CN218844398U - Steam turbine shell assembly - Google Patents
Steam turbine shell assembly Download PDFInfo
- Publication number
- CN218844398U CN218844398U CN202223259276.0U CN202223259276U CN218844398U CN 218844398 U CN218844398 U CN 218844398U CN 202223259276 U CN202223259276 U CN 202223259276U CN 218844398 U CN218844398 U CN 218844398U
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- casing
- top surface
- grooves
- sealing
- sides
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- 238000007789 sealing Methods 0.000 claims abstract description 76
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gasket Seals (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a steam turbine casing subassembly, including casing, last casing down, casing top surface both sides are a plurality of spacing posts of rigid coupling respectively down, spacing post top surface rigid coupling screw thread post, recess one is seted up respectively to casing top surface both sides down, recess three is seted up to recess one bottom surface, casing top surface both sides rigid coupling respectively down seal up pad one, seal up pad two. The utility model discloses a set up recess two in last casing bottom surface, sealing strip one, sealing strip two, because sealing strip one, two self elastic deformation's of sealing strip characteristic, can be so that go up the casing with down the body coupling, it receives spacing and action of gravity to go up the casing, sealing strip one, sealing strip two tightly blocks into recess one, recess three, and the casing with sealed the pad one, the cooperation of sealed pad two is connected, can reduce the clearance of its contact surface to a certain extent, make under the screwed post, the nut, the screw hole, the thread groove, fastening bolt's zonulae occludens effect, improve the inside leakproofness of steam turbine housing.
Description
Technical Field
The utility model relates to a steam turbine technical field specifically is a steam turbine housing subassembly.
Background
The steam turbine is also called a steam turbine engine, is a rotary steam power device, is widely applied to thermal power plants, metallurgical industry, chemical industry and ship and warship machinery, and has the working principle that high-temperature and high-pressure steam enters a cylinder body of the steam turbine from a steam inlet of a cylinder, passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates, and the mechanical energy of the steam is converted into the kinetic energy of the rotor.
However, when the conventional casing assembly is connected, a gap is easily formed between the contact surfaces of the two casing halves, which affects the sealing performance inside the turbine casing.
We propose a steam turbine casing assembly for this purpose which addresses the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steam turbine shell subassembly to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a steam turbine shell assembly comprises a lower shell and an upper shell, wherein two sides of the top surface of the lower shell are fixedly connected with a plurality of limiting columns respectively, the top surfaces of the limiting columns are fixedly connected with threaded columns, two sides of the top surface of the lower shell are provided with first grooves respectively, the bottom surfaces of the first grooves are provided with third grooves, two sides of the top surface of the lower shell are fixedly connected with first sealing gaskets and second sealing gaskets respectively, the top surface of the first sealing gasket is provided with a plurality of first through holes, the top surface of the first sealing gasket is provided with a plurality of second through holes, two sides of the bottom surface of the lower shell are provided with second grooves respectively, first sealing strips are fixedly connected in the second grooves, the first bottom surfaces of the first sealing strips are fixedly connected with second sealing strips, the second sealing strips are connected with the third grooves, the first sealing strips are connected with the first grooves in a clamping mode, and the first sealing strips are positioned between the first sealing gaskets and the second sealing strips;
the bottom surface of the upper shell is in contact with the top surfaces of the first sealing gasket and the second sealing gasket, a plurality of limiting holes corresponding to the limiting columns are formed in two sides of the bottom of the upper shell respectively, the limiting holes penetrate through the threaded columns and the limiting columns, and the threaded columns are in threaded connection with nuts.
Preferably, the vertical cross section of the first groove and the vertical cross section of the second groove are arc-shaped, the vertical cross section of the first sealing strip is circular, the aperture size of the horizontal cross section of the limiting column is the same as that of the horizontal cross section of the limiting hole, and the threaded column is exposed outside the upper shell.
