CN1234961C - Method for transporting steam turbine and appts. for helping such transportation of steam turbine - Google Patents
Method for transporting steam turbine and appts. for helping such transportation of steam turbine Download PDFInfo
- Publication number
- CN1234961C CN1234961C CN 99123263 CN99123263A CN1234961C CN 1234961 C CN1234961 C CN 1234961C CN 99123263 CN99123263 CN 99123263 CN 99123263 A CN99123263 A CN 99123263A CN 1234961 C CN1234961 C CN 1234961C
- Authority
- CN
- China
- Prior art keywords
- rotor
- housing
- steam turbine
- sealing gasket
- limiter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention provides a device for transporting a steam turbine which comprises a rotor which extends along a longitudinal axis and is provided with multiple stages of fixed blades and movable blades, a casing which is supported by a basic structure and is used for encapsulating the rotor, a bearing for supporting the rotor in a rotary mode, and a pair of sealing gaskets for sealing the casing and the rotor, wherein the casing comprises side flanges longitudinally opposed; the sealing gaskets are arranged at both sides of the rotor outside the casing and are connected to the side flanges of the casing by a pair of tension elements. The device comprises limiters for replacing the sealing gaskets after the sealing gaskets are disassembled from the rotor and the casing, wherein the limiters are arranged on the rotor on which the sealing gaskets are arranged, and are fixed on the side flanges of the casing so that the rotor and the casing are connected to limit the relative movement of the rotor and the casing; the limiters bear the weight of the rotor and the bearing.
Description
Technical field
The device that the present invention relates to transport the method for steam turbine and help the transportation steam turbine.
Background technique
In general, steam turbine comprises a rotor and a housing sealing rotor.Be provided with the pair of bearings case in the relative end of rotor, bearing housing is sealed the bearing of rotatable support rotor opposed end.
Housing comprises steam inlet, and steam flows to the turbine part that is arranged on the rotor both sides symmetrically by this import.Each turbine portion branch comprises multistage around reaching the static and moving vane that is provided with along rotor.
In the prior art, in order to transport, steam turbine must be dismantled, because rotor is not to be rigidly connected to housing, can cause the rotation between housing and the rotor when the steam turbine of assembling is sling for transportation.
Summary of the invention
The present invention is intended to solve above-mentioned the problems of the prior art, the purpose of this invention is to provide the improved method of transporting steam turbine, and the device that helps the transportation steam turbine, makes steam turbine can need not to dismantle the transportation of turbine ground.
The invention provides a kind of method of transporting steam turbine, this steam turbine comprises that one is used to seal the housing of rotor, the bearing that is used for the rotatably support rotor and a pair of sealing gasket that seals of being used for along vertical axis extension and rotor, with multistage static and moving vane by the fondational structure supporting between housing and rotor, described housing comprises vertically relative side flange, described sealing gasket is installed on the both sides outside housing of rotor and is connected in by a pair of flexible element on the side flange of housing, said method comprising the steps of: pull down sealing gasket from rotor; Remove the step of flexible element from housing; Limiter is installed on the rotor and is installed on the side flange of housing in that the sealing gasket place once is installed, thereby make rotor and housing interconnect with restriction relative movement therebetween the weight of limiter carrying rotor and bearing; And be connected in transportation housing and rotor under the situation of rotor at bearing.
According to another feature of the present invention, a kind of device that helps to transport steam turbine is provided, steam turbine comprises that a rotor, that extends and have multistage static and moving vane along the longitudinal axis is used to seal the housing of rotor, the bearing that is used for the rotatably support rotor and a pair of sealing gasket that seals of being used for by the fondational structure supporting between housing and rotor, housing comprises vertically relative side flange, sealing gasket is installed on the sealing gasket part, the gasket portion branch be arranged on rotor on the side of the outside of housing and be installed in by a pair of flexible element on the relevant side flange of housing.This device comprises limiter, and it is suitable for sealing gasket is being pulled down back replacement seal pad from rotor and housing.Limiter is assemblied on the rotor and is fixed on the side flange of housing in that the sealing gasket place once is installed, thereby makes rotor and housing interconnect with restriction relative movement therebetween the weight of limiter carrying rotor and bearing.
According to the present invention, when slinging steam turbine, limiter fixed rotor on radially reaching axially also carries the weight of forwarding son and bearing housing.
Description of drawings
Consult the following drawings now and further describe above-mentioned purpose and advantage with other of the present invention.
