves the interior of the pump housing again through the outlet opening.
  • US 6,152,719 discloses a gear pump having a front plate, a pump housing, a back plate, a seal housing, a drive shaft assembly, a Mitlaufwellenan extract, which are each mounted in support bearings.
  • a gear pump having a front plate, a pump housing, a back plate, a seal housing, a drive shaft assembly, a Mitlaufwellenan extract, which are each mounted in support bearings.
  • the pump housing is located between the front panel and the rear panel.
  • the back plate acts as a partial support for the drive shaft and the counter shaft.
  • the invention is based on the finding that an advantageous rotary pump arranged by a departure from the usual design with the pump housing Inlet and outlet ports can be realized with as direct access to the rotary piston in the pump housing.
  • the inlet and outlet openings are arranged on a connection housing.
  • the two rotary pistons are arranged, preferably in a pump chamber formed in the interior of the pump housing.
  • the two rotary pistons are driven in opposite directions, with their rotary lobes meshing to promote the medium.
  • connection housing can be firmly integrated into a pipeline system via the inlet and outlet openings and only the pump housing must be accessible for maintenance of the rotary pump.
  • This embodiment of the rotary piston pump according to the invention with a spatial separation of the pump housing with the rotary piston of the inlet and outlet ports used for connection of the rotary piston pump on pipes allows on the one hand a very compact design of the rotary lobe pump and on the other hand a maintenance-friendly rotary lobe pump, as exposed to increased wear and therefore more often to be exchanged rotary piston so independent of the connection housing and the pipes to be connected and arranged are accessible.
  • the terminal housing is offset from the pump housing in an axial direction parallel to the shafts.
  • the inlet and outlet openings in an axial direction, which is parallel to the waves, from the pump housing, in particular to a pump chamber formed in the interior of the pump housing are spaced or adjacent thereto. In this way it can be ensured that the adjoining the inlet and outlet ports are spaced from the pump housing and the pump housing is easily accessible.
  • the transmission housing and the connection housing form a structural unit-the transmission unit.
  • the gear housing and the connection housing can each consist of several components or each formed in one piece. It is particularly preferred that the gear unit is formed as a whole in one piece, i. the transmission housing and the connection housing are formed as a continuous, one-piece component.
  • the transmission housing is arranged at least partially within the connection housing and further preferably at least one flow space is formed between the connection housing and the transmission housing, through which medium can be flowed through.
  • the at least one flow space is preferably in fluid communication with the inlet or outlet opening and the interior of the pump housing, so that flowing through the inlet opening medium through the flow space to a arranged in the interior of the pump housing and the rotary piston pump chamber and from there via the same or can reach a further flow space to the outlet opening.
  • the pump housing and the gear unit are releasably connected to each other.
  • the pump housing may be releasably secured to the terminal housing, the transmission housing or both the connection housing and the transmission housing. In this way, the pump housing of the rotary pump can be removed to wait for example, the rotary piston or replace. Due to the fact that, according to the invention, the inlet and outlet openings are not arranged on the pump housing, inlet and outlet lines connected to the inlet and outlet openings do not have to be dismantled during maintenance of the rotary pump, but can remain connected to the connection housing even when the pump housing is removed. By being able to completely remove the pump housing from the gear unit and thus fully expose the rotary pistons, the accessibility the rotary piston and thus their maintenance and possibly assembly / disassembly considerably easier.
  • the invention can be further developed in that the two rotary pistons are detachably fastened to the respective shaft.
  • the invention can be further developed by a wear plate arranged between the pump housing and the gear unit, wherein the wear plate is preferably releasably attached to the gear unit.
  • This preferred development of the rotary lobe pump according to the invention has the advantage that the ease of maintenance of the rotary lobe pump is further improved in that the wear plate is arranged at the junction of gear unit and pump housing and therefore very easily accessible and can be quickly replaced. It is particularly preferred that the wear plate is releasably secured to the gear unit, so that for example when removing the pump housing from the gear unit to replace the rotary piston, the wear plate on the one hand easily accessible, but on the other hand is stably fixed to the gear unit, if an exchange or disassembly of the wear plate should take place at another time.
  • the wear plate may be releasably secured to the terminal housing, the transmission housing, or both the terminal housing and the transmission housing.
  • the rotary piston pump has only a single wear plate.
  • the invention can be further developed in that the two shafts of the gear unit are rotatably mounted and in each case a portion of the shafts protrudes into a pump chamber formed in the interior of the pump housing.
  • the pump housing has no storage for the two shafts.
  • the bearings for the two drive shafts of the rotary pistons are located in the gear unit, preferably in the gear housing.
  • the waves protrude in such a way into the pump chamber in the pump housing into which the two rotary pistons are fixed torque-resistant on the waves and can be driven by the respective shaft accordingly.
  • the shafts are not additionally supported by bearings in the pump housing.
  • Another advantage of this training is that in this way the pump housing can be particularly simple and therefore can be made faster and cheaper than housing parts having shaft bearings.
  • a particularly preferred further development form therefore also provides that the pump housing is formed in one piece.
  • a one-piece design of the pump housing over a known in the prior art training in two half-shells has the advantage that the pump housing can be produced cheaper, easier and faster to assemble and disassemble is as a two-part pump housing and an additional separation point, which must be sealed and therefore always a risk of leakage, can be avoided.
  • the invention can be developed by connecting the inlet opening via a first flow channel and the outlet opening via a second flow channel to a pump chamber formed in the interior of the pump housing, at least a part of the first and second flow channel extending in a substantially axial direction, which is arranged parallel to the waves.
  • connection housing it is necessary to provide flow channels through which the medium to be delivered can pass from the inlet opening into the pump chamber formed in the interior of the pump housing and from the pump chamber to the outlet.
  • the flow channels are arranged at least in sections axially, that is to say parallel to the axis of rotation of the shafts.
  • the flow channels may be formed within or as part of one or more flow spaces between the connection housing and the transmission housing.
  • the invention can be developed by arranging the inlet opening and the outlet opening in the operating state of the rotary piston pump in the upper half of the connection housing.
  • the inlet opening and the outlet opening are arranged in the operating state of the rotary piston pump on the connection housing such that a first axis which is arranged at right angles to a plane comprising the inlet opening, and a second axis which is perpendicular to an outlet opening Plane is arranged, each inclined at an angle of 45 ° to a vertical.
  • This form of training has not only the advantage that a very good liquid reservoir and a high power density can be achieved, but also that of the inlet and Outlet opening to be connected inlet and outlet can be variably adapted to different installation situations.
  • a particularly preferred further development form is characterized by an inlet connection adjoining the inlet opening with an inlet flange and an outlet connection with an outlet flange adjoining the outlet opening, wherein the inlet connection and the outlet connection are designed and fastened to the connection housing in such a way that in a first fastening position the inlet - And / or the outlet in the operating state of the rotary pump is arranged horizontally or are and / or in a second mounting position of the inlet and / or the outlet in the operating state of the rotary pump is arranged vertically or are.
  • inlet and outlet ports are provided, which can be arranged and fastened to the inlet or outlet opening on the connection housing and furthermore each have an inlet or outlet flange for connecting the inlet or outlet connection to a pipeline.
  • the inlet and the outlet are designed such that they can be arranged in at least two different ways at the inlet or outlet port on the connection housing:
  • the respective nozzle can be arranged so that the associated flange in the operating state the rotary lobe pump is arranged horizontally or vertically.
  • connection housing has at least one releasably closable drainage bore, through which the medium to be conveyed can be discharged.
  • connection housing in particular at least one formed between the connection housing and the transmission housing flow space is enabled and so, for example, during a maintenance when opening the rotary pump no promotional Medium runs after.
  • the drain hole is opened before maintenance.
  • the at least one drain hole is preferably closed in order to prevent an unwanted escape of the medium to be conveyed.
  • a rotary lobe pump kit for providing rotary lobe pumps of different size and / or power, comprising a rotary lobe pump according to the invention as described above and further characterized by at least two other lobes of other size with interlocking rotary lobes, wherein the two shafts and the at least two further rotary lobes another size are formed such that the at least two further rotary pistons of other size are detachably fastened on the respective one of the two shafts.
  • a rotary lobe pump according to the invention and its further developments can form part of a rotary lobe pump kit, which makes it possible to convert a rotary lobe pump according to the invention to a rotary lobe pump according to the invention having a different size or a different power by replacing the rotary lobes.
  • the rotary lobe pump kit has two pairs of rotary pistons of different sizes, in particular of different lengths, so that either the first pair of two rotary lobes is fastened to the shafts or the second pair of two rotary lobes.
  • a rotary piston pump set according to the invention can also have more than two pairs of rotary pistons of different sizes.
  • the rotary pump can be changed very quickly and easily in terms of size or performance by replacing the rotary piston.
  • the rotary lobe pump kit according to the invention can be developed by providing at least one further pump housing of a different size, wherein the gear unit and the at least one further pump housing of a different size are designed such that the at least one further pump housing of a different size can be detachably fastened to the gear unit.
  • the rotary piston pump 100 has an inlet opening 111 and an outlet opening 112 for the medium to be conveyed.
  • an inlet nozzle 115 are attached to an inlet flange 117, via which the rotary piston pump 100 in the operating state to a pipeline (not shown) can be connected.
  • an outlet port 112 may, as also in the FIGS. 1 to 7 it can be seen, an outlet port 116 are arranged with a Auslassflansch 118, via which the rotary piston pump 100 in the operating state on a pipe (not shown) can be connected.
  • FIGS. 1 and 2 show an embodiment of a rotary piston pump 100 according to the invention, in which the nozzles 115, 116 are arranged so that the respective flanges 117,118 of the nozzles 115, 116 are arranged substantially vertically in the installed state of the rotary piston pump, so that to be connected to these flanges 117, 118 pipeline (not shown) extends substantially horizontally, so-called 90 ° connection.
  • the two nozzles 115, 116 formed as a gooseneck connection, ie, the two flanges 117, 118 are arranged horizontally in the installed state of the rotary pump, so that to the flanges 117, 118 to be connected pipes in the installed state of the rotary piston Pump run substantially vertically.
  • the rotary piston pump 100 of the invention can be very easily transformed by a gooseneck in a 90 ° connection and vice versa or the rotary pump 100 without any nozzle or can only be used with a nozzle.
  • the inlet and the outlet openings 111, 12 are arranged on a connection housing 151 of the rotary piston pump 100.
  • the rotary piston pump 100 further has a pump housing 140.
  • a pump chamber 141 is formed, in which two rotary pistons 121, 122 are arranged, whose rotary lobes engage with each other.
  • the first rotary piston 121 is fixed torque-fixed on a shaft 131 and driven by this.
  • the second rotary piston 122 is (not shown) fixed torque on a second shaft and driven by this.
  • the two shafts are driven in opposite directions and coupled together for this purpose via a corresponding gear.
  • Such a transmission (not shown) is located in a transmission housing 152.
  • the transmission housing 152 and the connection housing 151 together form a transmission unit 150.
  • the transmission housing 152 is arranged at least partially within the connection housing 151.
  • a flow space 153 is formed, via which the inlet opening 111 is in fluid communication with the pump chamber 141.
  • the rotary piston pump 100 has a further flow space (not shown) via which the outlet opening 112 is in fluid communication with the pump chamber 141.
  • the inlet and outlet ports 111, 112 are spaced from the pump housing 140 in an axial direction that is parallel to the shaft 131. Terminal housing 151 and pump housing 140 are offset in the axial direction and adjoin one another in the axial direction. As in particular in Fig. 6 can be seen, inlet and outlet ports 111, 112 and pump chamber 141 (in each case based on their viewed in the axial direction center) at a distance A from each other.
  • the pump housing (140) is detachably connected to the transmission unit 150 at a connection or interface 170.
  • One of the two shafts, here the shaft 131, is guided out of the gear housing 152 and can be rotated by means of a drive motor (not shown). This rotation is transmitted through the transmission (not shown) in the transmission housing 152 to the other shaft (not shown).
  • the shaft 131 is rotatably supported in the transmission housing 152 and protrudes with a portion 131 a into the pumping chamber 141.
  • On this section 131a of the rotary piston 121 is removably fixed torque.
  • the second rotary piston 122 is on the same manner attached to the second shaft, not shown.
  • the pump housing 140 has no bearing for the two shafts and may therefore be formed in one piece. In this way, results in a particularly inexpensive to produce pump housing 140, which can be poured without a core and requires only a clamping in the processing.
  • the one-piece design of the pump housing 140 further reduces the number of housing separation points, so that the accuracy of fit of the housing parts can be increased in an advantageous manner.
  • a wear plate 160 is arranged, which is releasably secured to the gear unit 150.
  • the inventive construction of the rotary piston pump 100 it is possible to provide only a single wear plate 160, so that in the maintenance time and costs can be saved.
  • the fluid medium entering the connection housing through the inlet connection 115 and the inlet opening 111 passes through a first flow channel 113 into the pump chamber 141 and from there through a second flow channel 114 through the outlet opening 112 and the outlet connection 116 out of the rotary piston pump 100.
  • the two flow channels 113, 114 each have a first portion 113 a, 114 a, which extends in the gear unit 150, and a second portion 113 b, 114 b, which extends in the pump housing 140.
  • the two flow channels 113, 114 are partially parallel to the shaft 131, d. H. arranged in a substantially axial direction of the rotary piston pump 100 relative to the axis 180 of the rotary piston pump 100.
  • the flow channel 113 is at least partially formed within the flow space 153 or constitutes a part of the flow space 153. The same applies to the flow channel 114 and another, not shown flow space. Due to the at least partially axial inflow or outflow of the fluid medium through the flow spaces or channels, the axial distance A between inlet and outlet openings 111, 112 and pump chamber 141 is overcome.
  • the arrangement of the inlet opening 111 and the outlet opening 112 in the operating state of the rotary lobe pumps 100 in the upper half of the connection housing 151 always results in a very good liquid reservoir in the rotary lobe pump 100 and in particular in the pump chamber 141, especially in combination with the at least partially axial inlet. or drainage of the fluid medium.
  • the terminal housing 151 may have two releasably closable drain holes 154a, b with releasably attached closure lids 155a, b, through which the medium to be conveyed can be discharged.
  • This facilitates maintenance of the rotary lobe pump 100, since in this way a complete or almost complete emptying of the connection housing 151, in particular of the at least one flow space 153 formed between the connection housing and the transmission housing and the flow channels 113, 114, is made possible and thus, for example, at one Maintenance when opening the rotary lobe pump 100 runs no medium to be pumped.
  • the closure lid 155 a, b, the drain holes 154 a, b close tightly to prevent accidental leakage of medium to be conveyed.
  • inlet and outlet ports 111, 112 on the connection housing 151 and the arrangement of the two rotary pistons 121, 122 in the pump housing 140 there are several advantages: First, it is possible, the rotary pump 100 with the terminal housing 151 fixed in a pipeline system (not shown) via connecting to the inlet and outlet ports 111, 112 connecting piece 115, 116 with connecting flanges 117, 118 to connect. At the same time, however, despite this fixed connection of the terminal housing 151, the wearing parts, in particular the wear plate 160 and the rotary pistons 121, 122, 140 can be replaced easily and quickly by removing the pump housing.
  • the structure of the rotary lobe pump 100 according to the invention has little dead spaces in which solids can settle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Treatment Of Sludge (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (14)

  1. Pompe à pistons rotatifs (100) pour le refoulement d'un produit fluide contenant des substances solides, comprenant
    - une ouverture d'entrée (111) et une ouverture de sortie (112) pour le produit à refouler,
    - deux pistons rotatifs (121, 122) agencés dans un carter de pompe (140) avec des ailettes à pistons rotatifs venant en prise les unes dans les autres, chacun des deux pistons rotatifs étant fixé de manière à résister au couple sur respectivement un arbre (131) et pouvant être entraîné par l'arbre respectif et les deux arbres étant couplés entre eux par un engrenage agencé dans un boîtier d'engrenage (152),
    caractérisée en ce que
    - l'ouverture d'entrée et l'ouverture de sortie sont agencées sur un boîtier de raccordement (151) et
    - le boîtier d'engrenage (152) et le boîtier de raccordement (151) sont réalisés comme une unité d'engrenage (150).
  2. Pompe à pistons rotatifs (100) selon la revendication précédente,
    caractérisée en ce que le carter de pompe (140) et l'unité d'engrenage (150) sont reliés entre eux de manière détachable.
  3. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les deux pistons rotatifs (121, 122) sont fixés de manière amovible sur l'arbre respectif (131).
  4. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée par une plaque d'usure (160) agencée entre le carter de pompe (140) et l'unité d'engrenage (150), la plaque d'usure étant de préférence fixée de manière amovible sur l'unité d'engrenage.
  5. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la pompe à pistons rotatifs ne présente qu'une seule plaque d'usure (160).
  6. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que le carter de pompe (140) ne présente aucun logement pour les deux arbres (131).
  7. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que le carter de pompe (140) est réalisé d'un seul tenant.
  8. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'ouverture d'entrée (111) est reliée par un premier canal d'écoulement (113) et l'ouverture de sortie (112) est reliée par un second canal d'écoulement (114) à une chambre de pompe (141) réalisée à l'intérieur du carter de pompe, au moins respectivement une partie du premier et du second canal d'écoulement s'étendant dans un sens sensiblement axial qui est agencé parallèlement aux arbres (131).
  9. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'ouverture d'entrée (111) et l'ouverture de sortie (112) sont agencées dans l'état de fonctionnement de la pompe à pistons rotatifs dans la moitié supérieure du boîtier de raccordement (151).
  10. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'ouverture d'entrée (111) et l'ouverture de sortie (112) sont agencées dans l'état de fonctionnement de la pompe à pistons rotatifs sur le boîtier de raccordement (151) de telle manière qu'un premier axe qui est agencé perpendiculairement à un plan comprenant l'ouverture d'entrée et un second axe qui est agencé perpendiculairement à un plan comprenant l'ouverture de sortie, soient inclinés respectivement selon un angle de 45° par rapport à une verticale.
  11. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée par une tubulure d'entrée (115) se raccordant à l'ouverture d'entrée (111) avec une bride d'entrée (117), et une tubulure de sortie (116) se raccordant à l'ouverture de sortie (112) avec une bride de sortie (118), la tubulure d'entrée et la tubulure de sortie étant réalisées et pouvant être fixées sur le boîtier de raccordement (151) de telle manière que dans une première position de fixation, la bride d'entrée et/ou la bride de sortie est/sont agencée(s) horizontalement dans l'état de fonctionnement de la pompe à pistons rotatifs et/ou dans une seconde position de fixation, la bride d'entrée et/ou de sortie est/sont agencée(s) verticalement dans l'état de fonctionnement de la pompe à pistons rotatifs.
  12. Pompe à pistons rotatifs (100) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que le boîtier de raccordement (151) présente au moins un perçage de sortie refermable de manière amovible, par lequel le produit à refouler peut être évacué.
  13. Ensemble de pompe à pistons rotatifs pour la mise à disposition de pompes à pistons rotatifs (100) de différente grandeur et/ou capacité, comprenant une pompe à pistons rotatifs selon l'une quelconque des revendications précédentes et caractérisé en outre par au moins deux autres pistons rotatifs d'une autre grandeur avec des ailettes à pistons rotatifs venant en prise les unes dans les autres, les deux arbres (131) et les au moins deux autres pistons rotatifs d'une autre grandeur étant réalisés de telle manière que les au moins deux autres pistons rotatifs d'une autre grandeur puissent être fixés de manière amovible sur l'arbre respectif des deux arbres.
  14. Ensemble de pompe à pistons rotatifs selon la revendication précédente,
    caractérisée par au moins un autre carter de pompe d'une autre grandeur, l'unité d'engrenage (150) et l'au moins un autre carter de pompe d'une autre grandeur étant réalisés de telle manière que l'au moins un autre carter de pompe d'une autre grandeur puisse être fixé de manière amovible sur l'unité d'engrenage.
EP11748632.4A 2010-08-20 2011-08-18 Pompe à pistons rotatifs Active EP2606234B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL11748632T PL2606234T3 (pl) 2010-08-20 2011-08-18 Pompa z tłokiem obrotowym
SI201130788A SI2606234T1 (sl) 2010-08-20 2011-08-18 Črpalka z vrtilnim batom
HRP20160309TT HRP20160309T1 (hr) 2010-08-20 2016-03-24 Rotaciona klipna pumpa
CY20161100280T CY1117347T1 (el) 2010-08-20 2016-04-06 Αντλια με πτερυγια

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010011626U DE202010011626U1 (de) 2010-08-20 2010-08-20 Drehkolbenpumpe
PCT/EP2011/064229 WO2012022784A2 (fr) 2010-08-20 2011-08-18 Pompe à pistons rotatifs

Publications (2)

Publication Number Publication Date
EP2606234A2 EP2606234A2 (fr) 2013-06-26
EP2606234B1 true EP2606234B1 (fr) 2016-01-20

Family

ID=42994211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11748632.4A Active EP2606234B1 (fr) 2010-08-20 2011-08-18 Pompe à pistons rotatifs

Country Status (19)

Country Link
US (1) US9127673B2 (fr)
EP (1) EP2606234B1 (fr)
JP (1) JP5918766B2 (fr)
KR (1) KR101845572B1 (fr)
CN (1) CN103140682B (fr)
AU (1) AU2011290716B2 (fr)
BR (1) BR112013004008B8 (fr)
CY (1) CY1117347T1 (fr)
DE (1) DE202010011626U1 (fr)
DK (1) DK2606234T3 (fr)
ES (1) ES2566340T3 (fr)
HK (1) HK1181834A1 (fr)
HR (1) HRP20160309T1 (fr)
HU (1) HUE027120T2 (fr)
NZ (1) NZ607424A (fr)
PL (1) PL2606234T3 (fr)
RS (1) RS54565B1 (fr)
SI (1) SI2606234T1 (fr)
WO (1) WO2012022784A2 (fr)

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Also Published As

Publication number Publication date
SI2606234T1 (sl) 2016-05-31
ES2566340T3 (es) 2016-04-12
KR20140020818A (ko) 2014-02-19
HUE027120T2 (en) 2016-08-29
DK2606234T3 (en) 2016-02-15
WO2012022784A3 (fr) 2013-05-02
CN103140682A (zh) 2013-06-05
HK1181834A1 (zh) 2013-11-15
US20130202474A1 (en) 2013-08-08
PL2606234T3 (pl) 2016-07-29
NZ607424A (en) 2015-03-27
EP2606234A2 (fr) 2013-06-26
RS54565B1 (en) 2016-06-30
BR112013004008B8 (pt) 2022-08-30
HRP20160309T1 (hr) 2016-04-22
WO2012022784A2 (fr) 2012-02-23
DE202010011626U1 (de) 2010-10-21
KR101845572B1 (ko) 2018-04-04
BR112013004008A2 (pt) 2016-06-28
BR112013004008B1 (pt) 2021-01-12
CN103140682B (zh) 2016-01-20
AU2011290716B2 (en) 2015-01-22
JP2013536360A (ja) 2013-09-19
CY1117347T1 (el) 2017-04-26
JP5918766B2 (ja) 2016-05-18
US9127673B2 (en) 2015-09-08
AU2011290716A1 (en) 2013-03-07

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