CN220849791U - Support device and steam turbine - Google Patents
Support device and steam turbine Download PDFInfo
- Publication number
- CN220849791U CN220849791U CN202322849652.XU CN202322849652U CN220849791U CN 220849791 U CN220849791 U CN 220849791U CN 202322849652 U CN202322849652 U CN 202322849652U CN 220849791 U CN220849791 U CN 220849791U
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- China
- Prior art keywords
- support
- rotor
- bracket
- pillow
- bearing bush
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- 239000000725 suspension Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 241001669679 Eleotris Species 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model belongs to the technical field of turbines, and discloses a supporting device and a turbine. The support device comprises a bracket and two support pieces, wherein the bracket comprises a body and two connection blocks protruding from two sides of the body, the body is semicircular and can support a rotor, the two connection blocks are axially symmetrically arranged along the body, the two support pieces are connected with the pillow, the two connection blocks are correspondingly lapped on the two support pieces one by one, and the connection blocks are detachably connected with the support pieces. When the bearing bush needs to be overhauled, the bearing bush is taken out, two supporting pieces are respectively arranged on two sides of a bearing bush, a connecting block of a bracket is connected with the supporting pieces, a rotor is placed on a body of the bracket, the body can effectively support the rotor, the supporting device can replace the bearing bush to effectively support the rotor, other parts of a steam turbine cannot be damaged, the supporting device is fixedly mounted by depending on an original bearing bush structure, and the bearing bush is simple in structure and convenient and fast to install.
Description
Technical Field
The utility model relates to the technical field of turbines, in particular to a supporting device and a turbine.
Background
The steam turbine is a rotary steam power device, and after entering the steam turbine, steam sequentially passes through a series of annular matched nozzles and movable blades, so that the heat energy of the steam is converted into the mechanical energy of the rotation of a rotor of the steam turbine, and the rotary steam power device is an important device of a power plant. The steam turbine consists of a stator, a rotor, a bearing bush and the like, wherein the rotor is supported by the bearing bush, the bearing bush is arranged in a bearing box, and when the bearing bush needs to be overhauled, if the corresponding high-pressure cylinder or low-pressure cylinder is disassembled, the upper half part and the lower half part of the bearing bush can be directly lifted out for overhauling; however, if the corresponding high-pressure cylinder or low-pressure cylinder does not have the disassembly requirement, namely, when the rotor is not lifted out, the upper half part of the bearing bush is generally removed, then the rotor is jacked up to a certain height by a jack and supported and fixed, the lower half part of the bearing bush is turned 180 degrees along the outer surface of the rotor after the rotor is completed, and then the lower half part of the bearing bush is lifted out for maintenance. When the lower half part of the bearing bush is lifted out for maintenance, the rotor is not supported by the bearing bush, and is supported by a crane or a jack generally, but the jacking height of the rotor cannot be predicted, and when the jacking height of the rotor is too high, damage to internal components of the steam turbine can be caused.
The prior art discloses a rotor strutting arrangement for maintenance of steam turbine axle bush, and this strutting arrangement is including having bearing structure's bracket, the shape is semicircular backing-up ring and stud, and the backing-up ring passes through stud and bracket installation, and the interior cambered surface of backing-up ring is used for supporting steam turbine rotor. However, the above scheme still has the following technical problems: the rotor supporting device needs to be provided with the bracket to support the supporting ring, has a complex structure, and is time-consuming and labor-consuming to install.
Disclosure of utility model
The utility model aims to provide a supporting device and a steam turbine, so as to solve the problems that the existing steam turbine rotor supporting device is complex in structure and time-consuming and labor-consuming to install.
To achieve the purpose, the utility model adopts the following technical scheme:
On the one hand, the utility model provides a supporting device, which comprises a bracket and two supporting pieces, wherein the bracket comprises a body and two connecting blocks which are convexly arranged on two sides of the body, the body is semicircular and can support a rotor, the two connecting blocks are symmetrically arranged along the axial direction of the body, the two supporting pieces are connected with a pillow, the two connecting blocks are correspondingly lapped on the two supporting pieces one by one, and the connecting blocks are detachably connected with the supporting pieces.
As a preferable technical scheme of the supporting device, the supporting piece comprises a first supporting block and a second supporting block which are connected in an angle mode, the first supporting block is connected with the connecting block, and the second supporting block is connected with the tile pillow.
As a preferable technical scheme of the supporting device, the supporting device further comprises a bolt, and the bolt penetrates through the supporting piece and is in threaded connection with the tile pillow.
As a preferable technical scheme of the supporting device, the body is suspended in the pillow.
As a preferred technical scheme of the supporting device, the supporting device further comprises a first hanging ring and a second hanging ring, wherein the first hanging ring is arranged on the connecting block, and the second hanging ring is arranged on the supporting piece.