Preferably, a plurality of thread grooves are formed in two sides of the top surface of the lower shell respectively, a plurality of threaded holes corresponding to the thread grooves are formed in two sides of the bottom of the upper shell respectively, and the thread grooves and the threaded holes are connected with fastening bolts in a threaded mode.
Preferably, the limiting column penetrates through the second through hole, and the fastening bolt penetrates through the first through hole.
Preferably, the thread groove and the thread hole are communicated with each other.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up recess two in last casing bottom surface, sealing strip one, sealing strip two, because sealing strip one, two self elastic deformation's of sealing strip characteristic, can be so that go up the casing with down the body coupling, it receives spacing and action of gravity to go up the casing, sealing strip one, sealing strip two tightly blocks into recess one, recess three, and the casing with sealed the pad one, the cooperation of sealed pad two is connected, can reduce the clearance of its contact surface to a certain extent, make under the screwed post, the nut, the screw hole, the thread groove, fastening bolt's zonulae occludens effect, improve the inside leakproofness of steam turbine housing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
fig. 3 is the schematic view of the local structure splitting structure of the present invention.
In the figure: 1. a lower housing; 11. a thread groove; 12. a first groove; 13. a third groove; 14. a limiting post; 141. a threaded post; 142. a nut; 2. an upper housing; 21. a limiting hole; 22. a threaded hole; 23. a second groove; 3. fastening a bolt; 4. a first sealing strip; 41. a second sealing strip; 5. a first sealing gasket; 51. a first through hole; 52. a second through hole; 6. and a second sealing gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to fig. 1-3, in order to illustrate the first embodiment of the present invention, the present invention provides a technical solution: a steam turbine shell assembly comprises a lower shell 1 and an upper shell 2, wherein two sides of the top surface of the lower shell 1 are fixedly connected with a plurality of limiting columns 14 respectively, the top surfaces of the limiting columns 14 are fixedly connected with threaded columns 141, two sides of the top surface of the lower shell 1 are provided with first grooves 12 respectively, the bottom surfaces of the first grooves 12 are provided with third grooves 13, two sides of the top surface of the lower shell 1 are fixedly connected with a first sealing gasket 5 and a second sealing gasket 6 respectively, the top surface of the first sealing gasket 5 is provided with a plurality of first through holes 51, the top surface of the first sealing gasket 5 is provided with a plurality of second through holes 52, two sides of the bottom surface of the lower shell 1 are provided with second grooves 23 respectively, the first sealing strips 4 are fixedly connected in the second grooves 23, the first sealing strips 4 are fixedly connected with second sealing strips 41, the second sealing strips 41 are clamped in the third grooves 13, the first sealing strips 4 are clamped in the first grooves 12, the first sealing strips 4 are positioned between the first sealing strips 5 and the second sealing gaskets 6, the sealing strips 41 are matched with the first sealing gaskets 5, the second sealing strips 6, and the first sealing strips 5, the second sealing strips 6 are contacted with the upper shell 2, and the sealing strips, so that the gaps between the contact surfaces of the shell assemblies can be effectively reduced;
go up 2 bottom surfaces of casing contact sealed pad one 5, sealed pad two 6 top surfaces, go up 2 bottom both sides of casing and set up a plurality of spacing holes 21 corresponding with spacing post 14 respectively, spacing hole 21 passes screw thread post 141, spacing post 14, and screw thread post 141 threaded connection nut 142 sets up the mounted position that spacing post 14 can confirm casing 2, avoids the position skew to take place.
Example 2:
referring to fig. 1-3, in order to illustrate a second embodiment of the present invention, the vertical cross-sectional shapes of the first groove 12 and the second groove 23 are circular arc, the vertical cross-sectional shape of the first sealing strip 4 is circular, the aperture of the horizontal cross-section of the limiting post 14 is the same as the aperture of the horizontal cross-section of the limiting hole 21, and the threaded post 141 is exposed outside the upper housing 2.
