EP2321534A1 - Intermediate housing floor for a fluid kinetic machine - Google Patents
Intermediate housing floor for a fluid kinetic machineInfo
- Publication number
- EP2321534A1 EP2321534A1 EP09782156A EP09782156A EP2321534A1 EP 2321534 A1 EP2321534 A1 EP 2321534A1 EP 09782156 A EP09782156 A EP 09782156A EP 09782156 A EP09782156 A EP 09782156A EP 2321534 A1 EP2321534 A1 EP 2321534A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing intermediate
- intermediate bottom
- layer
- housing
- turbomachine
- 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
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
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- 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
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
Definitions
- the invention relates to a housing intermediate bottom for a turbomachine and a turbomachine with the housing intermediate bottom.
- a turbomachine such as a radial turbocompressor is configured as a single shaft compressor having a shaft with impellers threaded thereon and a housing surrounding the impellers.
- the shaft is mounted radially and axially outside of the housing by means of bearings, wherein flow channels are formed from and to the wheels in the interior of the housing by the provision of housing internals.
- the wheels are, for example, designed as radial impellers, which have, for example, an axial inflow direction and a radial outflow direction.
- the impellers are flowed through one after the other so that process gas is gradually compressed from impeller to impeller.
- a ring diffuser is provided, through which the process gas is guided radially outward. With the help of a Umlenkkanals after the ring diffuser, the process gas is deflected and radially inward through a
- the housing internals are provided with a corresponding shape, so that the ring diffuser, the deflection channel and the return channel are formed by the interaction of the housing internals in the housing.
- the housing internals are conventional as
- Each housing intermediate floor is formed by two halves, so that the housing intermediate floor is divisible horizontally.
- a housing intermediate bottom by attaching the one half in the lower part of the housing (horizontally divided turbomachine) or in the lower part of Inner housing (vertically divided turbomachine) and are mounted by applying the other half in the upper part.
- the two halves form at their contact surfaces of a parting line, which due to manufacturing inaccuracies and / or deformation of the halves caused by a compressive stress during operation of the radial turbocompressor diverge and thus can be gas permeable.
- a leakage occurs through the parting line, which is considerable, especially in radial turbochargers with high pressure differences.
- the leakage in Radial turbo compressors with high pressure ratio and small flow rate is disadvantageous. Due to the leakage, the efficiency of the radial turbocompressor is reduced, whereby the required power consumption in the fulfillment of predefined boundary conditions by the
- Radial turbo compressor is increased. Furthermore, the maximum possible prediction accuracy with respect to pressure ratio and flow rate of the radial turbocharger is subject to higher tolerances, since the actual effect of the possibly gaping parting line on the operating parameters of the radial turbocompressor is difficult to predict.
- the object of the invention is to provide a housing intermediate bottom for a turbomachine and a turbomachine with the housing intermediate bottom, wherein the turbomachine has a high efficiency.
- the object is achieved by a housing intermediate floor of the type mentioned, which has the additional features of the characterizing part of claim 1.
- the housing intermediate floor in the turbomachine of the housing intermediate bottom is provided with the parting line and the two parting surfaces.
- the recess formed in the one part of the joint surface is provided with the coating, wherein protrudes from the one part of the joint surface, the coating, so that the coating has the supernatant.
- the two parting surfaces are placed against each other so that the coating rests against the other parting surface facing it. Once the parting surfaces are arranged touching each other, the coating is compressed at its supernatant. As a result, the coating lies tightly and flat against the parting surface facing it, so that the parting line is sealed by the coating.
- leakage of process gas through the parting line is prevented or at least reduced, as a result of which the turbomachine has improved efficiency.
- the intermediate housing bottom is sealed by the coating in the assembled state at the parting line, so that such structural inaccuracies can not lead to a deterioration in the performance parameters of the turbomachine.
- the performance parameters of the turbomachine can be better predicted by conventional methods, so that the turbomachine can be designed accurately. As a result, the risk is reduced that it is determined in a possible test run the turbomachine that the turbomachine can not meet the required performance parameters. For this would be appropriate
- the coating is a honeycomb layer.
- the honeycomb layer can be produced inexpensively from correspondingly shaped metal strips, with which a honeycomb structure of the honeycomb layer is formed.
- the honeycomb structure is formed such that the sheet metal strips are compressed in the assembled state of the housing intermediate bottom of the other part of the joint surface.
- the honeycomb layer is preferably soldered into the trough.
- the sprayed layer is preferably Ni-Al-Cr-based.
- the other trough is provided, in each of which one of the coatings is housed, wherein the coatings are arranged overlapping each other.
- the coating of one partial joint surface is the honeycomb layer and for the other partial joint surface to be the sprayed layer.
- the honeycomb layer is provided with its supernatant on one part of the joint surface and the sprayed layer on the other part of the joint surface. If the part-joint surfaces are placed against one another during assembly, then the honeycomb layer is pressed into the sprayed layer under its own deformation, so that the honeycomb layer forms a dense structure in the parting joint with the sprayed layer.
- the thickness of the sprayed layer is preferably at the other part of the joint surface at least as large as the supernatant of the
- Honeycomb layer dimensioned so that in the assembled state of the housing intermediate floor, the honeycomb layer is pressed into the sprayed layer.
- the spray layer extends in the assembled state of the housing intermediate base only in the honeycomb interstices of the honeycomb layer, since the honeycomb layer abuts the bottom of the trough - with a certain margin for manufacturing tolerances - of the other part joint surface.
- the parting line with the honeycomb layer and the sprayed layer is stable and tightly sealed.
- the supernatant is carried out on the sprayed layer.
- the housing intermediate bottom is formed from a lower half and an upper half, which in the assembled state form the parting line in a plane in which the axis of rotation of the turbomachine lies.
- the housing intermediate bottom is formed from the approximately equal halves, so that the housing intermediate floor is easy to assemble and disassemble.
- the one part of the joint surface with the honeycomb layer is provided on the lower half and the other part of the joint surface with the sprayed layer on the upper half.
- turbomachine is a radial turbocompressor, the one
- Radial turbo compressor stage with a ring diffuser, a deflection channel and a return channel which are formed by at least two housing intermediate floors.
- Fig. 1 is a longitudinal section of a
- Fig. 2 is a longitudinal section of a
- a radial turbocompressor 1 has a housing 2 or a housing 2 and an inner housing 33 and a rotor 3.
- a suction nozzle 4 and a discharge nozzle 5 is provided, wherein the suction nozzle 4 opens in the interior of the housing 2 in an inlet 6 and an opening provided in the interior of the housing 2 exit spiral 7 opens into the discharge nozzle 5.
- each radial turbocompressor stage 8 is formed, each of which an impeller 9 of the rotor 3 are formed.
- Each impeller 9 has an axial inflow direction pointing in the direction of the rotation axis 24 of the rotor 3 and a radial outflow direction pointing outwards.
- a ring diffuser 10 which extends radially outward within the housing 2 and downstream of the impeller 9 this is followed.
- the annular diffuser 10 is followed in the flow direction by a deflection channel 11, in which process gas is deflected by the ring diffuser 10 into a return channel 12 in which the process gas flows radially inwards towards the impeller 9 of the next radial turbocompressor stage 8.
- a first intermediate housing bottom 13 and a second housing intermediate bottom 14 is provided for the Radialturbover Whyrtre 8, which are provided with such a contour and arranged to each other such that under cooperation of the first housing intermediate bottom 13 and the second housing intermediate bottom 14 of the ring diffuser 10, the deflection channel 11 and the return channel 12 are formed in the housing 2.
- the first housing intermediate bottom 13 has a cylindrical outer side 15 and is located on the inside of the housing 2, wherein the first housing intermediate bottom 13 is locked with an annular web 16 on the housing 2.
- Housing intermediate bottom 13 and the second housing intermediate bottom 14 are similar in their construction, so that in the following only reference is made to the first housing intermediate bottom 13.
- the first housing intermediate bottom 13 has a lower half 17 and an upper half 18, so that of the lower half 17 and the upper half 18, a parting line 19 is formed.
- the lower half 17 and the upper half 18 are formed substantially geometrically the same, so that the parting line 19 lies in a plane in which the axis of rotation 24 of the radial turbocompressor 11 is located.
- the lower half 17 has a parting surface 20 and the upper half 18 has a parting surface 21, wherein the parting surfaces 20, 21 formed identical in outline are, so that when the lower half 17 is applied to the upper half 18 to form the parting line 19, the parting surfaces 20 and 21 completely overlap.
- Fig. 3 is a plan view of the parting surface 20 of the
- a trough 22 is provided, the border of which is always arranged at a distance from the edge of the parting surface 20.
- the trough 22 is completely surrounded by the parting surface 20.
- a honeycomb layer 23 is housed, which completely fills the trough 22.
- the honeycomb layer 23 is constructed of sheet metal strips 25 which are wave-shaped and assembled to form honeycombs.
- a solder 27 is provided, with which the honeycomb layer 23 is secured in the trough 22.
- the honeycomb layer 23 has a ridge height 28 which is greater than the depth of the trough 22. This results in the honeycomb layer 23, a projection 29 which projects from the parting surface 20.
- the in the assembled state of the housing intermediate bottom 13 of the parting surface 20 of the lower half 17 facing parting surface 21 of the upper half 18 has a trough 30, the edge of which runs parallel to the border of the trough 22.
- the trough 30 tends to be larger in its extent along the parting surface 21 than the trough 22, so that the trough 30 completely covers the trough 22. Thereby, it is prevented that the honeycomb layer 23, which is arranged in the trough 22, comes into contact with the edge of the trough 30 and the parting surface 20.
- a spray layer 31 is provided, which completely fills the trough 30.
- the depth of the trough 30 results in a layer thickness 32, which is formed due to production either equal to the supernatant 29 or greater.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008045669 | 2008-09-03 | ||
PCT/EP2009/060922 WO2010026077A1 (en) | 2008-09-03 | 2009-08-25 | Intermediate housing floor for a fluid kinetic machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2321534A1 true EP2321534A1 (en) | 2011-05-18 |
EP2321534B1 EP2321534B1 (en) | 2016-11-16 |
Family
ID=41165166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09782156.5A Not-in-force EP2321534B1 (en) | 2008-09-03 | 2009-08-25 | Intermediate housing floor for a fluid kinetic machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US8142151B2 (en) |
EP (1) | EP2321534B1 (en) |
CN (1) | CN102144098B (en) |
WO (1) | WO2010026077A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2623730A1 (en) * | 2012-02-02 | 2013-08-07 | Siemens Aktiengesellschaft | Flow engine component with joint and steam turbine with the flow engine component |
JP6963471B2 (en) * | 2017-11-09 | 2021-11-10 | 三菱重工コンプレッサ株式会社 | Rotating machine |
FR3096728B1 (en) * | 2019-05-29 | 2022-01-28 | Thermodyn | Compressor cartridge, motor-compressor and method of assembling such a motor-compressor |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB168772A (en) | 1920-08-19 | 1921-09-15 | Gen Electric | Improvements in and relating to centrifugal compressors and the like |
US3390830A (en) | 1967-04-14 | 1968-07-02 | Kahane Wilhelm | Sealing of horizontally-split centrifugal compressors |
DE2542336C3 (en) | 1975-09-23 | 1978-06-15 | Igor Martynovitsch Kalnin | Multi-stage centrifugal compressor |
SU732556A1 (en) | 1978-07-18 | 1980-05-05 | Ордена Ленина И Ордена Трудового Красного Знамени Производственное Объединение "Невский Завод" Им. В.И.Ленина | Horizontally split stator of turbomachine |
CH676487A5 (en) | 1988-10-19 | 1991-01-31 | Proizv Ob Nevsky Z Im V I | |
CN1042758A (en) * | 1988-11-18 | 1990-06-06 | 列宁联合企业涅弗斯克工厂 | Centrifugal compressor with horizontal dismountable plane |
CN2075700U (en) * | 1989-07-14 | 1991-04-24 | 徐晓强 | High efficient gas turbine |
JP3294491B2 (en) | 1995-12-20 | 2002-06-24 | 株式会社日立製作所 | Turbocharger for internal combustion engine |
ITMI20011348A1 (en) * | 2001-06-27 | 2002-12-27 | Nuovo Pignone Spa | BALANCING PISTON FOR CENTRIFUGAL COMPRESSORS WITH DIVERGENT CELLETTE SEAL |
ITMI20032149A1 (en) | 2003-11-07 | 2005-05-08 | Nuovo Pignone Spa | MULTI-STAGE CENTRIFUGAL COMPRESSOR WITH HORIZONTALLY OPENABLE CASE |
-
2009
- 2009-08-25 US US13/060,880 patent/US8142151B2/en not_active Expired - Fee Related
- 2009-08-25 WO PCT/EP2009/060922 patent/WO2010026077A1/en active Application Filing
- 2009-08-25 EP EP09782156.5A patent/EP2321534B1/en not_active Not-in-force
- 2009-08-25 CN CN2009801345711A patent/CN102144098B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2010026077A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8142151B2 (en) | 2012-03-27 |
WO2010026077A1 (en) | 2010-03-11 |
EP2321534B1 (en) | 2016-11-16 |
CN102144098B (en) | 2013-08-28 |
CN102144098A (en) | 2011-08-03 |
US20110158794A1 (en) | 2011-06-30 |
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