As a preferable technical scheme of the supporting device, one end of the first hanging ring is in threaded connection with the connecting block, and one end of the second hanging ring is in threaded connection with the supporting piece.
As a preferable technical solution of the supporting device, the supporting device further includes a spacer, and the spacer is disposed on a side of the body away from the pillow.
As a preferable technical scheme of the supporting device, the gasket is made of rubber materials.
As a preferable embodiment of the above supporting device, the bracket and the supporting member are made of carbon steel material.
In another aspect, the present utility model provides a steam turbine, which includes a rotor, a pillow, and a support device according to any one of the above aspects, wherein the support device is disposed on the pillow and is capable of supporting the rotor.
The utility model has the beneficial effects that:
The utility model provides a supporting device which comprises a bracket and two supporting pieces, wherein the bracket comprises a body and two connecting blocks which are convexly arranged on two sides of the body, the body is semicircular and can support a rotor, the two connecting blocks are axially and symmetrically arranged along the body, the two supporting pieces are connected with a pillow, the two connecting blocks are correspondingly lapped on the two supporting pieces one by one, and the connecting blocks are detachably connected with the supporting pieces. When the bearing bush needs to be overhauled, the bearing bush is taken out, two supporting pieces are respectively arranged on two sides of a bearing bush, a connecting block of a bracket is connected with the supporting pieces, a rotor is placed on a body of the bracket, the body can effectively support the rotor, the supporting device can replace the bearing bush to effectively support the rotor, other parts of a steam turbine cannot be damaged, the supporting device is fixedly mounted by depending on an original bearing bush structure, and the bearing bush is simple in structure and convenient and fast to install.
Drawings
FIG. 1 is a schematic view of a rotor support structure of a support device according to the present utility model;
fig. 2 is a schematic structural view of a supporting device provided by the present utility model.
In the figure:
1. a bracket; 11. A body; 12. A connecting block;
2. a support; 21. A first support block; 22. A second support block;
3. A rotor;
4. A pillow;
5. a bolt;
6. A first hanging ring;
7. And the second hanging ring.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The utility model provides a steam turbine, which comprises a rotor 3, a pillow 4 and a supporting device, wherein the supporting device is arranged on the pillow 4 and can support the rotor 3. The steam turbine includes the bearing, and the bearing can support rotor 3, and the bearing includes axle bush and pillow 4, when the needs overhauls the axle bush, jack-up rotor 3, takes out the axle bush to install strutting arrangement on pillow 4 in order to support rotor 3, can replace the axle bush to effectively support rotor 3. The utility model is particularly suitable for a nuclear turbine.
Referring to fig. 1 and 2, the supporting device comprises a bracket 1 and two supporting pieces 2, wherein the bracket 1 comprises a body 11 and two connecting blocks 12 protruding from two sides of the body 11, the body 11 is semicircular and can support a rotor 3, the two connecting blocks 12 are symmetrically arranged along the axial direction of the body 11, the two supporting pieces 2 are connected with a pillow 4, the two connecting blocks 12 are correspondingly lapped on the two supporting pieces 2 one by one, and the connecting blocks 12 are detachably connected with the supporting pieces 2. When the bearing bush is required to be overhauled, the bearing bush is taken out, two supporting pieces 2 are respectively arranged on two sides of the bearing bush 4, a connecting block 12 of the bracket 1 is connected with the supporting pieces 2, the rotor 3 is placed on a body 11 of the bracket 1, the body 11 can effectively support the rotor 3, the supporting device can replace the bearing bush to effectively support the rotor 3, the center of the rotor 3 can be ensured not to be changed, the rotor 3 is accurately positioned, and other parts of the steam turbine cannot be damaged; and the supporting device is fixedly installed by relying on the original tile pillow 4 mechanism, and has simple structure and convenient and quick installation.
Specifically, the size of the bracket 1 can be adjusted according to the diameters of different steam turbine rotors 3 and the sizes of the bearing pads 4, and the supporting device has wide application range.
Specifically, the connection block 12 is detachably connected with the support 2 by a dowel.
Referring to fig. 1 and 2, the support 2 includes a first support block 21 and a second support block 22 connected at an angle, the first support block 21 being connected with the connection block 12, and the second support block 22 being connected with the pillow 4. So set up, not only can be with support piece 2 and pillow 4 fixed connection, can also make bracket 1 and support piece 2 fixed connection, realized setting up bracket 1 in the effect of pillow 4.
Further, the supporting device further comprises a bolt 5, and the bolt 5 penetrates through the supporting piece 2 and is in threaded connection with the pillow 4. So set up, can be convenient and fast ground with support piece 2 and pillow 4 installation and dismantlement, improve this strutting arrangement's installation effectiveness.
Referring to fig. 1, the body 11 is suspended from the pillow 4. So set up, can take out bracket 1 convenient and fast, and bracket 1 and pillow 4 mutually noninterfere, can not take place the damage.