Fig. 1 is the overall sectional view that has according to the steam turbine of the device of the help of preferred embodiment of the present invention transportation steam turbine;
Fig. 2 is that this device is installed between the housing and rotor of steam turbine shown in Figure 1 along the amplification view of the device of the help transportation steam turbine of the preferred embodiment of the present invention of II-II line among Fig. 3;
Fig. 3 is the end elevation along the device of the help transportation steam turbine of III-III line among Fig. 2;
Fig. 4 is the general view of steam turbine, and steam turbine is sling so that transport among the figure;
Fig. 5 is mounted in the rotor of steam turbine shown in Figure 1 and the cross-sectional figure of the sealing gasket on the housing; And
Fig. 6 has installed so that the cross-sectional figure of the steam turbine of proper functioning.
Fig. 6 is the overall sectional view of the steam turbine that is suitable for of the present invention.Specifically, Fig. 6 represents a low-pressure turbine as an example, and this steam turbine has installed so that proper functioning.
Embodiment
This low-pressure turbine comprises a rotor 12 along the steam turbine vertical axis extension.This low-pressure turbine also comprises a housing 11 that is used to seal rotor 12.The opposed end of rotor 12 extends from housing 11.Pair of bearings 13a is installed on the platform 19, the opposed end outside housing 11 of rotatably support rotor 12.The bearing housing 13 that is used to seal bearing 13a also is installed in platform 19.
Consult Fig. 5 now, a sealing gasket 17 is set on every side of housing 11 outside rotors 12, rotor 12 has a thick 12a there, is called the sealing gasket part in this manual.Sealing gasket 17 comprises labyrinth gland 16, and this is known in this specialty.Sealing gasket 17 is connected in the side flange 11a of housing 11 by flexibleness stretching hose member 18, and member 18 is gone up and is installed in by bolt 21 on the flange portion 17a of sealing gasket 17 by the side flange 11a that bolt 20 is installed in housing 11.Sealing gasket 17 also is connected in bearing housing 13 by carriage 24, and carriage 24 is installed on the sealing gasket 17 and by bolt 23 by bolt 22 and is installed on the bearing housing 13.
Though the detailed structure of not drawing sealing gasket 17 in the accompanying drawing,, for dress on rotor 12, tear sealing gasket 17 open, sealing gasket 17 is made of two and half ones, the combination and separately on the separated time of a longitudinal extension of this two and half, this is known in this specialty.
As mentioned above, sealing gasket 17 is connected in the side flange 11a of housing 11 by flexibleness stretching hose member 18.Therefore, if be connected in the low-pressure turbine of slinging under the situation of rotor 12 ends at bearing housing 13 so that transportation, rotor 12 will be removed from the appropriate location radial and axial, and because of the weight self of rotor 12 and bearing housing 13 bends, this is because flexibleness stretching pipe component 18 can not carry the cause of this weight.In the prior art, this manufacturer, setter or service worker that forces low-pressure turbine with its dismounting so that transportation.
According to the present invention, when the transportation low-pressure turbine, sealing gasket 17 is limited device 1 and substitutes, as Fig. 1, shown in 2 and 3.
Work according to the low-pressure turbine of present embodiment is described below.
Before the low-pressure turbine transportation, dismantle bolt 20 and 21, thus flexibleness stretching pipe component 18 is pulled down from the side flange 11a and the sealing gasket 17 of housing 11.Then, laying down bolt 22 takes sealing gasket 17 and carriage 24 apart.Laying down bolt 23 also can pull down carriage 24 from bearing housing 13.Sealing gasket 17 splits into two halves so that pull down from rotor 12 at vertical separated time place.
By assemble the first and second half ones 2 and 3 mutually at vertical separated time Lj place, limiter 1 is installed on the rotor 12, thereby the main body of limiter 1 is assemblied on the sealing gasket part 12a of rotor 12, shown in Fig. 2 and 3.Pass radial flange 2b by tightening, 2c, the bolt 4 of 3b and 3c, 12a is clipped in therebetween with the sealing gasket part, thereby the first and second half ones 2 are firmly linked to each other mutually with 3.Simultaneously, end boss 2d by tightening the side flange 11a that passes housing 11 and the limiter 1 that assembles and the bolt 5 of 3d, thus make the limiter 1 that assembles be connected in the side flange 11a of housing 11.
Then, a crane (not shown) is sling by hook 31 and the low-pressure turbine that the rope 32 that is connected in the carriage 33 of supporting structure 30 will have housing 11, rotor 12 and the bearing housing of assembling, as shown in Figure 4.When slinging low-pressure turbine, limiter 1 fixed rotor 12 and carry rotor 12 and the weight of bearing housing 13 on radial and axial.
It is a preferred embodiment disclosed by the invention that those skilled in the art is obviously understood above-described, can make various modifications and variations and not exceed scope of the present invention it.
Claims (7)
1. method of transporting steam turbine, this steam turbine comprises that one is used to seal the housing of rotor, the bearing that is used for the rotatably support rotor and a pair of sealing gasket that seals of being used for along vertical axis extension and rotor, with multistage static and moving vane by the fondational structure supporting between housing and rotor, described housing comprises vertically relative side flange, described sealing gasket is installed on the both sides outside housing of rotor and is connected in by a pair of flexible element on the side flange of housing, said method comprising the steps of:
Pull down sealing gasket from rotor;
Remove the step of flexible element from housing;
Limiter is installed on the rotor and is installed on the side flange of housing in that the sealing gasket place once is installed, thereby make rotor and housing interconnect with restriction relative movement therebetween the weight of limiter carrying rotor and bearing; And
Be connected in transportation housing and rotor under the situation of rotor at bearing.
2. the method for transportation steam turbine as claimed in claim 1 is characterized in that: further comprising the steps of:
One rope is connected in fondational structure;
This rope is hooked on the crane; And
Sling steam turbine so that the transportation steam turbine.
3. the method for transportation steam turbine as claimed in claim 1, it is characterized in that: limiter comprises that one is suitable for being assemblied in epitrochanterian cylindrical shape part and an end boss part in that the sealing gasket place once is installed, this end boss partly is connected on the end of cylindrical shape part, so that be installed on the side flange of housing.
4. help the device of transportation steam turbine, this steam turbine comprises that one is used to seal the housing of rotor, the bearing that is used for the rotatably support rotor and a pair of sealing gasket that seals of being used for along vertical axis extension and rotor, with multistage static and moving vane by the fondational structure supporting between housing and rotor, described housing comprises vertically relative side flange, described sealing gasket is installed on the both sides outside housing of rotor and is connected in by a pair of flexible element on the side flange of housing, and described device comprises:
Limiter, it is suitable for replacement seal pad after pulling down sealing gasket from rotor and housing, described limiter is assemblied on the rotor and is fixed on the side flange of housing in that the sealing gasket place once is installed, thereby rotor and housing are interconnected with restriction relative movement therebetween, the weight of described limiter carrying rotor and bearing.
5. device as claimed in claim 4 is characterized in that: described fondational structure comprises a plurality of carriages, and rope is connected on the described carriage, so that sling steam turbine.
6. device as claimed in claim 4 is characterized in that: described limiter comprise one be suitable for once install the sealing gasket place be assemblied in epitrochanterian cylindrical shape part and one be connected in this cylindrical shape partly usefulness be installed in end boss part on the side flange of housing.
7. device as claimed in claim 6, it is characterized in that: described limiter is included in the first and second half ones of combination on the separated time of a longitudinal extension, in the first and second half ones each comprises the semicircular cylinder part, forms the cylindrical shape part when the first and second half ones mutually combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123263 CN1234961C (en) | 1999-10-29 | 1999-10-29 | Method for transporting steam turbine and appts. for helping such transportation of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123263 CN1234961C (en) | 1999-10-29 | 1999-10-29 | Method for transporting steam turbine and appts. for helping such transportation of steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1294253A CN1294253A (en) | 2001-05-09 |
| CN1234961C true CN1234961C (en) | 2006-01-04 |
Family
ID=5282851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99123263 Expired - Lifetime CN1234961C (en) | 1999-10-29 | 1999-10-29 | Method for transporting steam turbine and appts. for helping such transportation of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1234961C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009235971A (en) * | 2008-03-26 | 2009-10-15 | Mitsubishi Heavy Ind Ltd | Seal member, steam turbine, and method of avoiding resonance |
| CN110541735B (en) * | 2019-08-23 | 2024-06-21 | 中信重工机械股份有限公司 | Rotor fixing device for whole turbine transportation of steam turbine |
-
1999
- 1999-10-29 CN CN 99123263 patent/CN1234961C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1294253A (en) | 2001-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| BB1A | Publication of application | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MITSUBISHI HITACHI POWER SYSTEM LTD. Free format text: FORMER OWNER: MITSUBISHI JUKOGIO KK Effective date: 20150403 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150403 Address after: yokohama Patentee after: Mitsubishi Hitachi Power System Ltd. Address before: Tokyo, Japan Patentee before: Mit-subishi Heavy Industries Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060104 |