CN216009032U - Auxiliary supporting structure for compressor unit - Google Patents
Auxiliary supporting structure for compressor unit Download PDFInfo
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- CN216009032U CN216009032U CN202121093981.0U CN202121093981U CN216009032U CN 216009032 U CN216009032 U CN 216009032U CN 202121093981 U CN202121093981 U CN 202121093981U CN 216009032 U CN216009032 U CN 216009032U
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Abstract
The utility model discloses an auxiliary supporting structure for a compressor unit, which comprises a stator support, wherein the bottom of the stator support is provided with a supporting frame, the top of the stator support is movably provided with a strut, the vertical lower half part of the strut is externally provided with a sleeve, the upper half part of the strut is externally provided with a supporting nut capable of moving along the strut, and the upper end of the supporting nut is fixedly connected with an adjusting gasket; the auxiliary supporting device is arranged on the centrifugal compressor, so that the compression of a stator part in the compressor on the gearbox body is effectively reduced, the deformation of the gearbox body is avoided, the reduction of the efficiency of the compressor and the influence of operation caused by the fact that the sealing gap between the impeller and the stator is enlarged due to the deformation of the gearbox body are further avoided, and the technical problem that the deformation of the gearbox body caused by the stator part in a large-scale multi-shaft compressor cannot be completely eliminated due to the fact that the wall thickness of the gearbox body and the number of rib plates are increased in the prior art is solved.
Description
Technical Field
The utility model belongs to the field of compressors, relates to a part supported by a compressor unit, and particularly relates to an auxiliary supporting structure for the compressor unit.
Background
The multi-shaft centrifugal compressor is a fluid flow machine, belonging to multistage, high-speed, multi-suction and gas-stage cooling, and is generally driven by motor or steam turbine. In terms of structure, the gear and the compressor are integrated, and an impeller, a volute and the like of the compressor part are connected to the multi-shaft gear box. In energy conversion, mechanical energy provided by the driving machine is transmitted to process gas in the multi-shaft centrifugal compressor impeller, and accelerated process gas flowing out of the impeller is accelerated and converted into pressure energy after being collected in the volute. The volute and other stator parts are connected to the gear box through half flanges and bolts, and the structure is equivalent to a cantilever structure, so that the weight of the parts is directly borne by the gear box.
On one hand, the deformation affects the alignment of a coupler, the position of a bearing, the meshing contact area of a gear, the parallelism and the verticality of a gear shaft and the like, so that the operational reliability of meshing of a gear pair is related, vibration is generated, and the service life of a compressor is shortened; on the other hand, the deformation of the gear housing also increases the sealing gap between the impeller and the stator, which results in the reduction of the compressor efficiency. The above two effects are particularly evident for large multi-shaft centrifugal compressors. At present, in order to reduce the deformation of the gear box body, the deformation problem can be generally solved at home and abroad by designing a thicker box body wall and arranging more dense rib plates no matter the size of the machine type, but the rotor dynamics calculation of the compressor can be influenced by the excessively thick box body wall, and for a large-scale multi-shaft compressor, the deformation cannot be completely eliminated by singly increasing the wall thickness of the gear box body wall.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an auxiliary supporting structure for a compressor unit, and solves the technical problem that the deformation of a gearbox body caused by stator parts in a large-scale multi-shaft compressor cannot be completely eliminated by increasing the thickness of the gearbox body wall and the number of rib plates in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an auxiliary supporting structure for a compressor unit comprises a stator support, wherein a supporting frame is arranged at the bottom of the stator support, a supporting column is movably arranged at the top of the stator support, a sleeve is arranged outside the vertical lower half part of the supporting column, a supporting nut capable of moving along the supporting column is arranged outside the upper half part of the supporting column, and an adjusting gasket is fixedly connected to the upper end of the supporting nut; the adjusting gasket is movably provided with a supporting gasket;
the utility model also has the following technical characteristics:
specifically, a first gap exists between the inner wall of the sleeve and the outer wall of the strut.
Specifically, the support nut comprises an adjusting part and a limiting part.
Specifically, the adjusting part is connected with the strut through threads; the limiting part extends into a first gap between the sleeve and the support;
a second gap is formed between the inner wall of the limiting part and the outer wall of the strut; and a third gap is formed between the outer wall of the limiting part and the inner wall of the sleeve.
Specifically, the support frame is a hollow trapezoidal column formed by a plurality of rib plates, and at least one rib plate in the plurality of rib plates is obliquely arranged.
Specifically, the bottom of the sleeve is fixedly mounted on the stator support through a screw.
Specifically, the adjusting shim is a spherical shim; the supporting gasket is a spherical gasket.
Specifically, the upper part of the pillar is provided with a lifting hole.
Specifically, the pillar is a multistage round platform with the diameter decreasing from bottom to top in sequence.
Specifically, the end surface of the support pillar contacting the stator support is a spherical surface.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the utility model, (I) the auxiliary supporting device is arranged on the centrifugal compressor, so that the compression of a stator part in the compressor on the gearbox body is effectively reduced, the deformation of the gearbox body is avoided, the influence of reduction of the efficiency of the compressor and the influence of operation caused by the fact that the sealing gap between the impeller and the stator is enlarged due to the deformation of the gearbox body is further avoided, and the technical problem that the deformation of the gearbox body caused by the stator part in a large-scale multi-shaft compressor cannot be completely eliminated due to the increase of the wall thickness of the gearbox body and the number of the rib plates in the prior art is solved.
The height of the auxiliary supporting structure can be adjusted according to specific conditions during installation by arranging the supporting nut, and the device is further provided with the adjusting gasket and the supporting gasket, so that the device can be slightly adjusted upwards from an angle direction when the device generates slight deviation due to assembly adjustment requirements or machining precision.
Drawings
Fig. 1 is a schematic view of the overall structure of an auxiliary support structure for a compressor unit.
Fig. 2 is a partial sectional structural view of the auxiliary support structure.
The meaning of the individual reference symbols in the figures is: 1-stator support, 2-support, 3-sleeve, 4-support nut, 5-adjusting gasket, 6-support gasket, 7-first gap, 8-thread, 9-third gap, 10-support frame, 11-screw, 12-lifting hole, 13-centrifugal compressor base, 14-third gap, and 15-rib plate;
401-adjusting part, 402-limiting part.
The present invention will be explained in further detail with reference to examples.
Detailed Description
All parts in the present invention are those known in the art, unless otherwise specified.
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
this embodiment has given an auxiliary stay structure for compressor unit, as shown in fig. 1, including stator support 1, stator support 1's bottom is provided with support frame 10, and stator support 1's top movable mounting has pillar 2, and the sleeve 3 is installed outward to the lower half of pillar 2, and the support nut 4 that can follow pillar 2 removal is installed outward to the first half of pillar 2, and the upper end of support nut 4 has linked firmly adjusting shim 5, and movable mounting has supporting shim 6 on adjusting shim 5.
Through the above arrangement mode, the auxiliary supporting device is arranged on the centrifugal compressor, compression of a stator part in the compressor to the gearbox body is effectively reduced, deformation of the gearbox body is avoided, further deformation of the gearbox body is avoided, sealing gaps between the impeller and the stator can also be enlarged, reduction of efficiency of the compressor and influence of operation are caused, and the technical problem that the deformation of the gearbox body caused by the fact that the stator part in a large-scale multi-shaft compressor cannot be thoroughly eliminated by increasing the wall thickness of the gearbox body and the number of the rib plates in the prior art is solved.
As a preferred scheme of this embodiment, there is first gap 7 between the outer wall of pillar 2 and the inner wall of sleeve 3, sets up first gap and has made things convenient for the installation, has also reserved installation and removal space for the spacing portion of support nut simultaneously.
As a preferable aspect of the present embodiment, the support nut 4 includes an adjusting portion 401 and a stopper portion 402.
As a preferable mode of the present embodiment, the adjusting part 401 is connected to the pillar 2 by a screw thread 8; the limiting part 402 extends into the first gap 7 between the sleeve 3 and the pillar 2;
a second gap 14 is formed between the inner wall of the limiting part 402 and the outer wall of the strut 2; there is third gap 9 between the outer wall of spacing portion 402 and the inner wall of sleeve 3, sets up the second gap and has guaranteed that support nut 4 screw in more easily when the installation, sets up the third gap and has guaranteed that support nut can not cause the damage to the sleeve when vertical removal.
As a preferable scheme of this embodiment, the support frame 10 is a hollow trapezoidal column composed of a plurality of rib plates 15, at least one rib plate 15 of the plurality of rib plates 15 is disposed in an inclined manner, the support frame is disposed to meet the requirement of the support device for height, the support rigidity of the base is increased, the requirement of fixing the support device on the compressor is also met, and the arrangement manner of the rib plates increases the stability of the device.
As a preferable solution of this embodiment, the bottom of the sleeve 3 is fixedly mounted on the stator support 1 by screws 11, which are simple and convenient to fix.
As a preferable solution of this embodiment, the adjusting shim 5 is a spherical shim; the supporting gasket 6 is a spherical gasket; the spherical spacers are selected as the adjusting spacers and the supporting spacers, and the spherical spacers and the supporting spacers are matched to ensure that the device can be subjected to micro-adjustment in an angular direction when the device is deviated.
As a preferable solution of this embodiment, the upper portion of the pillar 2 is provided with a lifting hole 12, which facilitates the installation and removal.
As a preferable scheme of this embodiment, the pillar 2 is a multi-stage circular truncated cone whose diameter decreases from bottom to top, and the pillar is arranged in a circular truncated cone shape, so that the stability of the supporting device is increased.
As a preferable scheme of the present embodiment, an end surface of the pillar 2 contacting the stator support 1 is a spherical surface, and the spherical surface is provided to facilitate fine adjustment of the device during installation.
The working process of the utility model is as follows:
firstly, welding the stator support 1 and the support frame 10 on the centrifugal compressor base 13, leveling and placing the multi-shaft gear box on the centrifugal compressor base 13, fixedly placing the support column 2 on the stator support 1 through the lifting hole 8, keeping the upper plane of the support column 2 horizontal, penetrating the sleeve 3 from the top of the support column 2, and fixing the sleeve on the stator support 1 through the screw 11.
Then, the supporting nut 4 is penetrated from the top end of the pillar 2 and screwed into a certain depth through threads, the depth needs to ensure that the whole auxiliary supporting component and the compressor stator (volute) have a clearance of several millimeters after being installed, then the adjusting gasket 5 is placed on the supporting nut 4, the supporting gasket 6 is placed on the adjusting gasket 5, and the top surface of the adjusting gasket 5 is kept horizontal.
Finally, the compressor stator (volute) is installed and adjusted in place according to design requirements. And then the support nut 4 is reversely rotated by a wrench, so that the auxiliary support is adjusted in the vertical direction until the support gasket 6 is contacted with two planes of the compressor stator (volute), and the auxiliary support is ensured to bear certain weight of the stator (volute).
Claims (10)
1. The utility model provides an auxiliary stay structure for compressor unit, includes stator support (1), its characterized in that, the bottom of stator support (1) be provided with support frame (10), the top movable mounting of stator support (1) has pillar (2), sleeve (3) are installed outward to the lower half of pillar (2), support nut (4) that can follow pillar (2) removal are installed outward to the upper half of pillar (2), the upper end of support nut (4) has linked firmly adjusting shim (5), movable mounting has supporting shim (6) on adjusting shim (5).
2. Auxiliary support structure for compressor units according to claim 1, characterized in that a first gap (7) is present between the inner wall of the sleeve (3) and the outer wall of the column (2).
3. Auxiliary supporting structure for compressor groups according to any of claims 1 or 2, characterized in that said supporting nut (4) comprises an adjusting portion (401) and a limiting portion (402).
4. Auxiliary support structure for a compressor unit according to claim 3, characterized in that said adjustment portion (401) is connected to the supporting pillar (2) by means of a screw thread (8); the limiting part (402) extends into a first gap (7) between the sleeve (3) and the strut (2);
a second gap (14) is formed between the inner wall of the limiting part (402) and the outer wall of the strut (2); a third gap (9) is formed between the outer wall of the limiting part (402) and the inner wall of the sleeve (3).
5. The auxiliary support structure for a compressor unit according to claim 1, wherein the support frame (10) is a hollow trapezoidal column formed by a plurality of rib plates (15), and at least one rib plate (15) of the plurality of rib plates (15) is arranged in an inclined manner.
6. Auxiliary support structure for compressor units according to claim 1 or 2, characterized in that the bottom of the sleeve (3) is fixedly mounted on the stator support (1) by means of screws (11).
7. Auxiliary supporting structure for compressor units according to claim 1, characterized in that said spacer shims (5) are spherical shims; the supporting gasket (6) is a spherical gasket.
8. Auxiliary support structure for compressor units according to claim 1, characterized in that the upper part of said uprights (2) is provided with lifting holes (12).
9. Auxiliary support structure for a compressor unit according to claim 1, characterized in that said uprights (2) are multi-step truncated cones of successively decreasing diameter from bottom to top.
10. Auxiliary support structure for a compressor unit according to claim 1, characterized in that the end surface of the strut (2) in contact with the stator support (1) is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093981.0U CN216009032U (en) | 2021-05-20 | 2021-05-20 | Auxiliary supporting structure for compressor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093981.0U CN216009032U (en) | 2021-05-20 | 2021-05-20 | Auxiliary supporting structure for compressor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009032U true CN216009032U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121093981.0U Active CN216009032U (en) | 2021-05-20 | 2021-05-20 | Auxiliary supporting structure for compressor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009032U (en) |
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2021
- 2021-05-20 CN CN202121093981.0U patent/CN216009032U/en active Active
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