CN1193709A - DEvice for rotary machine plant, rotary machine plant and method of demounting section of tubular wall - Google Patents
DEvice for rotary machine plant, rotary machine plant and method of demounting section of tubular wall Download PDFInfo
- Publication number
- CN1193709A CN1193709A CN97113275A CN97113275A CN1193709A CN 1193709 A CN1193709 A CN 1193709A CN 97113275 A CN97113275 A CN 97113275A CN 97113275 A CN97113275 A CN 97113275A CN 1193709 A CN1193709 A CN 1193709A
- Authority
- CN
- China
- Prior art keywords
- whirler
- inner casing
- tubular wall
- wall
- shell
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/007—Preventing corrosion
Abstract
A device used for gyroscope equipment includes a tubular wall (5) and a demountable wall segment (15). The wall segment includes an inner casing and an outer casing and is characterized in that the outer casing includes a first and a second tubular part. The first part is movably arranged on the second part along the axial direction, which leads to that the inner casing can be approached from outside lateral to disassemble the inner casing from parts (41, 42) of the tubular wall which is connected with the inner casing. And the invention also relates to gyroscope equipment which includes the device and a method for disassembling the wall segment (15).
Description
The present invention relates to a kind of device that is used for whirler equipment, this device comprises a movable wall section of a tubular wall, and this movable wall section comprises an inner casing and a shell.And, the invention still further relates to a kind of whirler equipment, this equipment comprises at least two whirlers that are connected with each other through a pipeline, and this pipeline comprises an outside tubular wall and inside tubular walls and settles a conveyance fluid from these whirlers to another whirler.
And, the invention still further relates to a kind of method that is used to dismantle a wall section of a tubular wall, Duan Youyi inner casing of this wall and a shell constitute.
Device of the present invention is particularly conducive to whirler equipment, wherein this whirler equipment has a pipeline, this pipeline comprises an inside tubular walls and an outside tubular wall, and is formed with an annular channel between described wall, and the hot fluid that contains grit should flow through described passage.Therefore, as an example, this device is described with reference to this application.
For dismountable wall section of the routine that comprises an inner casing and a shell of tubular wall, shell generally all has an axial separation face.This parting surface with this shell in two, these two halves are through certain joint, for example screwed joint is connected with each other.Therefore, just these two halves can be separated from each other, make inner casing to come out and then it is disassembled from this tubular wall by the joint that unclamps between the described two halves.
But such device has such shortcoming, and promptly this joint particularly when this joint is the axial ledge joint, when the hot fluid that for example contains grit flows through described joint, as top situation, just is easy to be corroded.
On the other hand, if when the joint on the parting surface between the two halves of shell is welded joint, the tendency that can reduce to corrode really, still, so, but in unloading process releasable joint just to become that a kind of needs carry out be again unpractiaca work.
The whirler equipment of type must carry out maintenance work to whirler sometimes above adopting.This maintenance work may be expensive and need can be near each big and small part of this whirler.For bigger whirler, a kind of high pressure turbine that comprises in this whirler, another kind comprises low-pressure turbine, they are connected with each other by mode recited above, and its structure generally all will make when carrying out maintenance work whirler equipment is disassembled and it is placed into the position of this equipment being carried out maintenance work from the one end.Work such as this dismounting is consuming time and also is that expense is very high, and only is for whirler equipment is keeped in repair, the replacing of part and it is dismantled and then install to need some days this situations be much.Because on the whirler that is connected to other by this way in the whirler and increase, i.e. dismounting can not be carried out this dismounting from its outer end to this problem through regular meeting, but must carry out from the end of another whirler.
The purpose of this invention is to provide a kind of device that is used for whirler equipment, this device comprises a section that is easy to dismantle, and its shell does not have the part that is easy to corrode when running into the flow of heated fluid that contains grit simultaneously.
This purpose is to obtain by the device of top described type, it is characterized in that: this shell comprises one first tubular portion and one second tubular portion, this first tubular portion covers on this second portion at least in part, and this first portion removably settles on the second portion in the axial direction, makes that this inner casing can be approaching so that this inner casing can be disassembled from the part that connects tubular wall thereon from the outside.
According to the most preferred embodiment of device of the present invention, this inner casing comprises a part, and the length of this part is transformable on the axial direction of this shell.
Whereby, can be by after this first part of case shell be removed from this second portion by this way, promptly make this inner casing can from the outside near and can disassemble from the part of the tubular wall that is connected thereto after, shorten the length of this inner casing by the part of variable compression length in the axial direction.Whereby, can be near the radially spigot that the other end of this inner casing and the corresponding part of the tubular wall that is connected thereto are coupled together.The part of this variable-length also allows inner casing axial elongation and shortening respectively when the distance between the whirler changes because of the temperature effect between them in operation process.
According to another embodiment of device of the present invention, this device comprises that is used to make the tensioning means that the variable-length part withdraws on the axial direction of this section.
Whereby, vertical shortening of this inner casing can be convenient widely, and operation only needs outside device few or that do not need other for this reason simultaneously.
Another embodiment according to device of the present invention; this device comprises the insulation material layer of one deck between this inner casing and this shell; this inner casing is settled and is born the suffered mechanical load major component of this wall section, and this shell outside forms the heat-resisting protective shell of this wall section.
Whereby, the influence that the part of the major component of bearing mechanical load of dismountable wall section just is not heated, it can also keep certain rigid and can play its supporting functions when this shell flows when hot gas whereby.
Another most preferred embodiment according to device of the present invention, this tubular wall forms an inwall, this inwall is surrounded by an outside tubular wall, and is provided with an annular channel so that fluid is transported to one second whirler from first whirler between these walls.
Another purpose provides a kind of whirler equipment, and this equipment is by its structure, makes in order to detect this equipment, and whirler is carried out maintenance work and changes its part and operating time of dismantling and ressembling this equipment shortens and alleviated working strength.
This purpose is that the whirler equipment of initial defined type is realized, this equipment is characterised in that: this pipeline comprises a wall section of intermediate portion He this inwall of this outer wall, and this wall section is removably to settle so that can be near the part that is placed in this whirler through this pipeline.
Whereby, just or else need only to dismantle, promptly dismantle from an end of whirler equipment from a direction.
Like this, when carrying out maintenance work, can save the operating time widely, the shared bearing space that for example is used for whirler can be more prone near and the maintenance of bearing be convenient to carry out.Suppose that this movable wall section and this detachable intermediate portion have enough big size, can also obtain the turbo machine package of integral body very simply, this package can be used as a part and disassembles from each whirler respectively and mention.And, near and safeguard that the possibility of for example rotating guide plate in the whirler has also increased.
According to a most preferred embodiment of whirler equipment of the present invention, parts comprise the turbine of whirler, and one in the whirler is high-pressure unit, and another is a low-pressure turbine.
Another purpose provides a kind of method that is used to dismantle a wall section of tubular wall, this wall section comprises an inner casing and a shell, this shell comprises one first tubular portion and one second tubular portion, this first portion covers this second portion at least, and described method makes that simplified control and workload and spent time are all less.
This purpose realizes that by this method this method comprises the following steps:
This first portion moved axially on this second portion so that can be near this inner casing, and then with this inner casing from the part of the tubular wall that is connected thereto from disassembling.
According to a most preferred embodiment of this method, the step of dismantling this inner casing comprises the following steps:
Unclamp first joint between the part of end of this inner casing and the tubular wall that is connected thereto:
On the inner casing axial direction, shorten this inner casing by a contractibility; Second joint between the part of the tubular wall that unclamps the other end of this inner casing and be connected thereto.
Whereby, the dismounting that just can finish this inner casing and this shell does not comprise having any axial separation face that is used to dismantle the clamping bolt joint of purpose simultaneously.And the shortening of the length by this inner casing just can be near the joint of the radial inward between the counterpart of end of this inner casing and the tubular wall that is connected thereto.
The most preferred embodiment of the method according to this invention, the method is applied in such whirler equipment, wherein this tubular wall forms an interior tubular wall, should surround by an outer tubular wall by interior tubular wall, and these of walls formation have one and are used for fluid flows to the annular channel of one second whirler from one first whirler pipeline, should be earlier before this method is carried out the counterpart of this outer tubular wall be disassembled, this part is between these whirlers.
Can recognize device of the present invention, the feature and advantage of other of whirler equipment and method in explanation below and other the dependent claims.
Below, by way of example the embodiment of device of the present invention is described in detail with reference to the accompanying drawings, wherein:
Fig. 1 is the schematic representation of whirler equipment of the present invention;
Fig. 2 is the axial sectional view of device of the present invention;
Fig. 3 is the enlarged detailed of device shown in Figure 2;
Fig. 4 is the end elevation of detail drawing shown in Figure 3.
Fig. 1 schematically shows a whirler equipment, this equipment comprises one first whirler 1 and one second whirler 2, those whirlers are connected with each other through a pipeline 3 respectively, and this pipeline 3 self comprises an outer tubular wall 4 and interior tubular wall 5 and settles to transport fluid into this second whirler 2 from this first whirler 1.Whereby, this first whirler 1 comprises a high-pressure turbine 6, and this second whirler 2 comprises a low-pressure turbine 7.
This pipeline 3 comprises an intermediate portion 14 of this outer wall 4 and a wall section 15 of this inwall 5, and they are removably being settled so that can be near the parts that are placed in the whirler 1,2 through pipeline 3.This intermediate portion 14 and this wall section 15 illustrate with axial sectional view in Fig. 2.The fluid that the structure of described part and wall section is specially adapted to flow through pipeline 3 is a kind of situation that contains the hot gas of grit.
Therefore tubular wall, particularly its movable wall section in being somebody's turn to do comprise three layers that are made of 16, one inner casings 17 of a shell and the insulation material layer between them 18.This shell 16 be form with the material of heat-resisting and wear-corrosion resistance and settle this mesosphere 18 and inner casing 17 do not contacted with the hot gas that flows in the annular channel 19 that forms between outer wall 4 and inwall 5.This inner casing 17 is placed the major component of bearing the suffered mechanical load of this wall section 15.
This outer tubular wall 4, this intermediate portion 14 particularly, have with interior tubular wall 5 same principles structure, its inner casing 20 is to be made by a kind of material heat-resisting, wear-corrosion resistance whereby, its mesosphere 21 is made by thermoinsulation material, and its shell 22 is settled and born the particularly major component of the suffered mechanical load of intermediate portion 14 of this outer tubular wall 14.
This intermediate portion 14 and this wall section 15 are extended along the whole basically length of this pipeline 3.The pipe section 41,42 that they are connected thereto so in fact can be made of the axial ledge with corresponding whirler 1,2 separation.Particularly, when the length of wall section 15 and this intermediate portion 14 is quite big, importantly to make it bear the part of the major component of mechanical load, be the inner casing 17 of wall section 15 and the shell 22 of intermediate portion 14, the temperature that is run into should be not high to making them lose their bearing value, can cause pipeline to hang too much 3 times like this, cause described pipeline permanent deformation, cause dismounting problem etc.This above-mentioned principle of three layers can be avoided this problem effectively.
A difference between this intermediate portion 14 and the wall section 15 is that the latter is without any the vertical separation face that has the screwed joint that belongs to the shell place.Its reason as top explained, promptly excessive because of the influence of the hot gas that contains grit and in this passage 19, flow at shell 16 places at the stress on this screwed joint.Joint can wear and tear by corrosion simply.
For energy removal wall section 15, its shell 16 comprises one first tubular portion 23 and one second tubular portion 24, and this first portion covers second portion 24 at the zone line of this wall section 15 at least in part.At the one end thereof place, first portion 23 is by a joint, and preferably welded joint is connected on the part of this pipeline 3.This first portion 23 and this second portion 24 are conical slightly, and when this first portion 23 in the pipe section office that is connected thereto when its joint disassembles afterwards, these first portion's 23 telescopicallies can be shifted onto on this second portion 24.For this reason, this first portion 23 comprises a ring 25.And this second portion 24 is that a batter post 26 is connected on this inner casing 17 by a link herein.
This inner casing 17 comprises a part 27, and the length of this part is variable on the axial direction of this inner casing.This part 27 comprises a bellows segment 28, and this bellows segment is extended around the inner periphery of this inner casing 17 and had pressure and absorbs sealing function.In order to compress this part 27 in the axial direction, be mounted with a tensioning means 30.This tensioning means comprises a screw device 31, and this device is settled an inner casing part 35 exerted one's influence and made the latter to move with respect to a bridge 32 in the axial direction.This bridge 32 is formed by a thin plate, and the end of this thin plate in its end is connected on this inner casing and at its axial opposite end place and removably is inserted in the depressed part 33 of this inner casing 17.In fact, therefore this inner casing 17 is divided into two parts 34,35, and these two-part can move axially mutually.In fact this bridge 32 can constitute the part of one of these parts, but in the example shown, it is formed by the tubulose thin plate, and this tubulose thin plate is parallel to this inner casing and extends and be connected to by a welded joint of for example locating in one of its end on one of the part 34 of this inner casing.This bellows segment 28 is installed to respectively on two parts 34,35 at its opposed axial end place.Preferably, distribute along the outer periphery of this inner casing 16 to settle a plurality of screw devices 31 and be positioned to and on its second portion 24, be easy to when mobile approaching when this first part of case shell 23.The screw of this screw device 31 settles after installation by this way the locked position from them to unclamp, and makes them can not prevent this part 27 and bellows segment 28 moving axially in operating process.
At the place, end that has exposed when mobile on this second portion 24 when this first portion 23 of this inner casing 17, this inner casing 17 comprises a joint 38, and in this joint, it is connected on the part 41 of connection tubular wall thereon.This joint 38 is made of a screwed joint, and this screwed joint can unclamp by simple method.Then, can be compressed in adjustable length part 27 on the axial direction of this section 15 by tensioning means 30, whereby just can be near the joint 39 of the inboard at the axial opposite end place that be arranged on this inner casing 17.And this inner casing 17 is divided into two by two sections 17a and 17b that can approaching joint couples together from the outside, make in such cases can by separate and take off in these two sections one in other mode near this joint 39.When this joint 39, screwed joint preferably, when the part 47 of the tubular wall 5 that is connected thereto disassembled, whole wall section 15 just can be mentioned from its position between whirler 1,2.Certainly, all these measures hint that all this intermediate portion 14 has disassembled earlier.But doing like this is that mode with a kind of routine is carried out, and therefore is not described in detail at this.
As can be seen from Figure 4, this inner casing is the supporting member 40 that how to be provided with that radially outward stretches out and to support this shell 16 at their place, outer end.Whereby, just improved the stability of wall section 15.
Certainly, for the people who is familiar with prior art, the numerous variations of described device and whirler equipment example and modification are conspicuous, thereby do not depart from the scope of the present invention.
Claims (16)
1. device that is used for whirler equipment, this device comprises the movable wall section (15) of a tubular wall (5), this wall section comprises an inner casing (17) and a shell (16), it is characterized in that: this shell (16) comprises one first and one second tubular portion (23,24), this first portion (23) covers this second portion (24) at least partly, this first portion (23) axially movably is being placed on this second portion (24) by this way, make this inner casing (17) can be from the outside near so that this inner casing (17) can be disassembled on the part (41,42) of the tubular wall (5) that is connected thereto.
2. device as claimed in claim 1 is characterized in that: this inner casing (17) comprises that its length is transformable part (27) on its axial direction.
3. device as claimed in claim 2 is characterized in that: this device comprises that is used to make its length tensioning means (30) that transformable part (27) shortens on the axial direction of this wall section (15).
4. as each described device among the claim 1-3, it is characterized in that: this device comprises an insulation material layer (18) between this inner casing (17) and this shell (16).
5. as each described device among the claim 1-4, it is characterized in that: this inner casing (17) is settled and is born the major component that this wall section (15) goes up suffered mechanical load.
6. as each described device among the claim 1-5, it is characterized in that: the heat-resisting protective shell that has formed this wall section (15) on the outside of this shell (16).
7. as each described device among the claim 1-6, it is characterized in that: this tubular wall (5) forms an inwall, this inwall is surrounded by an outer tubular wall (4), and an annular channel (19) is set, between these walls so that direct fluid flows to one second whirler (2) from one first whirler (1).
8. whirler equipment, this equipment comprises at least two whirlers (1 that are connected with each other through a pipeline (3), 2), this pipeline comprises an outer tubular wall (4) and an interior tubular wall (5) and settles a kind of fluid from this whirler (1,2) one (1) in is transported to another (2), it is characterized in that: this pipeline (3) comprises the wall section (15) of intermediate portion (14) and this inwall (5) of this outer wall (4), they are removably being settled so that can be near the parts (6-13) that are placed in this whirler (1,2) through this pipeline (3).
9. whirler equipment as claimed in claim 8 is characterized in that: those parts (6-13) comprise the turbine (6,7) of whirler (1,2).
10. as each described whirler equipment in claim 8 and 9, it is characterized in that: one (1) in those whirlers (1,2) comprises a high-pressure turbine (6), and another whirler (2) comprises a low-pressure turbine (7).
11. as each described whirler equipment among the claim 8-10, it is characterized in that: it comprises as each described device among the claim 1-7.
12. method that is used to dismantle the wall section (15) of tubular wall (5), this wall section (15) comprises an inner casing (17) and a shell (16), and this shell (16) comprises one first tubular portion (23) and first second portion (24), this first portion (23) covers this second portion (24) at least partly, it is characterized in that: this method comprises the following steps:
This first portion (23) is moved axially so that can be on this second portion (24) near this inner casing (17);
Then this inner casing (17) is disassembled on the part (41,42) of the tubular wall (5) that is connected thereto.
13. method as claimed in claim 12 is characterized in that: it is that a part (42) from the tubular wall (5) that is connected thereto disassembles that this first portion (23) begins.
14. as method as described in claim 12 or 13, it is characterized in that: the step of dismantling this inner casing (17) also comprises the following steps:
To disassemble between first joint (38) between the part (42) an of end of this inner casing and this tubular wall (5) that is connected thereto;
On its axial direction, shorten this inner casing (17) by a contractibility;
To disassemble between second joint (39) between the part (41) of the other end of this inner casing (17) and the tubular wall (5) that is connected thereto.
15. method as claimed in claim 14 is characterized in that: this contractibility comprises the actuator of a tensioning means (30) so that compress a part (27) of this inner casing (17), and described part is adjustable length on the axial direction of this inner casing.
16. as each described method among the claim 12-15, it is characterized in that: this method can be applicable in a kind of whirler equipment, wherein this tubular wall (5) forms an interior tubular wall, should radially surround by an outer tubular wall (4) by interior tubular wall, they form a pipeline (3) that has an annular channel (19) and are used to make fluid to flow to second whirler (2) from first whirler (1), and before carrying out, this method will disassemble between the intermediate portion (14) of the correspondence of this outer tubular wall (4) between the whirler (1,2) earlier.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9700987A SE508861C2 (en) | 1997-03-18 | 1997-03-18 | Device for a rotor machine plant, rotor machine plant and method for dismantling a section of a tubular wall |
| SE9700987 | 1997-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1193709A true CN1193709A (en) | 1998-09-23 |
Family
ID=20406211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97113275A Pending CN1193709A (en) | 1997-03-18 | 1997-06-13 | DEvice for rotary machine plant, rotary machine plant and method of demounting section of tubular wall |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4137215B2 (en) |
| CN (1) | CN1193709A (en) |
| SE (1) | SE508861C2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444620B1 (en) * | 1999-05-13 | 2004-08-18 | 현대중공업 주식회사 | Steam Turbine Exhaust Expansion joint |
| GB0123802D0 (en) | 2001-10-04 | 2001-11-21 | Rotech Holdings Ltd | Power generator and turbine unit |
| KR102598979B1 (en) * | 2018-08-30 | 2023-11-03 | 한화파워시스템 주식회사 | casing with insulation pad inside |
-
1997
- 1997-03-18 SE SE9700987A patent/SE508861C2/en not_active IP Right Cessation
- 1997-06-13 CN CN97113275A patent/CN1193709A/en active Pending
-
1998
- 1998-03-18 JP JP06867098A patent/JP4137215B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| SE508861C2 (en) | 1998-11-09 |
| SE9700987D0 (en) | 1997-03-18 |
| JPH10266809A (en) | 1998-10-06 |
| JP4137215B2 (en) | 2008-08-20 |
| SE9700987L (en) | 1998-09-19 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |