EP1571341A1 - Mehrstufiges Sauggebläse - Google Patents
Mehrstufiges Sauggebläse Download PDFInfo
- Publication number
- EP1571341A1 EP1571341A1 EP05004554A EP05004554A EP1571341A1 EP 1571341 A1 EP1571341 A1 EP 1571341A1 EP 05004554 A EP05004554 A EP 05004554A EP 05004554 A EP05004554 A EP 05004554A EP 1571341 A1 EP1571341 A1 EP 1571341A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radial
- suction
- fan
- blower
- drive shafts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005192 partition Methods 0.000 description 6
- 230000003584 silencer Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D23/00—Other rotary non-positive-displacement pumps
- F04D23/001—Pumps adapted for conveying materials or for handling specific elastic fluids
- F04D23/003—Pumps adapted for conveying materials or for handling specific elastic fluids of radial-flow type
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
Definitions
- the invention relates to a multi-stage suction fan with at least two each a housing and an impeller arranged therein, arranged successively, drivable radial blowers, wherein the Blow-out of each first radial blower with the suction of the each second radial blower connected by a respective flow channel is, in particular for use in a suction dredger, according to the preamble of Claim 1.
- a suction dredger which has a suction fan which creates a vacuum that is strong enough to soil and the like through a suction hose or a suction pipe in a collecting container to suck.
- a suction dredger is, for example, by EP 1 127 196 A1 become known, which has a pneumatic suction turbine, the is connected to a collecting container for the sucked-up suction material and with a collecting chamber subsequent filter chamber having a plurality of filters through which the suction air flow is guided for fine filtering, wherein Sump and filter chamber separated by a partition are.
- the mouth of the suction pipe takes place laterally above in the collecting container, the passage of the partition opposite the mouth of the Sucker is arranged offset by 180 degrees and within the dividing wall as far away as possible from the junction, so that the Saugluftströmung Cyclonic about a vertical axis within the sump moved, and the suction air flow is guided so that it filters in the filter chamber flows essentially horizontally and flows through it.
- suction fans are due to the required power range between about 100 and 1000 kW and because of the required resistance against alternating loads, shocks and dirt particles in the sucked Air radial fan particularly suitable. These points in comparison to Axial blowers also have the advantage that they are easy to produce and have a lower maintenance.
- a radial blower consists of one in a housing on a drivable Drive shaft arranged impeller, which consists of a plane perpendicular to the Longitudinal axis of the drive shaft arranged in the center, circular disc and arranged perpendicularly on the disc arranged wings, wherein the Housing at least one aligned with the drive shaft or near the Longitudinal axis of the drive shaft arranged suction opening and at least one arranged in the housing in the region of the outer circumference of the impeller Having blow-out.
- the radial fan uses the inertia of the air by Air flows through the intake centrally into the impeller and through the on
- the rotating disk arranged wing is set in rotation, so that the air due to its inertia hurled radially outward and thereby is compressed.
- the compressed air flows through the housing in the area of Outside circumference of the impeller arranged exhaust opening of the Radial fan off.
- the common drive shaft due to each axial in the Area of the axis arranged suction opening of the individual stages through the Flow channel can be passed between the stages, causing it to cause additional energy losses, the maximum achievable pressure ratio further lowering, unwanted cross-sectional changes in the inlet channel comes.
- An additional disadvantage of the known arrangement is that a Adjustment of the suction power only via a speed adjustment of the radial fan is possible. Such an adaptation is dependent, for example from the bulk material to be absorbed, or from its moisture or condition attached, since, for example, the power consumption and thus the Lower energy consumption.
- Those known in the art Embodiments allow only a limited reduction in energy consumption, as the effectiveness of a radial fan, as in turbomachinery usual, limited to a narrow speed range, so that the Power consumption when adjusting the suction power over the speed not linearly changed with the suction power.
- the invention is therefore based on the object to develop a suction fan, which takes advantage of radial blowers without at least all of them before have mentioned disadvantages, so that an improvement in the efficiency Such suction fan can be achieved.
- a suction fan of the type mentioned by that arranged successively and each through a flow channel interconnected radial fan offset relative to each other separate drive shafts are arranged so that in the flow channel between the blow-out opening of the first and the suction opening of the second radial fan a flow deflection by less than 180 ° (Degrees). Preferably takes place in the flow channel between the Blow-out of the first and the suction of the second radial blower a flow deflection of 90 ° (degrees).
- radial blowers which also as stages are to be designated, are connected in series, wherein in the flow channel between the exhaust opening of the first and the preceding and the Suction opening of the second or subsequent radial fan a flow deflection preferably at 90 ° (degrees).
- the series connection The stages can thus take place in such a way that the individual stages quasi staircase-like, so that each step ensures that between the discharge opening of the preceding stage and the suction opening of the subsequent stage, a flow deflection is given by 90 °.
- the suction fan according to the invention has over the prior art the advantage that at least two each fluidically to each other following arranged and in each case by a flow channel with each other connected radial blower relative to each other offset to separate Drive shafts are arranged so that in the flow channel between the Blow-out of the first and the suction of the second radial blower a flow deflection by less than 180 °, preferably 90 °, takes place.
- Two successive radial fans are so far perpendicular to each other arranged offset at least one longitudinal axis of the two drive shafts, that the suction opening of the second radial fan at least half Diameter of the housing of the first radial fan perpendicular to its Drive shaft away from this and towards at least one longitudinal axis the two drive shafts are arranged offset, so that when parallel Drive shafts a flow deflection between the exhaust port the first radial fan and the suction opening of the second radial fan only 90 ° is necessary, whereby the efficiency and the maximum achievable Significantly increase the pressure ratio of the suction fan.
- the suction opening of the second radial fan at least half Diameter of the housing of the first radial fan perpendicular to its Drive shaft away from this and towards at least one longitudinal axis the two drive shafts are arranged offset, so that when parallel Drive shafts a flow deflection between the exhaust port the first radial fan and the suction opening of the second radial fan only 90 ° is necessary, whereby
- An advantageous embodiment of the invention provides that the longitudinal axes the drive shafts do not intersect each other in their projection.
- a Further advantageous embodiment of the invention provides that the drive shafts are arranged parallel to each other.
- each individual drive shaft does not have that of the intake facing end side of the housing in the respective radial fan arranged impeller protrudes, so that the drive shaft is not through the cross section of the suction leads.
- Another advantageous embodiment of the invention provides that the speeds the drive shafts are independently controllable, so that a Adjustment of the speed of each fluidically consecutive Radial fans to the thermodynamic state of the transported air possible is given by the total pressure, the static pressure and the density of Air in the cross section of the intake opening of the respective radial fan.
- An additional advantageous embodiment of the invention provides that the Drive shafts of the radial fan at least in groups independently can be driven, wherein in the flow channel between two fluidically successive, independently drivable radial blowers or radial fan groups arranged a closable vent opening is, by which if necessary air after at least one driven Radial fan or a driven centrifugal fan group at least before a non-driven radial fan or a non-driven Radial blower group can be blown into the environment.
- independently driven radial blower can made an adjustment of the suction power of the suction fan Be driven by blowing off the air between powered and not driven centrifugal fans no energy for the flow through the not powered, shut-off radial fan or centrifugal fan groups must be applied.
- a particularly advantageous embodiment of the invention provides that the Radial fan are arranged on two drive shafts, wherein fluidically successive radial fan alternately on one another of the two drive shafts are arranged, as the respectively before and then radial fan.
- a six-step one Suction blower the first, third and fifth radial blower on a first Drive shaft, and the second, fourth and sixth radial fan on a parallel arranged arranged offset second drive shaft, wherein on a Drive shaft arranged radial fan respectively in the space between the radial fans are arranged on the other drive shaft.
- the arrangement leads the respective common drive shaft through the Cross section of the intake of individual radial fan, causing losses in the Flow arise, but at least partially due to a very compact and simple structure is compensated.
- An advantageous embodiment of the invention provides that at least two identical suction fan with at least two consecutive Radial fans flow consecutively to a blower are arranged, wherein the suction opening of the first radial fan of the second suction blower with the exhaust opening of the last radial fan of the first suction fan through a closable exhaust opening having Connecting channel is connected to the suction fan independently can be switched on and off from each other.
- a suction fan is to Achieving the highest possible efficiency as possible only one minimal and at most technically necessary flow deflection between the individual radial blowers, whereas between the independent and successively arranged suction fans, for example due to a limited space, a stronger flow deflection may be necessary.
- By the successive arrangement of several identical suction fan can the degree of freedom in the design and adaptation of such Increase suction fan to different application and installation space situations.
- a multi-stage suction fan with at least two from each one Housing and an impeller arranged therein, each other arranged following, drivable radial blowers, wherein the exhaust opening of the respective first radial fan with the suction opening of the respective second Radial fan is connected by a respective flow channel
- the task also solved by at least four radial blowers, blower stages, are present, each two or possibly three consecutive and each connected by a flow channel and relative offset from each other are arranged on separate drive shafts, so that in the flow channel between the exhaust opening of the first and the Suction opening of the second radial fan and optionally the third Radial blower a flow deflection by less than 180 ° (degrees), preferably by 90 ° (degrees), and these stages form a first stage block, wherein this step block is followed by at least one further step block, which is rotated 180 ° relative to the first devisnbtock, wherein between the exhaust port the last stage of the first stage block and the suction of the first stage of the other,
- a suction fan 2 shown schematically in FIG. 1 consists of two separated, parallel drive shafts 4 arranged offset and successive radial fans 3a and 3b, stages which summarized as a step block can be called. Every radial fan 3a, 3b has on its housing 25 in the longitudinal axis 5a, 5b of the respective drive shaft 4a, 4b arranged centrally on an impeller 11 leading Inlet opening 7a, 7b, and one in the housing 25 of the radial fan 3a, 3b, arranged in the region of the outer circumference of the impeller 11 exhaust opening 6a, 6b.
- the exhaust opening 6a of the first radial fan 3a and the Intake port 7b of the second radial fan 3b connects to a flow channel 8, which causes a deflection of the air flow by 90 degrees.
- the offset "s" between the radial fans 3 a, b within the suction fan 2 both in the direction of the longitudinal axes 5a, 5b of the drive shafts 4a, 4b is thereby chosen so that between the exhaust opening 6a of the first radial fan 3a and the suction port 7b of the second radial fan 3b, a flow deflection by only 90 ° is necessary by the offset between the successive Radial fans 3a and 3b perpendicular to the longitudinal axes 5a, 5b of the two Drive shafts 4a, 4b is chosen so large that the suction port 7b of the second radial fan 3b at least at a distance from the longitudinal axis 5a the drive shaft 4a of the first radial fan 3a is arranged remotely, the half the diameter of the housing 25 of the first radial fan 3a corresponds, and in the direction of the longitudinal axes 5a, 5b of the two drive shafts 4a, 4 b is offset by the length of the housing 25, resulting in a Significant
- the drive shafts 4 a, b are also at their with the radial fans. 3 a, b connected ends 9 cantilevered, each individual drive shaft 4th a, b do not have the suction opening 7 facing end face 10 of the in the respective radial fan 3 arranged impeller 11 protrudes.
- the Flying bearings are not the flow disturbing internals for supporting the drive shaft 4 in the suction required, in addition, the project Drive shafts 4 each not in the cross section of the intake 7 into it, whereby a further improvement in the efficiency of the suction fan. 2 caused by reducing the flow losses.
- the working direction of the Suction blower 2 is indicated by the flow direction S.
- a connecting channel 12 is shown, with the two identical Suction fan 2 of Figure 1 to a two-stage in the suction power adjustable Suction fan device 1, Figure 3, can be connected.
- the connection channel 12 has a closable through a door 14 exhaust opening 13, which allows air conveyed by a suction fan so redirect that they are not replaced by a second, for example Suction fan, or other suction fan, flows.
- the connecting channel 12 allows together with the closable vent opening 13 connecting of two - or more than two - identical suction fans 2, wherein the suction fan 2 can be switched on and off independently.
- an adaptation of the suction power of the blower 1 to the respective Power requirement for example, when vacuuming dry or moist soil is different, possible.
- the blow-off opening 13 is out of the dividing wall 15 cut out and can through the door 14, which preferably a Sliding door or slat door is to be closed. Is the door 14 locked, Thus, the air can only through a supply channel 1 7, which leads to the second, also constructed as shown in Figure 1 suction fan 2, flow off.
- the exhaust opening 6b of the second suction fan 2 opens before the Silencer 16 through which the air escapes into the environment can. When the door 14 is open, the air flows directly through the blow-off opening 13 and the silencer 16 in the environment.
- a suction dredger 18 is shown, consisting of a on a Chassis 19 mounted Sauggebläse issued 1, namely at least two identical, in their construction, Figure 1 corresponding and with a Connecting channel 12 connected suction fans 2, and a collecting container 20 for the absorbed soil.
- the door 14 closes in Figure 3, the blow-off 13, so that both suction fan 2 for generating a high suction power in a row can be operated switched.
- the suction-blower device mounted on the chassis is the first represented, consisting of at least two identical and by means of a Connecting channel 12 connected suction fans 2. It can be seen how the drive shafts 4 of the radial fan 3 via - for example - belt 21 via arranged on the drive train 22, not shown, independent PTO can be driven by the motor 23 of the chassis 19, wherein the PTOs can be switched on and off independently and the chassis 19, while the engine power mainly for the Radial fan 3 is needed, moved forward in the crawl of the suction dredger can be.
- Figure 5 clearly shows the offset perpendicular to the longitudinal axes 5 and in Direction of the longitudinal axes 5 of the drive shafts 4 between the radial fans 3 within the independent suction fan 2.
- the drive is arranged offset in parallel and one each Radial fan 3 associated drive shafts 4 of the radial fan 3 from Drivetrain 22 of the chassis 19 to recognize.
- the drive shafts 4 to a group summarized radial fan 3 of a suction fan. 2 are arranged by jointly on a shaft, and the motor 23rd of the chassis 19 in each case in groups drivable drive wheels 24th driven.
- FIG. 7 shows a schematic arrangement of a suction fan in plan view with four on separate, parallel and separately driven Drive shafts arranged radial fans, which thus form four stages. Two stages each are combined to form a step block, namely the Levels 1 and 2 as well as levels 3 and 4.
- the design of the individual Stage blocks, levels 1 and 2, and levels 3 and 4, are very similar to levels 1 and FIG. 2 of FIG. 1, for which reason reference is made to the description there.
- the Steps 3 and 4 can thus be understood as a doubling of stages 1 and 2 become.
- the output of the second stage is via a flow channel 8 ', with the Input of the third stage connected; the output of the third stage is over one Flow channel 8 connected to the input of the fourth stage. After this Output 6d of the fourth stage may be connected to further stages. It is recognizable that even with the use of four stages an extremely compact Construction of the radial fan is given.
- This step block is followed by at least one further step block, formed by the steps 3 and 4, which is rotated by 180 ° with respect to the first step block.
- a flow deflection of 270 ° takes place through the flow channel 8 '; the flow deflections within the individual step blocks are less than 180 °, preferably 90 °, as shown in FIG.
- the invention is particularly in the field of production and operation of Dredger industrially applicable.
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- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
- Figur 1
- eine schematische Anordnung eines Sauggebläses in der Draufsicht mit zwei auf getrennten, parallel verlaufenden und getrennt auch antreibbaren Antriebswellen angeordneten Radialgebläsen,
- Figur 2
- eine schematische Anordnung in der Draufsicht auf einen zwei identische Sauggebläse zu einem Gebläse verbindenden Verbindungskanal mit einer verschließbaren Abblasöffnung,
- Figur 3
- eine Seitenansicht eines Saugbaggers mit einem Gebläse bestehend aus zwei identischen, getrennt zu- und abschaltbaren Sauggebläsen mit jeweils zwei auf getrennten, parallel verlaufenden Antriebswellen angeordneten Radialgebläsen im Röntgenblick,
- Figur 4
- eine Detailansicht des Gebläses von Figur 3 in der Seitenansicht,
- Figur 5
- eine Draufsicht eines Saugbaggers mit einem Gebläse bestehend aus zwei identischen, getrennt zu- und abschaltbaren Sauggebläsen mit jeweils zwei auf, getrennten, parallel verlaufenden Antriebswellen angeordneten Radialgebläsen im Röntgenblick,
- Figur 6
- einen Querschnitt durch einen Saugbagger mit einem Gebläse bestehend aus zwei identischen, getrennt zu- und abschaltbaren Sauggebläsen mit jeweils zwei auf getrennten, parallel verlaufenden Antriebswellen angeordneten Radialgebläsen im Röntgenblick, sowie
- Figur 7
- eine schematische Anordnung eines Sauggebläses in der Draufsicht mit vier auf getrennten parallel verlaufenden und getrennt antreibbaren Antriebswellen angeordneten Radialgebläsen, welche somit vier Stufen ausbilden.
- 1
- Sauggebläseeinrichtung
- 2
- Sauggebläse
- 3, 3a, 3b
- Radialgebläse
- 4, 4a, 4b
- Antriebswelle
- 5, 5a, 5b
- Längsachse der Antriebswelle
- 6, 6a, 6b
- Ausblasöffnung
- 7, 7a, 7b
- Einsaugöffnung
- 8, 8'
- Strömungskanal
- 9
- fliegend gelagertes Ende der Antriebswelle
- 10
- Stirnseite
- 11
- Flügelrad
- 12
- Verbindungskanal
- 13
- Abblasöffnung
- 14
- Tür
- 15
- Trennwand
- 16
- Schalldämpfer
- 17
- Zuführungskanal
- 18
- Saugbagger
- 19
- Fahrgestell
- 20
- Sammelbehälter
- 21
- Riemen
- 22
- Antriebstrang
- 23
- Motor
- 24
- Treibrad
- 25
- Gehäuse
- S
- Strömungsrichtung
- s
- "s" halber Durchmesser des Gehäuses des ersten Radialgebläses
Claims (11)
- Mehrstufiges Sauggebläse mit mindestens zwei aus jeweils einem Gehäuse und einem darin angeordneten Flügelrad bestehenden, aufeinander folgend angeordneten, antreibbaren Radialgebläsen, wobei die Ausblasöffnung des jeweils ersten Radialgebläses mit der Einsaugöffnung des jeweils zweiten Radialgebläses durch jeweils einen Strömungskanal verbunden ist,
dadurch gekennzeichnet, dass die aufeinander folgend angeordneten und jeweils durch einen Strömungskanal (8,8') miteinander verbundenen Radialgebläse (3, 3a, 3b) relativ zueinander versetzt auf voneinander getrennten Antriebswellen (4, 4a, 4b) angeordnet sind, so dass in dem Strömungskanal (8) zwischen der Ausblasöffnung (6, 6a) des ersten bzw. vorhergehenden und der Einsaugöffnung (7) des zweiten bzw. nachfolgenden Radialgebläses (3, 3a, 3b) eine Strömungsumlenkung um weniger als 180° erfolgt. - Sauggebläse nach Anspruch 1, dadurch gekennzeichnet, dass sich die Längsachsen (5, 5a, 5b) der Antriebswellen (4, 4a, 4b) in der Projektion nicht schneiden.
- Sauggebläse nach Anspruch 2, dadurch gekennzeichnet, dass die Antriebswellen (4, 4a, 4b) parallel zueinander angeordnet sind.
- Sauggebläse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Antriebswellen (4, 4a, 4b) der Radialgebläse (3, 3a, 3b) an deren jeweils in einem Radialgebläse (3, 3a, 3b) angeordneten Ende (9) fliegend gelagert sind, wobei jede einzelne Antriebswelle (4, 4a, 4b) nicht über die der Einsaugöffnung zugewandten Stirnseite (10) des in dem Gehäuse (25) des jeweiligen Radialgebläses (3, 3a, 3b) angeordneten Flügelrades (11) hinausragt.
- Sauggebläse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Drehzahlen der Antriebswellen (4, 4a, 4b) mindestens teilweise unabhängig voneinander regelbar sind. - Sauggebläse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Antriebswellen (4, 4a, 4b) der Radialgebläse (3, 3a, 3b) mindestens gruppenweise unabhängig voneinander antreibbar sind, wobei in dem Strömungskanal (8) zwischen zwei aufeinander folgenden, unabhängig voneinander antreibbaren Radialgebläsen (3, 3a, 3b) oder Radialgebläsegruppen (2) eine verschließbare Abblasöffnung (13) angeordnet ist, durch welche Luft nach mindestens einem angetriebenen Radialgebläse (3, 3a, 3b) oder einer angetriebenen Radialgebläsegruppe (2) vor mindestens einem nicht angetriebenen Radialgebläse (3, 3a, 3b) oder einer nicht angetriebenen Radialgebläsegruppe (2) in die Umgebung abblasbar ist. - Sauggebläse nach Anspruch 1, dadurch gekennzeichnet, dass die Radialgebläse (3, 3a, 3b) auf zwei Antriebswellen (4, 4a, 4b) angeordnet sind, wobei aufeinander folgende Radialgebläse (3, 3a, 3b) abwechselnd jeweils auf einer anderen der beiden Antriebswellen (4, 4a, 4b) angeordnet sind, als das jeweils davor und danach liegende Radialgebläse (3, 3a, 3b).
- Sauggebläse, dadurch gekennzeichnet, dass mindestens zwei identische Sauggebläse (2) nach einem der vorhergehenden Ansprüche strömungstechnisch aufeinander folgend angeordnet sind, wobei die Einsaugöffnung (7, 7a) des ersten Radialgebläses (3, 3a) des zweiten Sauggebläses (2) mit der Ausblasöffnung (6, 6b) des letzten Radialgebläses (3, 3b) des ersten Sauggebläses (2) durch einen eine verschließbare Abblasöffnung (13) aufweisenden Verbindungskanal (12) verbunden ist, wobei die Sauggebläse (2) unabhängig voneinander zu- und abschaltbar sind.
- Sauggebläse nach Anspruch 1, dadurch gekennzeichnet, dass in dem Strömungskanal (8) zwischen der Ausblasöffnung (6, 6a) des ersten bzw. vorhergehenden und der Einsaugöffnung (7) des zweiten bzw. nachfolgenden Radialgebläses (3, 3a, 3b) eine Strömungsumlenkung um 90° erfolgt.
- Mehrstufiges Sauggebläse mit mindestens zwei aus jeweils einem Gehäuse und einem darin angeordneten Flügelrad bestehenden, aufeinander folgend angeordneten, antreibbaren Radialgebläsen, wobei die Ausblasöffnung des jeweils ersten Radialgebläses mit der Einsaugöffnung des jeweils zweiten Radialgebläses durch jeweils einen Strömungskanal verbunden ist,
dadurch gekennzeichnet, dass wenigstens vier Radialgebläse (3, 3a, 3b), Gebläsestufen, vorhanden sind, wobei jeweils zwei oder gegebenenfalls drei aufeinander folgend und jeweils durch einen Strömungskanal (8) miteinander verbundenen und relativ zueinander versetzt auf voneinander getrennten Antriebswellen (4, 4a, 4b) angeordnet sind, so dass in dem Strömungskanal (8) zwischen der Ausblasöffnung (6, 6a) des ersten und der Einsaugöffnung (7) des zweiten Radialgebläses (3, 3a, 3b) und gegebenenfalls des dritten Radialgebläses eine Strömungsumlenkung um weniger als 180° (Grad), vorzugsweise um 90° (Grad), erfolgt und diese Stufen einen ersten Stufenblock bilden, wobei auf diesen Stufenblock wenigstens ein weiterer Stufenblock folgt, welche gegenüber dem ersten Stufenblock um 180° gedreht ist, wobei zwischen der Ausblasöffnung der letzten Stufe des ersten Stufenblocks und der Einsaugöffnung der ersten Stufe des weiteren, benachbarten Stufenblocks eine Strömungsumlenkung um 270° erfolgt, jedoch die Strömungsumlenkungen innerhalb der einzelnen Stufenblöcke weniger als 180° (Grad), vorzugsweise 90° (Grad) betragen. - Sauggebläse nach Anspruch 10, dadurch gekennzeichnet, dass der Versatz zwischen zwei aufeinander folgenden Radialgebläsen (3a,3b) eines Stufenblocks senkrecht zu den Längsachsen (5a,5b) der Antriebswellen (4a,4b) so groß gewählt ist, dass die Einsaugöffnung (7b) des zweiten und gegebenenfalls dritten Radialgebläses (3b) mindestens in einem Abstand "s" von der Längsachse (5a) der Antriebswelle (4a) des ersten und gegebenenfalls zweiten Radialgebläses (3a) entfernt angeordnet ist, der dem halben Durchmesser des Gehäuses (25) des ersten Radialgebläses (3a) entspricht, und in Richtung der Längsachsen (5a,5b) der Antriebswellen (4a,4b) um die Länge des Gehäuses (25) versetzt angeordnet ist,
Priority Applications (1)
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DE202005008785U DE202005008785U1 (de) | 2004-03-02 | 2005-03-02 | Mehrstufiges Sauggebläse mit mindestens zwei Radialgebläsen, insbesondere zum Einsatz in einem Saugbagger sowie Saugbagger |
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DE102004010069 | 2004-03-02 | ||
DE102004010069 | 2004-03-02 | ||
DE102004042720 | 2004-09-03 | ||
DE102004042720A DE102004042720A1 (de) | 2004-03-02 | 2004-09-03 | Mehrstufiges Sauggebläse mit mindestens zwei Radialgebläsen, insbesondere zum Einsatz in einem Saugbagger |
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EP1571341A1 true EP1571341A1 (de) | 2005-09-07 |
EP1571341B1 EP1571341B1 (de) | 2010-01-13 |
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EP05004554A Revoked EP1571341B1 (de) | 2004-03-02 | 2005-03-02 | Mehrstufiges Sauggebläse |
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EP (1) | EP1571341B1 (de) |
AT (1) | ATE455247T1 (de) |
DE (2) | DE102004042720A1 (de) |
ES (1) | ES2339253T3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012101190U1 (de) | 2012-04-02 | 2012-04-20 | Reschwitzer Saugbagger Produktions Gmbh | Saugbagger zur pneumatischen Aufnahme von Sauggut |
WO2012177494A1 (en) * | 2011-06-24 | 2012-12-27 | Watt Fuel Cell Corp. | Centrifugal blower system and fuel cell incorporating same |
CN106917777A (zh) * | 2016-11-14 | 2017-07-04 | 奇鋐科技股份有限公司 | 风扇框体结构及具有该风扇框体的风扇 |
CN110369436A (zh) * | 2019-07-20 | 2019-10-25 | 深圳中物智建科技有限公司 | 一种龙门式工程材料检测装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019127258A1 (de) | 2019-10-10 | 2021-04-15 | Zenner Ventilatoren Gmbh | Verfahren zur Beeinflussung eines durch einen Ventilator erzeugten Saug- oder Druckstromes und Anordnung zur Durchführung des Verfahrens |
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EP0368129A1 (de) * | 1988-11-05 | 1990-05-16 | VMB VESTA MASCHINENBAU GMBH & CO. KG | Saugbagger |
GB2231009A (en) * | 1984-11-17 | 1990-11-07 | Rolls Royce | Diverter valve with bypass duct obturator for twin gas turbine engine installation |
DE29504886U1 (de) * | 1995-03-27 | 1995-07-27 | air-control international (Deutschland) GmbH, 91522 Ansbach | Entlüftungsgerät |
US20030013407A1 (en) * | 2001-05-31 | 2003-01-16 | Martin Gagnon | Ventilation method and device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE191405C (de) * | 1900-01-01 |
-
2004
- 2004-09-03 DE DE102004042720A patent/DE102004042720A1/de not_active Withdrawn
-
2005
- 2005-03-02 EP EP05004554A patent/EP1571341B1/de not_active Revoked
- 2005-03-02 DE DE502005008851T patent/DE502005008851D1/de active Active
- 2005-03-02 ES ES05004554T patent/ES2339253T3/es active Active
- 2005-03-02 AT AT05004554T patent/ATE455247T1/de active
Patent Citations (4)
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GB2231009A (en) * | 1984-11-17 | 1990-11-07 | Rolls Royce | Diverter valve with bypass duct obturator for twin gas turbine engine installation |
EP0368129A1 (de) * | 1988-11-05 | 1990-05-16 | VMB VESTA MASCHINENBAU GMBH & CO. KG | Saugbagger |
DE29504886U1 (de) * | 1995-03-27 | 1995-07-27 | air-control international (Deutschland) GmbH, 91522 Ansbach | Entlüftungsgerät |
US20030013407A1 (en) * | 2001-05-31 | 2003-01-16 | Martin Gagnon | Ventilation method and device |
Cited By (14)
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AU2012273238B2 (en) * | 2011-06-24 | 2015-10-22 | Watt Fuel Cell Corp. | Centrifugal blower system and fuel cell incorporating same |
US9593686B2 (en) | 2011-06-24 | 2017-03-14 | Watt Fuel Cell Corp. | Centrifugal blower system and fuel cell incorporating same |
US10273961B2 (en) | 2011-06-24 | 2019-04-30 | Watt Agent, Llc | Fuel cell system including a fuel cell assembly and centrifugal blower system |
CN103732924A (zh) * | 2011-06-24 | 2014-04-16 | 瓦特燃料电池公司 | 离心鼓风机系统以及包括离心鼓风机系统的燃料电池 |
JP2014523503A (ja) * | 2011-06-24 | 2014-09-11 | ワット フュール セル コーポレーション | 遠心送風システム及び遠心送風システムを含む燃料セル |
US9017893B2 (en) | 2011-06-24 | 2015-04-28 | Watt Fuel Cell Corp. | Fuel cell system with centrifugal blower system for providing a flow of gaseous medium thereto |
WO2012177494A1 (en) * | 2011-06-24 | 2012-12-27 | Watt Fuel Cell Corp. | Centrifugal blower system and fuel cell incorporating same |
US9512846B2 (en) | 2011-06-24 | 2016-12-06 | Watt Fuel Cell Corp. | Cetrifugal blower system and fuel cell incorporating same |
CN103732924B (zh) * | 2011-06-24 | 2017-03-29 | 瓦特燃料电池公司 | 离心鼓风机系统以及包括离心鼓风机系统的燃料电池 |
DE202012101190U1 (de) | 2012-04-02 | 2012-04-20 | Reschwitzer Saugbagger Produktions Gmbh | Saugbagger zur pneumatischen Aufnahme von Sauggut |
EP2647770A1 (de) | 2012-04-02 | 2013-10-09 | Reschwitzer Saugbagger Produktions Gmbh | Saugbagger zur pneumatischen Aufnahme von Sauggut |
CN106917777A (zh) * | 2016-11-14 | 2017-07-04 | 奇鋐科技股份有限公司 | 风扇框体结构及具有该风扇框体的风扇 |
CN106917777B (zh) * | 2016-11-14 | 2019-09-06 | 奇鋐科技股份有限公司 | 风扇框体结构及具有该风扇框体的风扇 |
CN110369436A (zh) * | 2019-07-20 | 2019-10-25 | 深圳中物智建科技有限公司 | 一种龙门式工程材料检测装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1571341B1 (de) | 2010-01-13 |
DE502005008851D1 (de) | 2010-03-04 |
ES2339253T3 (es) | 2010-05-18 |
DE102004042720A1 (de) | 2005-11-24 |
ATE455247T1 (de) | 2010-01-15 |
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