Title of Invention	DEVICE FOR THE LATERAL MOUNTING AND DISMOUNTING OF A COMPRESSOR BARREL
Abstract	A turbocompressor contains a compressor barrel (2) which consists of an inner core section (11) with horizontally split discs (12) screwed to one another and to a cap (13), of a bearing block (14) with bearings and of a rotor (9) inserted into the inner core section (11). The casing (1) of the turbocompressor is vertically split and is provided with a suction connecting piece (7) and a pressure connecting piece (8) in the region of the bottom two thirds of the casing circumference. For the lateral fitting and removal of the compressor barrel (2) into or from the casing (1), a supporting arm (15) is releasably connected to the cap (13) of the compressor barrel (2), said supporting arm (15) extending above the compressor barrel (2) in its longitudinal direction and being displaceably supported on the casing (1) of the turbocompressor. Releasably fastened to the bearing block (14) is a supporting device (19) which is displaceably arranged in the longitudinal direction of the compressor barrel (2).

Title of Invention

DEVICE FOR THE LATERAL MOUNTING AND DISMOUNTING OF A COMPRESSOR BARREL

Abstract

A turbocompressor contains a compressor barrel (2) which consists of an inner core section (11) with horizontally split discs (12) screwed to one another and to a cap (13), of a bearing block (14) with bearings and of a rotor (9) inserted into the inner core section (11). The casing (1) of the turbocompressor is vertically split and is provided with a suction connecting piece (7) and a pressure connecting piece (8) in the region of the bottom two thirds of the casing circumference. For the lateral fitting and removal of the compressor barrel (2) into or from the casing (1), a supporting arm (15) is releasably connected to the cap (13) of the compressor barrel (2), said supporting arm (15) extending above the compressor barrel (2) in its longitudinal direction and being displaceably supported on the casing (1) of the turbocompressor. Releasably fastened to the bearing block (14) is a supporting device (19) which is displaceably arranged in the longitudinal direction of the compressor barrel (2).

Full Text	The invention concerns a device for the lateral mounting and dismounting of a compressor barrel of a turbocompressor into or out of a casing, which is vertically split, with the features of the introductory clause of Claim 1. Turbocompressors with a vertically split casing are used especially for high gas pressures. The mounting devices that are already known in practice for turbocompressors with horizontal connections use a guide, which ~ guided from the drive side into the casing of the turbocompressor -- maintains the complete compressor barrel in equilibrium in a horizontal position, while on the non-drive side there is axially sliding support relative to the base frame. The complete compressor barrel, which is supported in this way and consists of the inner core section with seals and the rotor supported in the bearings, is then axially mounted or dismounted. Another mounting device uses an existing crane for maintaining the equilibrium instead of the support described above. In this regard, a cable is placed around the compressor barrel and held by the crane. This requires repeated resetting of the position of the cable with the risk of damage. Both of the mounting devices described above presuppose that the complete compressor barrel is pulled. The above-described mounting devices cannot be used when the compressor barrel must be pulled incompletely, that is, without the drive-side bearing. In this case, the rotor is not supported on the drive side. The objective of the invention is to create a device for mounting and dismounting a compressor barrel, in which the rotor is not unilaterally supported on the drive side by the already dismounted radial ball bearing and the rotor must be maintained in equilibrium during the mounting and dismounting. In accordance with the invention, this objective is achieved in a device of this general type by the characterizing features of Claim 1. Advantageous modifications of the invention are objects of the dependent claims. With the aid of the supporting arm supported on the compressor casing and the supporting device connected with the bearing block, the compressor barrel can be maintained in equilibrium from one side, even if the rotor is not yet held or is no longer held on the other side in a radial ball bearing. This is advantageous especially when lateral guide rails for the mounting device cannot be mounted due to the horizontal position of the suction connection and the pressure connection on the compressor casing, and when, on the drive side of the turbocompressor, accessibility is limited by the structural design of the base forged onto the compressor casing. A specific embodiment of the invention is illustrated in the drawings and explained in greater detail below. -- Figure 1 shows a longitudinal section through a turbocompressor with a mounting/dismounting device. -- Figure 2 shows a side view of the turbocompressor shown in Figure 1. The drawings show a multistage turbocompressor with a vertically split casing 1 in a state in which the compressor barrel 2 is located outside the casing 1 immediately before mounting or immediately after dismounting. The casing 1 of the turbocompressor has a vertical joint 3 and is unilaterally closed by a forged base 4 on one side. The compressor drive (not shown) is provided on this side of the turbocompressor. The base 4 holds a bearing for supporting the rotor 9, which will be described later. The casing 1 has casing feet 5 by which it rests on a base frame 6. A suction connection 7 and a pressure connection 8 are connected to the casing 1. In the illustrated embodiment, the two connections 7, 8 are located in the horizontal center plane of the casing 1. Depending on requirements, the two connections 7, 8 can also be arranged in the lower two thirds of the casing circumference in a position between the 2 o'clock position and the 10 o'clock position. The compressor barrel 2 is shown as though it were already mounted for installation in the casing 1. It consists of a rotor 9 with a shaft and of impellers 10 mounted in a rotationally rigid way on the shaft. The rotor 9 is inserted in a stationary inner core section 11. This inner core section 11 consists of disks 12, which enclose the impellers 10 of the rotor 9 and define internal return channels between the impellers 10 and to the connections 7, 8. The individual disks 12 are horizontally split and bolted together. A cap 13 is bolted onto the first disk 12 of the compressor barrel 2. The compressor barrel 2 also comprises a bearing block 14 with bearings for supporting one end of the rotor 9. A supporting arm 15 is releasably connected on the side with the cap 13 of the compressor barrel 2 for mounting or dismounting. The supporting arm 15 extends above the compressor barrel 2 in its longitudinal direction and is dimensioned sufficiently long that it projects beyond the inner core section 11. A roller 16 is mounted at the free end of the supporting arm 15. The roller 16 can roll along a track 17 to a position 16'. The track 17 is installed on the casing 1 of the turbocompressor above the'suction connection 7 and the pressure connection 8. At the end of the track 17 that faces the supporting arm 15, a stop 18 is provided on the casing 1 to prevent the roller 16 from rolling back over the edge of the casing 1. The supporting arm 15 supports the compressor barrel 2 in such a way that it can be axially displaced on the casing 1. A supporting device 19 is releasably connected with the bearing block 14 of the compressor barrel 2. The supporting device 19, which is shown in greater detail in Figure 2, consists of two obliquely set supports 20, which are joined by a crossbar 21. Below each support 20 of the supporting device 19, there is a guideway 22, which supports the supporting device 19 and allows it to be displaced in the longitudinal direction of the compressor barrel 2. A hoist 23 is mounted on either side of the turbocompressor. The flexible traction mechanism 24 of the hoist 23 is releasably connected with the supporting arm 15 at one end and with the casing 1 at the other end. A tackle line 25 acts on the supporting device 19 for the purpose of dismounting. A cable 26 of this tackle line 25 is guided around a cable pulley 27 to a cable drive that is located outside the turbocompressor and is not shown in the drawings. The cable pulley 27 is rotatably supported in a hinged support 28 that is anchored on the base frame 6. The guidance of the cable 26 of the above-described tackle line 25 is selected in such a way that the segment of the cable 26 between the supporting device 19 and the deflection point of the cable around the cable pulley 27 lies in the longitudinal axis of the compressor barrel 2. To prepare for mounting or to complete the dismounting, the compressor barrel 2 is mounted on a V-block in order to guarantee reliable support of the compressor barrel 2 during the attachment or detachment of the supporting arm 15 and the supporting device 19. Before being mounted in the casing 1, the compressor barrel 2 is oriented in such a way that its longitudinal axis comes into alignment with the extension of the longitudinal axis of the casing 1, that the end of the rotor 9 that faces away from the supporting arm 15 extends into the casing 1, and that the roller 16 sits on the track 17 on the casing 1 behind the stop 18. The supporting arm 15 and the supporting device 19 with the compressor barrel 2 are axially displaced by operation of the hoists 23 until the compressor barrel 2 occupies the intended position in the casing 1. During the insertion of the compressor barrel 2 into the casing 1, a temporary guide 29 inside the base 4 of the casing 1 provides reliable support of the rotor 9. The temporary guide is later replaced by a bearing. During dismounting, the compressor barrel 2 is pulled out by means of the tackle line 25. WE CLAIM: 1. Device for the lateral mounting and dismounting of a compressor barrel (2) of a turbocompressor into or out of a casing (1) of the turbocompressor, where the compressor barrel (2) consists of an inner core section (11) with horizontally split disks (12), which are bolted together and are bolted to a cap (13), of a bearing block (14) with bearings, and of a rotor (9) inserted in the inner core section (11), and where the casing (1) is vertically split and is provided with a suction connection (7) and a pressure connection (8) in the area of the lower two thirds of the casing circumference, characterized by the fact that a supporting arm (15) is releasably connected with the cap (13) of the compressor barrel (2), that the supporting arm (15) extends above the compressor barrel (2) in its longitudinal direction and is displaceably supported on the casing (1) of the turbocompressor, that a supporting device (19) is releasably mounted on the bearing block (14), and that the supporting device (19) is mounted in such a way that it can be displaced in the longitudinal direction of the compressor barrel (2). 2. Device in accordance with Claim 1, characterized by the fact that a hoist (23) is mounted on either side of the turbocompressor and that one end of each hoist (23) is connected with the supporting arm (15), while the other end is connected with the casing (1). 3. Device in accordance with Claim 1 or Claim 2, characterized by the fact that a tackle line (25) located outside the turbocompressor acts on the supporting device (19) in the direction of the longitudinal axis of the compressor barrel (2). 4. Device in accordance with any of Claims 1 to 3, characterized by the fact that a roller (16) is mounted at the free end of the supporting arm (15) that faces away from the cap (13), that the roller (16) runs on a track (17), and that the track (17) is installed on the casing (1) of the turbocompressor above the suction connection (7) and the pressure connection (8). 5. Device in accordance with Claim 4, characterized by the fact that a stop (18) is provided on the track (17) to limit the displacement of the supporting arm (15). 6. Device in accordance with any of Claims 1 to 5, characterized by the fact that a temporary guide (29) is provided in the base (4) of the casing (1). Dated this 21st day of May 2007. A turbocompressor contains a compressor barrel (2) which consists of an inner core section (11) with horizontally split discs (12) screwed to one another and to a cap (13), of a bearing block (14) with bearings and of a rotor (9) inserted into the inner core section (11). The casing (1) of the turbocompressor is vertically split and is provided with a suction connecting piece (7) and a pressure connecting piece (8) in the region of the bottom two thirds of the casing circumference. For the lateral fitting and removal of the compressor barrel (2) into or from the casing (1), a supporting arm (15) is releasably connected to the cap (13) of the compressor barrel (2), said supporting arm (15) extending above the compressor barrel (2) in its longitudinal direction and being displaceably supported on the casing (1) of the turbocompressor. Releasably fastened to the bearing block (14) is a supporting device (19) which is displaceably arranged in the longitudinal direction of the compressor barrel (2).

Full Text

The invention concerns a device for the lateral mounting and dismounting of a
compressor barrel of a turbocompressor into or out of a casing, which is vertically split, with
the features of the introductory clause of Claim 1.
Turbocompressors with a vertically split casing are used especially for high gas
pressures. The mounting devices that are already known in practice for turbocompressors
with horizontal connections use a guide, which ~ guided from the drive side into the casing of
the turbocompressor -- maintains the complete compressor barrel in equilibrium in a
horizontal position, while on the non-drive side there is axially sliding support relative to the
base frame. The complete compressor barrel, which is supported in this way and consists of
the inner core section with seals and the rotor supported in the bearings, is then axially
mounted or dismounted.
Another mounting device uses an existing crane for maintaining the equilibrium
instead of the support described above. In this regard, a cable is placed around the
compressor barrel and held by the crane. This requires repeated resetting of the position of
the cable with the risk of damage.
Both of the mounting devices described above presuppose that the complete
compressor barrel is pulled. The above-described mounting devices cannot be used when the
compressor barrel must be pulled incompletely, that is, without the drive-side bearing. In this
case, the rotor is not supported on the drive side.
The objective of the invention is to create a device for mounting and dismounting a
compressor barrel, in which the rotor is not unilaterally supported on the drive side by the
already dismounted radial ball bearing and the rotor must be maintained in equilibrium during
the mounting and dismounting.
In accordance with the invention, this objective is achieved in a device of this general
type by the characterizing features of Claim 1. Advantageous modifications of the invention
are objects of the dependent claims.

With the aid of the supporting arm supported on the compressor casing and the
supporting device connected with the bearing block, the compressor barrel can be maintained
in equilibrium from one side, even if the rotor is not yet held or is no longer held on the other
side in a radial ball bearing. This is advantageous especially when lateral guide rails for the
mounting device cannot be mounted due to the horizontal position of the suction connection
and the pressure connection on the compressor casing, and when, on the drive side of the
turbocompressor, accessibility is limited by the structural design of the base forged onto the
compressor casing.
A specific embodiment of the invention is illustrated in the drawings and explained in
greater detail below.
-- Figure 1 shows a longitudinal section through a turbocompressor with a
mounting/dismounting device.
-- Figure 2 shows a side view of the turbocompressor shown in Figure 1.
The drawings show a multistage turbocompressor with a vertically split casing 1 in a
state in which the compressor barrel 2 is located outside the casing 1 immediately before
mounting or immediately after dismounting.
The casing 1 of the turbocompressor has a vertical joint 3 and is unilaterally closed by
a forged base 4 on one side. The compressor drive (not shown) is provided on this side of the
turbocompressor. The base 4 holds a bearing for supporting the rotor 9, which will be
described later. The casing 1 has casing feet 5 by which it rests on a base frame 6. A suction
connection 7 and a pressure connection 8 are connected to the casing 1. In the illustrated
embodiment, the two connections 7, 8 are located in the horizontal center plane of the casing
1. Depending on requirements, the two connections 7, 8 can also be arranged in the lower
two thirds of the casing circumference in a position between the 2 o'clock position and the 10
o'clock position.

The compressor barrel 2 is shown as though it were already mounted for installation in
the casing 1. It consists of a rotor 9 with a shaft and of impellers 10 mounted in a rotationally
rigid way on the shaft. The rotor 9 is inserted in a stationary inner core section 11. This inner
core section 11 consists of disks 12, which enclose the impellers 10 of the rotor 9 and define
internal return channels between the impellers 10 and to the connections 7, 8. The individual
disks 12 are horizontally split and bolted together. A cap 13 is bolted onto the first disk 12 of
the compressor barrel 2. The compressor barrel 2 also comprises a bearing block 14 with
bearings for supporting one end of the rotor 9.
A supporting arm 15 is releasably connected on the side with the cap 13 of the
compressor barrel 2 for mounting or dismounting. The supporting arm 15 extends above the
compressor barrel 2 in its longitudinal direction and is dimensioned sufficiently long that it
projects beyond the inner core section 11. A roller 16 is mounted at the free end of the
supporting arm 15. The roller 16 can roll along a track 17 to a position 16'. The track 17 is
installed on the casing 1 of the turbocompressor above the'suction connection 7 and the
pressure connection 8. At the end of the track 17 that faces the supporting arm 15, a stop 18
is provided on the casing 1 to prevent the roller 16 from rolling back over the edge of the
casing 1. The supporting arm 15 supports the compressor barrel 2 in such a way that it can be
axially displaced on the casing 1.
A supporting device 19 is releasably connected with the bearing block 14 of the
compressor barrel 2. The supporting device 19, which is shown in greater detail in Figure 2,
consists of two obliquely set supports 20, which are joined by a crossbar 21. Below each
support 20 of the supporting device 19, there is a guideway 22, which supports the supporting
device 19 and allows it to be displaced in the longitudinal direction of the compressor barrel
2.
A hoist 23 is mounted on either side of the turbocompressor. The flexible traction
mechanism 24 of the hoist 23 is releasably connected with the supporting arm 15 at one end
and with the casing 1 at the other end.
A tackle line 25 acts on the supporting device 19 for the purpose of dismounting. A
cable 26 of this tackle line 25 is guided around a cable pulley 27 to a cable drive that is

located outside the turbocompressor and is not shown in the drawings. The cable pulley 27 is
rotatably supported in a hinged support 28 that is anchored on the base frame 6. The guidance
of the cable 26 of the above-described tackle line 25 is selected in such a way that the
segment of the cable 26 between the supporting device 19 and the deflection point of the
cable around the cable pulley 27 lies in the longitudinal axis of the compressor barrel 2.
To prepare for mounting or to complete the dismounting, the compressor barrel 2 is
mounted on a V-block in order to guarantee reliable support of the compressor barrel 2 during
the attachment or detachment of the supporting arm 15 and the supporting device 19. Before
being mounted in the casing 1, the compressor barrel 2 is oriented in such a way that its
longitudinal axis comes into alignment with the extension of the longitudinal axis of the
casing 1, that the end of the rotor 9 that faces away from the supporting arm 15 extends into
the casing 1, and that the roller 16 sits on the track 17 on the casing 1 behind the stop 18. The
supporting arm 15 and the supporting device 19 with the compressor barrel 2 are axially
displaced by operation of the hoists 23 until the compressor barrel 2 occupies the intended
position in the casing 1. During the insertion of the compressor barrel 2 into the casing 1, a
temporary guide 29 inside the base 4 of the casing 1 provides reliable support of the rotor 9.
The temporary guide is later replaced by a bearing. During dismounting, the compressor
barrel 2 is pulled out by means of the tackle line 25.

WE CLAIM:
1. Device for the lateral mounting and dismounting of a compressor barrel (2) of a
turbocompressor into or out of a casing (1) of the turbocompressor, where the compressor
barrel (2) consists of an inner core section (11) with horizontally split disks (12), which are
bolted together and are bolted to a cap (13), of a bearing block (14) with bearings, and of a
rotor (9) inserted in the inner core section (11), and where the casing (1) is vertically split and
is provided with a suction connection (7) and a pressure connection (8) in the area of the
lower two thirds of the casing circumference, characterized by the fact that a supporting arm
(15) is releasably connected with the cap (13) of the compressor barrel (2), that the supporting
arm (15) extends above the compressor barrel (2) in its longitudinal direction and is
displaceably supported on the casing (1) of the turbocompressor, that a supporting device (19)
is releasably mounted on the bearing block (14), and that the supporting device (19) is
mounted in such a way that it can be displaced in the longitudinal direction of the compressor
barrel (2).
2. Device in accordance with Claim 1, characterized by the fact that a hoist (23) is
mounted on either side of the turbocompressor and that one end of each hoist (23) is
connected with the supporting arm (15), while the other end is connected with the casing (1).
3. Device in accordance with Claim 1 or Claim 2, characterized by the fact that a
tackle line (25) located outside the turbocompressor acts on the supporting device (19) in the
direction of the longitudinal axis of the compressor barrel (2).
4. Device in accordance with any of Claims 1 to 3, characterized by the fact that a
roller (16) is mounted at the free end of the supporting arm (15) that faces away from the cap
(13), that the roller (16) runs on a track (17), and that the track (17) is installed on the casing
(1) of the turbocompressor above the suction connection (7) and the pressure connection (8).
5. Device in accordance with Claim 4, characterized by the fact that a stop (18) is
provided on the track (17) to limit the displacement of the supporting arm (15).
6. Device in accordance with any of Claims 1 to 5, characterized by the fact that a
temporary guide (29) is provided in the base (4) of the casing (1).
Dated this 21st day of May 2007.

A turbocompressor contains a compressor barrel (2) which consists of an inner core section
(11) with horizontally split discs (12) screwed to one another and to a cap (13), of a bearing
block (14) with bearings and of a rotor (9) inserted into the inner core section (11). The casing
(1) of the turbocompressor is vertically split and is provided with a suction connecting piece
(7) and a pressure connecting piece (8) in the region of the bottom two thirds of the casing
circumference. For the lateral fitting and removal of the compressor barrel (2) into or from the
casing (1), a supporting arm (15) is releasably connected to the cap (13) of the compressor
barrel (2), said supporting arm (15) extending above the compressor barrel (2) in its
longitudinal direction and being displaceably supported on the casing (1) of the
turbocompressor. Releasably fastened to the bearing block (14) is a supporting device (19)
which is displaceably arranged in the longitudinal direction of the compressor barrel (2).

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Patent Number

268676

Indian Patent Application Number

2021/KOLNP/2008

PG Journal Number

37/2015

Publication Date

11-Sep-2015

Grant Date

11-Sep-2015

Date of Filing

21-May-2008

Name of Patentee

MAN TURBO AG

Applicant Address

STEINBRINKSTRASSE 1, 46145 OBERHAUSEN

Inventors:

#	Inventor's Name	Inventor's Address
1	ZIEKOWN CHRISTIAN	HEMMINGSTEDTER WEG 3A, 13503 BERLIN
2	MICHLIGK, THOMAS	DREWITZER STRASSE 50, 13467 BERLIN

PCT International Classification Number

F04D 29/62

PCT International Application Number

PCT/EP2006/010256

PCT International Filing date

2006-10-25

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	10 2005 052 077.4	2005-10-28	Germany