Referring to fig. 1 and 2, the supporting device further comprises a first hanging ring 6 and a second hanging ring 7, wherein the first hanging ring 6 is arranged on the connecting block 12, and the second hanging ring 7 is arranged on the supporting piece 2. The first suspension ring 6 is arranged to lift and remove the bracket 1, and the second suspension ring 7 is arranged to lift and remove the support 2.
Preferably, one end of the first suspension ring 6 is screwed with the connection block 12, and one end of the second suspension ring 7 is screwed with the support 2. So set up, not only can realize the firm connection of first rings 6 with connecting block 12, the firm connection of second rings 7 and support piece 2 can also dismantle first rings 6 in connecting block 12 convenient and fast, dismantle second rings 7 convenient and fast on support piece 2 to take out bracket 1 and support piece 2.
Further, the support device also comprises a spacer, which is placed on the side of the body 11 remote from the pillow 4. When placing rotor 3 on the body 11 of bracket 1, the setting of gasket can effectively avoid taking place friction damage between bracket 1 and the rotor 3, and then guarantees strutting arrangement and rotor 3's life.
Preferably, the gasket is made of a rubber material. The rubber material has excellent wear resistance, and can effectively avoid friction damage between the bracket 1 and the rotor 3; meanwhile, the rubber material also has elasticity, and when the rotor 3 is placed on the body 11 of the bracket 1, the rubber gasket can buffer the stress between the bracket 1 and the rotor 3, so that the bracket 1 and the rotor 3 are prevented from being damaged.
Preferably, the bracket 1 and the support 2 are both made of carbon steel material. The carbon steel material has lower cost, and can effectively reduce the production cost of the supporting device; meanwhile, the carbon steel material has high hardness and strength, and can effectively support the rotor 3.
In particular, the first suspension ring 6 and the second suspension ring 7 are made of a carbon steel material.
The utility model comprises the following steps:
After the upper half part of the bearing bush of the steam turbine is dismantled, the rotor 3 is slightly lifted by a ring crane and other devices so that the lower half part of the bearing bush is turned 180 degrees; fixing the support 2 on the pillow 4 through bolts 5; the bracket 1 is reversely clamped on the rotor 3 and turned 180 degrees to be placed in the lower part of the rotor 3; moving the bracket 1 so that the connection block 12 of the bracket 1 is overlapped on the support 2, and fixing and positioning the connection block 12 and the support 2 by a positioning pin; the ring crane and the like are withdrawn to realize the support of the bracket 1 to the rotor 3.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. The support device is characterized by comprising a bracket (1) and two support pieces (2), wherein the bracket (1) comprises a body (11) and two connecting blocks (12) protruding from two sides of the body (11), the body (11) is semicircular and can support a rotor (3), the two connecting blocks (12) are axially symmetrically arranged along the body (11), the two support pieces (2) are connected with a pillow (4), the two connecting blocks (12) are lapped on the two support pieces (2) in a one-to-one correspondence manner, and the connecting blocks (12) are detachably connected with the support pieces (2).
2. Support device according to claim 1, characterized in that the support (2) comprises a first support block (21) and a second support block (22) connected at an angle, the first support block (21) being connected to the connection block (12) and the second support block (22) being connected to the sleeper (4).
3. The support device according to claim 1, further comprising a bolt (5), said bolt (5) being threaded through said support (2) and in threaded connection with said pillow (4).
4. Support device according to claim 1, wherein the body (11) is suspended from the pillow (4).
5. Support device according to claim 1, characterized in that the support device further comprises a first suspension ring (6) and a second suspension ring (7), the first suspension ring (6) being arranged on the connection block (12) and the second suspension ring (7) being arranged on the support (2).
6. Support device according to claim 5, wherein one end of the first suspension ring (6) is screwed with the connection block (12) and one end of the second suspension ring (7) is screwed with the support (2).
7. Support device according to claim 1, characterized in that it further comprises a spacer placed on the side of the body (11) remote from the pillow (4).
8. The support device of claim 7, wherein the spacer is made of a rubber material.
9. The support device according to any one of claims 1-8, characterized in that the bracket (1) and the support (2) are both made of carbon steel material.
10. Steam turbine, characterized in that it comprises a rotor (3), a pillow (4) and a support device according to any one of claims 1-9, which is arranged on the pillow (4) and is capable of supporting the rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322849652.XU CN220849791U (en) | 2023-10-24 | 2023-10-24 | Support device and steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322849652.XU CN220849791U (en) | 2023-10-24 | 2023-10-24 | Support device and steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220849791U true CN220849791U (en) | 2024-04-26 |
Family
ID=90780369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322849652.XU Active CN220849791U (en) | 2023-10-24 | 2023-10-24 | Support device and steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220849791U (en) |
-
2023
- 2023-10-24 CN CN202322849652.XU patent/CN220849791U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |