EP2643556B1 - Radial geared compressor with a compressor stage and corresponding mounting method of the compressor stage - Google Patents

Description

The invention relates to a radial gear compression and a method for mounting the compressor stage of the radial gear compressor.

Compressors or fluid compressing devices are used in various industries for various applications involving compression or compression of fluids, especially (process) gases. Well-known examples of this are turbo compressors in mobile industrial applications, such as in exhaust gas turbochargers or in jet engines, or even in stationary industrial applications, such as transmission turbo compressors for air separation.

In such - in its operation continuously working - turbo compressor, the pressure increase (compression) of the fluid is effected by an angular momentum of the fluid from entry to exit by a rotating radially extending blades having impeller of the turbo compressor is increased by the rotation of the blades , Here, i. In such a compressor stage, pressure and temperature of the fluid increase while the relative (flow) velocity of the fluid in the impeller decreases. In order to achieve the highest possible pressure increase or compression of the fluid, a plurality of such compressor stages can be connected in series.

As types of turbocompressors, a distinction is made between radial and axial compressors.

In the axial compressor, the fluid to be compressed, for example, a process gas, flows in a direction parallel to the axis (axial direction) through the compressor. In which Radial compressor flows the gas axially into the impeller of the compressor stage and is then deflected outwards (radial, radial direction). With multi-stage centrifugal compressors, a flow diversion becomes necessary behind each stage.

Combined types of axial and radial compressors suck with their axial stages large volume flows, which in the subsequent. Radial stages are compressed to high pressures.

While mostly single-shaft machines are used, gear compressor compressors, the individual compressor stages are grouped around a large wheel, with several parallel shafts, each carrying one or two - housed in spiral housings - wheels are driven by a large drive gear, a large wheel.

To optimize the flow guidance through the compressor or by a compressor stage and thus to optimize the performance of the compressor or the compressor stage list it also known, the impeller inlet Einleitleitat (shortly below ELA) and / or the impeller an outlet guide (short in the following ALA).

Such a gear compressor, a gear turbo compressor from Siemens called STC-GC, used for the air separation, is from http://www.energy.siemens.com/hq/en/compression-expansionventilation/turbo-compressor/transmissionurbo-compressor/stc-gc , htm (available on January 10, 2011).

From the document US 5,490,760 is a radial gear compressor of the type mentioned above.

Furthermore, it is known that in a gear compressor, for example, for the air separation, usually a large driving range in a map of the compressor in the direction smaller volume flows at almost constant pressure (turn-down driving range) is required.

If these transmission compressors were designed for a final pressure that corresponds to the required final pressure at the operating points, the turn-down driving range would be too small. As a result, transmission compressors are usually designed for a higher final pressure, so that the characteristic diagram (in the sense of the twist characteristic curve) has a required width at the required final pressure of the operating points.

However, then the operating points of the gear compressor are relatively far away from the maximum efficiency, which is usually in the vicinity of the internal Auslegepunktes.

A possible improvement could be achieved if in the map a flatter pump boundary line curve, and thus the necessary map width could be achieved with higher efficiency.

In order to influence the characteristic map, it is known to change the angle of attack of blades of an outlet guide apparatus, in the following referred to as outlet guide vanes.

Such influence on the flow pattern after the impeller of a compressor or a compressor stage must be limited to a flow guide in front of the impeller, i. in the inlet guide, be matched, which requires a coordinated or combined adjustment of inlet and outlet guide vanes.

A backdrop is a used in mechanical transmission element for power transmission (link guide).

The gate has a slot, web or a groove in / on which a sliding block is forcibly guided on both sides to a movement of the backdrop in a movement of the Implementing Kulissenstein. A transfer function (also coupling function) of the slotted guide is determined by the course of the guide, ie by the course of the slot, web or groove, and is freely selectable within wide limits. The slotted guide is used in particular for the realization of complex transfer functions.

The invention has for its object to provide a device for angular adjustment of blades of a Austrittsleitapparats a compressor, which improves the disadvantages of the prior art, easy and inexpensive to implement and also easy and inexpensive to assemble or in a compressor or a compressor stage is to be installed.

The object is achieved by the radial gear compressor and by the method for mounting the compressor stage of the radial gear compressor with the features according to the respective independent claim.

The device for angular adjustment of blades of an outlet guide of a compressor comprises a plurality of (angle) adjustable blades, which are each mounted on a shaft in a housing, in particular in a spiral housing.

The shafts each have a (adjustment) lever or are each connected to a (adjusting) lever, which is guided using a link - in particular via the (adjustment) levers mounted and guided in the scenes roles.

The scenes are in turn arranged on an adjusting ring (also in the following setting retaining ring) or connected to a setting ring or gate retaining ring.

When adjusting this adjusting ring can thus be the blades or the (inflow) Wihkeln the blades - adjust according to the realized through the backdrop Verstellmimik - whereby the flow of the blades changed and influence on the characteristics of the compressor can be taken.

When mounting this device in the housing of the compressor - and coupling the angle adjustment of the Australsleitapparats (ALA) with a Eintrittsleitapparat (ELA) or with an angular displacement of blades of the inlet guide of the compressor - are first the blades of the Austrittleitapparats on the respective shaft, Rollers on the respective (adjusting) lever and the scenes on the adjusting ring - and the adjusting ring mounted on the inlet guide.

The shafts are mounted in the housing and the (adjustment) levers are mounted on the shafts.

Thereafter, the entrance guide is mounted in / on the housing, with the rollers are inserted into the respective gate, whereby the coupling of the angle adjustment of ALA and ELA is realized.

Preferred developments of the invention will become apparent from the dependent claims.

A particular advantage of the invention is that it realizes a very simple, inexpensive and flexible and highly efficient adjustment mechanism for the blades of the ALA, which moreover, via coupling of the adjusting ring with the ELA or with the adjustment mechanism of the ELA to the ELA Adjustment - by means of an ELA adjustment cylinder - can be connected (combined ELA-ALA (angle) adjustment) - and thus requires no separate, separate drive for adjustment.

A combined, mutually tunable ELA-ALA angle adjustment and thus a desired influence on the map of the compressor (to optimize its performance) is possible.
In addition, it proves to be advantageous that such a combined ELA-ALA adjustment mechanism can be arranged inside the housing, invisibly from the outside.

About a - simple processing methods - flexible design of the backdrop or the slide guide, for example, by machining a groove or slot in the backdrop and / or alignment of the scenery on the collar, any coupling functions or Verstellmimiken - for the combined Angle adjustment - realize.

Thus it can be provided in a preferred embodiment that the slotted guide is designed as a slot, web or groove in / on the backdrop. Preferably, it can further be provided here that a roller guided on the (adjusting) lever is used as the element guided in the link. Particularly preferably, it can be provided to penetrate by machining a, in particular straight, groove in the backdrop, in which then the guided element or the role is guided or moved.

In such straight grooves or slots, the production is simple, but the coupling of ELA angle to ALA angle (combined ELA-ALA adjustment) still subjected to trigonometric functions. By appropriate processing, e.g. By milling, of guide surfaces or of rolling surfaces (guided in scenes roles as guided elements) in / on the backdrop can be implemented almost any coupling functions.

Simple, linear coupling functions, such as ramps or sawtooth profiles with arbitrary gradients or "Translations" as well as complex, non-linear couplings can be realized in this way.

It is also possible, for example, to decouple the combined ELA-ALA adjustment in desired angular ranges of the ELA by incorporating a surface which is neutral (90 °) to the rolling circle of a roller guided in the scenery (in some areas decoupling or dead gear).

In a preferred embodiment, it is provided that the scenes via one or more eccentric units, for example consisting of an eccentric with eccentric, clamping and Verstellschräübe, in particular via two eccentric units, is bolted to the adjusting ring. Such screwing the backdrop with the adjusting ring through the one or through the two or more Exzehtereinheiten allows a simple and flexible erection of the backdrop on the collar - and thus Einflüssnahme on the coupling function. For this purpose, it can also be provided that - by appropriate design of, for example, the housing or other elements with access opening or the like, the adjustment also in the mounted state, e.g. virtually closed spiral housing, can be done.

In a preferred embodiment, it is provided to adjust the adjustment mechanism or the adjusting mechanism by appropriate design and / or orientation of the link in such a way that an angular reduction in the combined ELA-ALA angle adjustment is realized. That is, a greater angular displacement of the ELA blades results in a smaller angular displacement in the ALA blades.

Thus, for example, the adjustment mimic can be adjusted in such a way, for example by a correspondingly aligned ramp as link guide, that an ELA angle adjustment of 60 ° leads to an ALA angle adjustment of 45 °.

In addition, the invention with its adjusting mechanism according to the invention proves to be advantageous in that it causes in the direction of force ALA -> ELA or contrary to the adjustment ELA - > ALA (ie an adjustment of the ELA blades on the realized by the Verstellmechahik coupling also the idea the ALA blades), in particular in the range of a realized reduction, is self-locking. Thus, an additional clamping of the mechanism is unnecessary, which simplifies the construction of a combined angle adjustment accordingly.

Also, the invention allows, in particular by its simple, constructive structure, the use or the use of commercially available sliding and rolling bearings for storage in the invention of moving elements.

Thus, it can be provided in a preferred embodiment, the (adjustment) lever with the use of a (adjusting) lever arranged in / on the scenes to lead. This role can be fixed or stored according to a further preferred embodiment by means of a plain bearing bush and a threaded pin on the (adjustment) lever - and secured using one or more retaining rings.

By using such bearing elements, a frictional ratio can be minimized at the drive power to be applied during blade adjustment, in particular combined blade adjustment. Also, the invention thereby enables, i. through the use of such conventional bearing elements, a cost-effective design of the angle adjustment.

Furthermore, it proves to be advantageous in the invention that the components according to the invention, such as the (adjustment) lever and / or the backdrop, can run as small and / or simple turned and milled parts, the no further requirements for a conventional processing put.

Also, the invention can be used identical for left- and right-handed compressor. Furthermore, it proves to be advantageous in the invention that it can be used or used independently of the number of blades of the ELA as well as of the number of blades of the ALA and thus correspondingly flexibly.

In a preferred embodiment, it is provided that the adjusting ring is connected by connection to an adjusting element of the ELA, for example with a collar of the ELA or with the adjusting ring for the ELA-shovels. The angle adjustment of the ELA blades - by turning the ELA adjusting ring - thus leads to (coupled or combined) angle adjustment of the ALA blades.

In a further preferred embodiment it can be provided that the attachment of the blade to the shaft is carried out using a sleeve, wherein the blade, the sleeve and the shaft via one or more pins, in particular a threaded pin and / or a dowel pin in the axial Direction can be held together.

From a strength standpoint, this connection is from blade to shaft, i. attaching the bucket to the shaft, a critical area. During operation of the compressor, the blading is directly in contact with the fluid to be delivered, since this is to influence the direction of flow. As a result, the blading or the blades are exposed but also occurring flow surges and vibrations or corresponding loads, in particular at the limits of the driving range.

In order to take these loads into account, the connection between the blade and the shaft can be massively carried out via the (blade) sleeve. In a particularly preferred embodiment, it is provided that the blade, the sleeve and the shaft are held together via a central threaded pin in the axial direction. The bucket, the sleeve and the shaft can then be pinned together. By the pins in the blade and the sleeve at the same time a release of the central threaded pin is excluded. When fully assembled, all pins can be connected to the front of adjacent components, so that a release in the operating state is excluded.

In the invention further proves to be particularly advantageous that it is divisible and thus easy to install. Thus, a divisibility of the device at a junction between the (adjustment) lever and the link, in particular between a (adjusting) lever arranged on the roller and the scenery executed. During assembly, the inlet guide can be mounted in / on the housing so that the rollers are inserted into the respective slot.

Under certain circumstances, this divisibility may also be possible, especially with large volute casings.

In a preferred embodiment, it may be provided for this purpose that the slide and / or the roller arranged on the (adjustment) lever have / has a mounting bevel, in particular as a threading aid.

The compressor is a gear compressor, in particular its multi-stage gear compressor, in which case the angular adjustment according to the invention can be realized in one or more stages of this gear compressor. The compressor or the multi-stage gear compressor can preferably be used for air separation.

Of particular advantage in the invention proves that this also for use in large volute casing of compressors, in particular. Transmission compressors, or Compressor stages is suitable. Previously known constructions of angular displacements of blades were intended for small spiral housings, since here a spiral insert is used within the spiral housing and thus an adjustment mechanism can be easily integrated and divisible for assembly. Now, the invention also allows the use of an angle adjustment for large volute casing.

Furthermore, the invention makes it possible to increase the efficiency of a compressor designed according to the invention in performance-rated high operating points which lie in the partial and / or overload range in the swirl characteristic diagram of the compressor. In particular, it proves here in the invention of great advantage that can be improved or extended by the realized angle adjustment of the driving range of, in particular multi-stage, compressors.

In figures, an embodiment of the invention is shown which will be explained in more detail below.

FIG 1

Skizze eines Spiralgehäuses einer Verdichterstufe eines Getriebeverdichters;

FIG 2

Skizze eines Schnittes durch das Spiralgehäuse nach FIG 1 mit einer kombinierten Austrittsleitapparat (ALA)/Eintrittsleitapparat (ELA)-Winkelverstellung;

FIG 3.

Skizze eines weiteren Schnittes durch das Spiralgehäuse nach FIG 1 mit der kombinierten ALA-ELA-Winkelverztellung;

FIG 4

Skizze eines Schnittes durch die- Schnittzeichnung nach FIG 3 mit einer Kulissenmechanik der kombinieren ALA-ELA-Winkelverstellung;

FIG 5

Skizze eines weiteren Schnittes durch das Spiralgehäuse nach FIG 1 mit der kombinierten ALA-ELA-Winkelverstellung;

FIG 6

Skizze eines weiteren Schnittes durch das Spiralgehäuse nach FIG 1 mit einer Exzentereinheit zur Verschraubung der Kulisse mit einem Kulissenhaltering (ALA-Stellring) der kombinierten ALA-ELA-Winkelverstellung;

FIG 7

Skizze einer Schaufel-Welle-(Verstell-)Hebel-Einheit der kombinierten ALA-ELA-Winkelverstellung;

FIG 8

Skizze einer Verschraubung der Schaufel mit der Welle der Schäufel-Welle-(Verstell-)Hebel-Einheit nach FIG 7;

FIG 9

Skizze einer Befestigung des (Verstell-)Hebels an der Welle sowie einer Lagerung der Rolle an dem (Verstell-)Hebel der Schaufel-Welle-(Verstell-) Hebel-Einheit nach FIG 7.

Show it

FIG. 1

Sketch of a volute casing of a compressor stage of a gear compressor;

FIG. 2

Sketch of a section through the spiral housing after FIG. 1 with a combined exit nozzle (ALA) / inlet guide (ELA) angle adjustment;

FIG. 3

Sketch of a further section through the spiral housing FIG. 1 with the combined ALA-ELA angular distribution;

FIG. 4

Sketch of a section through the - sectional drawing to FIG. 3 with a sliding mechanism of the combine ALA-ELA angle adjustment;

FIG. 5

Sketch of a further section through the spiral housing FIG. 1 with the combined ALA-ELA angle adjustment;

FIG. 6

Sketch of a further section through the spiral housing FIG. 1 with an eccentric unit for screwing the gate with a gate retaining ring (ALA collar) of the combined ALA-ELA angle adjustment;

FIG. 7

Sketch of a blade-shaft (adjustment) lever unit of the combined ALA-ELA angle adjustment;

FIG. 8

Sketch of screwing the blade with the shaft of the trough shaft (adjustment) lever unit after FIG. 7 ;

FIG. 9

Sketch of an attachment of the (adjustment) lever to the shaft and a bearing of the roller to the (adjustment) lever of the blade-shaft (adjustment) lever unit after FIG. 7 ,

Exemplary embodiment: Coupled or combined outlet guide device (ALA) / inlet guide device (ELA) angle adjustment of a compressor stage with spiral housing (with assembly procedure)

(a) Construction

FIG. 1 shows a volute casing 101 of a compressor stage 100 of a multi-shaft gear compressor for air separation.

This compressor stage 100 initially has the usual construction of a compressor stage 100 arranged in a spiral housing 101 with an impeller, an inlet guide apparatus (ELA) 103 upstream of the impeller and an outlet guide apparatus (ALA) 103 connected downstream of the impeller. However, in this compressor stage 100, an angle adjustment of blades of the ELA 29 is coupled with an angular adjustment of blades of the ALA 11 via an adjustment mechanism 4 or adjustment mimic.

In the following FIGS. 2 to 9, further details of this adjustment mechanism 4 accommodated in the spiral housing 101 or adjustment mechanism, i. the coupled exit nozzle (ALA) / Eintrittsleitapparat (ELA) angle adjustment shown.

In order to enable the angular displacement or rotation of ALA blades 11, each of these ALA blades 11 is mounted on a single shaft 12 in the spiral housing 101 (FIGS. 2, 3, 5, 7, to 9).

From a strength standpoint, this connection is from ALA blade 11 to shaft 12 (FIGS. 7 and 8), i. the attachment of the ALA blade 11 to the shaft 12, a critical area. During operation of the compressor, this blading 1 is directly in contact with the fluid to be delivered. As a result, the blading 1 or the ALA blades 11 are exposed to flow surges and vibrations or corresponding loads, in particular at the limits of the driving range.

In order to take these loads into account, the connection of the ALA blade 11 to the shaft 12 is made massive via a (blade) sleeve 14. The blade 11, the sleeve 14 and the shaft 12 are held together via a central threaded pin 17 in the axial direction. The blade 11, the sleeve and the shaft 12 are then pinned together ( FIG. 8 ).

By the pins 110 in the blade 11 and the sleeve 14 at the same time a release of the central threaded pin 17 is excluded.

In the assembled state, all pins 110 are connected or covered on the face side by adjacent components, so that loosening in the operating state is precluded.

On the shafts 12 each sit - with the waves 12 pinned - roller levers or adjusting levers 15, which engage over rollers 13 in scenes 24. For this purpose, the scenes 24 straight slots 26, in which these rollers 13 are guided in each case (Figures 2 to 6).

FIG. 9 shows the storage of such a roller 13 on the roller lever 15 in detail. The roller 13 is seated on a plain bearing bushing 16, which in turn is mounted on a threaded pin 17 and secured there with a ring 18 and with a retaining ring 19. The threaded pin 17 is bolted to the roller lever 15 to block and secured there by a dowel pin 110.

The scenes 24 are each connected via two recorded in a gate holder 23 eccentric 3 fixed to this gate retaining ring (ALA collar) 23 or screwed (Figures 4 and 5).

FIG. 5 shows such an eccentric unit 3 in detail. The eccentric unit 3 has an eccentric 31 with two bores 37. For this purpose, the eccentric 31 there is a connected to the gate 24 eccentric pin 32, this eccentric 32 locking circlip 34, a mounting hopper 33 and a cylinder screw 25 through which the clamping and Fixation occurs, on. Via the second bore 37, the adjustment of the eccentric 3, ie the orientation of the gate 24 on the crank retaining ring 23. For this purpose, the eccentric 31 there is a cylinder screw 25, via which the adjustment takes place by rotation of the eccentric 31 in the link retaining ring 23 on.

The gate retaining ring 23 is in turn firmly connected or screwed together by means of a construction comprising a plurality of ring carriers 21 distributed over the circumference of the link retaining ring 23 with cylindrical screws 25 and spacing cylinders 22 with an adjusting ring of the ELA (ELA adjusting ring) 27. FIG. 3 ).

If the ELA angle, i. the angle position of the ELA blades 29 and thus the flow of the ELA 103, adjusted so rotates the ELA-adjusting ring 27. The ALA blading 1, 11 performs according to the translation / reduction on the scenes 24 and the roller lever 15 with this rotation out.

(b) divisibility of the adjustment mechanism

In this adjusting mechanism or Verstellmimik 3 roller lever 15 is connected to the spiral housing 101 and the gate retaining ring 24 to the suction flange 105. Since these components are successively mounted on the gearbox, the Verstellmimik 3 is carried out according to divisible.

The division of Verstellmimik 3 takes place at the contact points of rollers 133 and scenes 24. For this purpose, scenes 24 and rollers 13 with mounting chamfers 39 as Einfädelhilfe understand.

(c) Assembly procedure 1. Pre-assembly (guide) paddle unit 1 Pre-assembly shaft 12 and blade 11

For the blading 1 of the ALA 102, the Schaufelmuffe 14 is first placed on the ALA shaft 12 and bolted via the threaded pin 17 with the blade 11. Subsequently, radial and axial dowel pins 110 are bored and used for securing the position of blades 11 and ALA shaft 12.

Pre-assembly roller lever 15

The roller 13, the plain bearing bushing 16 and the ring 18 are secured to the locking ring 19 on the threaded pin 17. This is screwed into the roller lever 15 to block, then drilled and secured by dowel pins 110.

2. Pre-assembly of the scenes 24 on Eintrittsleitapparat (ELA) 103

To prepare the gate holder ring 23, two eccentric units 3 are screwed to a gate 24 in each of these. The locking screws 25 are only loosely screwed. The tightening and thus the clamping takes place after setting the slide position (see point 4.).

On the ELA 103, the ring carriers 21 with cylindrical screws 25 and distance cylinders 22 on the ELA adjusting ring 27 are to be fastened radially. Subsequently, the preassembled link retaining ring 23 is screwed to the ring carriers 21.

3. Assembly of the guide blade units 1 in the spiral housing 101 (to each other, 0 °)

In the spiral housing 101 bores corresponding to the neutral and limit positions of the ALA blading 1 are introduced in the late contact surface of the diffuser disk 101.

The adjustment takes place without diffuser disc, whereby in the final state the diffuser disc covers the setting bore. Thus, the flow space is smooth and at the same time the adjustment holes are available for later alignment work. For mounting, the plain bearing bushes 16 are first placed in the shaft seats 28 in the spiral housing 101. Subsequently, the preassembled vane units 1 are stretched from the spiral rear side (collar side) and the blades 11 are brought into contact with the pins.

The preassembled roller levers 15 are then occupied on the shafts 12 and aligned in a circle. This adjustment is fixed via the preassembly thread 38 of the roller lever 15.

Subsequently, roller lever 15 and ALA shafts 12 are pinned together. Thus, the adjusting torque can be transmitted and the stator blades 1 are axially secured.

4. Final settings ALA angle / ELA angle (marriage of the adjustment mechanism 3)

For final adjustment, the finished housing of the gearbox is hung on the spiral housing 101. For accessibility reasons pinion shaft and contour / inlet ring are omitted.

The positioning pins for AlA zeroing are removed and suction flange 105 and attached ELA.103 are inserted axially with the linkage attachment. All rollers 13 slide in their respective backdrop 24th

The ELA 103 must be manually moved to its maximum co-rotating position (85 °). Through the coupling, the ALA blades 11 adjust any.

These are to bring through the eccentric 31 in its first limit position (according to the coupling law). Accessibility is given for the adjusting tool, in this case a hexagon key in the ball head, via the adjusting bores 107 in the suction flange 105.

To control the ALA angular position, the holes and the abutment pins in the spiral housing 101 (bearing surface Diffüsorscheibe 106) are used.

Afterwards, the ELA 103 is manually brought into its largest counter-rotating position (-35 °). As a result, the ALA blades 11 adjust again. This second position of the ALA blades 11 is again on the eccentric 31 gem. Setpoint adjusted.

To secure the settings then all eccentric units 3 are clamped over their cylinder screws 25 in the link retaining ring 23.

After disassembly of suction flange 105 with ELA extensions 103, the scenes 24 are bolted with linkage ring 23 and pinned.

Claims (10)

1. Radial geared compressor (100) comprising a plurality of compressor stages which are grouped around a bull gear, wherein the geared compressor has a plurality of parallel shafts which in each case carry one or two impellers which is, or are, accommodated in scroll casings,
   wherein the shafts are driven by a bull gear, wherein a given compressor stage of the geared compressor has an inlet guide vane apparatus (103) with a plurality of vanes (29) which are angularly adjustable by means of an angular adjustment arrangement,
   characterized by

   - the given compressor stage comprising an exit guide vane apparatus (102) with a plurality of vanes (11) which are angularly adjustable by means of an angular adjustment arrangement,

   - a device for the coupled angular adjustment of the vanes (11) of the exit guide vane apparatus (102) and of the vanes (29) of the inlet guide vane apparatus (103) of the compressor stage of the geared compressor (100),

   - wherein the vanes (11) of the exit guide vane apparatus (102) are mounted in each case on a shaft (12) in a casing (101) of the compressor stage and the shafts (12) have in each case an adjusting lever (15) which is guided using a slotted link (24), wherein the slotted links (24) are arranged on an adjusting ring (23) of the exit guide vane apparatus (102) so that with adjustment of the adjusting ring (23) the angular adjustment of the vanes (11) of the exit guide vane apparatus (102) can be realized, and

   - wherein the adjusting ring (23) of the exit guide vane apparatus (102) is connected to the inlet guide vane apparatus (103) in such a way that the adjustment of the adjusting ring (23) of the exit guide vane apparatus (102) is coupled to the angular adjustment of the vanes (29) of the inlet guide vane apparatus (103).
2. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the adjusting ring (23) of the exit guide vane apparatus (102) is connected to an adjusting ring (27) of the inlet guide vane apparatus (103) by means of which, during its adjustment, the angular adjustment of the vanes (29) of the inlet guide vane apparatus (103) can be realized.
3. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the adjusting lever (15) is guided in the slotted link (24) using a roller (13) which is arranged on the lever (15).
4. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the slotted link (24) has an elongated hole (26), especially a straight elongated hole (26), and/or has a surface which is neutral to a roll circle of a roller (13) which is arranged on the lever (15) and guided in the slotted link (24).
5. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   fastening of the vanes (11) on the shaft (12) is carried out using a sleeve (14), wherein in particular the vanes (11), the sleeve (14) and the shaft (12) are held together in the axial direction via a pin (17), especially a threaded pin (17).
6. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the device for the angular adjustment is of a separable construction, the separability especially being carried out at a connecting point between the adjusting lever (15) and the slotted link (24), especially between a roller (13), which is arranged on the adjusting lever (15), and the slotted link (24) .
7. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the slotted link (24) and/or a roller (13), which is arranged on the adjusting lever (15), have, or has, an installation chamfer, especially as a lead-in aid.
8. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the casing (101) is a scroll casing (101).
9. Radial geared compressor (100) according to at least one of the preceding claims,
   characterized in that
   the geared compressor (100) is a multistage geared compressor (100), used for an air separation plant.
10. Method for the mounting of the compressor stage of the radial geared compressor (100) according to one of the preceding device claims, with coupling of the angular adjustment of the exit guide vane apparatus (102) to the angular adjustment of the inlet guide vane apparatus (103) of the compressor stage of the geared compressor (100), in which

    - first of all,

    - the vanes (11) of the exit guide vane apparatus (102) are mounted on the respective shaft (12) and rollers (13) are mounted on the respective adjusting lever (15) and

    - the slotted links (24) are mounted on the adjusting ring (23) of the inlet guide vane apparatus (103) and the adjusting ring (23) is mounted on the inlet guide vane apparatus (103) and

    - the shafts (12) are installed in the casing (101) and the adjusting levers (15) are mounted on the respective shaft (12)

    - then

    - the inlet guide vane apparatus (103) is installed in the casing (101), wherein the rollers (13) are introduced into the respective slotted link (24), as a result of which the coupling is brought about.

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