A plurality of thread grooves 11 are respectively formed in two sides of the top surface of the lower shell 1, a plurality of thread holes 22 corresponding to the thread grooves 11 are respectively formed in two sides of the bottom of the upper shell 2, the thread grooves 11 and the thread holes 22 are connected with fastening bolts 3 in a threaded mode, the nut 142 is arranged in the thread connection threaded column 141 and the fastening bolts 3 are arranged in the thread connection thread grooves 11 and the thread holes 22, the upper shell 2 and the lower shell 1 of the steam turbine shell assembly are convenient to detach and install, and maintenance of internal parts of a steam turbine is facilitated.
The limiting column 14 passes through the second through hole 52, and the fastening bolt 3 passes through the first through hole 51.
The thread groove 11 and the threaded hole 22 communicate with each other.
Example 3:
please refer to fig. 1-3, for the third embodiment of the present invention, this embodiment is based on the above two embodiments, the present invention is to make the upper housing 2 correspond to the lower housing 1 through the limiting hole 21, so that the limiting hole 21 passes through the threaded post 141, the limiting post 14, so that the first sealing strip 4 and the second sealing strip 41 disposed at the bottom of the upper housing 2 receive the gravity of the upper housing 2 and the factors of limiting the position, in addition, the first sealing strip 4 and the second sealing strip 41 have elastic deformation characteristics, so that the first sealing strip 4 and the second sealing strip 41 can be tightly clamped into the first groove 12 and the third groove 13, and also are simultaneously matched with the first sealing pad 5 and the second sealing pad 6, the upper housing 2 interacts with the first sealing pad 5 and the second sealing pad 6, and can reduce the gap of the contact surface to a certain extent, the threaded post 141 is exposed outside the upper housing 2, the threaded post 141 is tightly connected with the threaded post 141 through the nut 142, the fastening bolt 3 and the threaded tightly connected threaded groove 11 and the threaded hole 22, and under the tight connection effect, the sealing performance inside of the turbine can be improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A steam turbine shell assembly, includes casing (1), upper casing (2) down, its characterized in that: the sealing structure is characterized in that two sides of the top surface of the lower shell (1) are fixedly connected with a plurality of limiting columns (14) respectively, the top surfaces of the limiting columns (14) are fixedly connected with threaded columns (141), two sides of the top surface of the lower shell (1) are provided with first grooves (12) respectively, three grooves (13) are formed in the bottom surfaces of the first grooves (12), two sides of the top surface of the lower shell (1) are fixedly connected with a first sealing gasket (5) and a second sealing gasket (6) respectively, the top surface of the first sealing gasket (5) is provided with a plurality of first through holes (51), the top surface of the first sealing gasket (5) is provided with a plurality of second through holes (52), two sides of the bottom surface of the lower shell (1) are provided with second grooves (23) respectively, first sealing strips (4) are fixedly connected in the second grooves (23), the bottom surfaces of the first sealing strips (4) are fixedly connected with second sealing strips (41), the second sealing strips (41) are clamped with the third grooves (13), the first sealing strips (4) are clamped with the first grooves (12), and the first sealing strips (4) are located between the first sealing gaskets (5) and the second sealing strips (6);
go up casing (2) bottom surface contact sealed pad (5), sealed pad two (6) top surface, go up casing (2) bottom both sides and set up a plurality of spacing holes (21) corresponding with spacing post (14) respectively, spacing hole (21) pass screw thread post (141), spacing post (14), screw thread post (141) threaded connection nut (142).
2. The steam turbine casing assembly of claim 1, wherein: the vertical cross section of the first groove (12) and the second groove (23) is arc-shaped, the vertical cross section of the first sealing strip (4) is circular, the aperture of the horizontal cross section of the limiting column (14) is the same as that of the horizontal cross section of the limiting hole (21), and the threaded column (141) is exposed on the outer side of the upper shell (2).
3. The steam turbine casing assembly of claim 1, wherein: a plurality of thread grooves (11) are formed in two sides of the top surface of the lower shell (1) respectively, a plurality of threaded holes (22) corresponding to the thread grooves (11) are formed in two sides of the bottom of the upper shell (2) respectively, and the thread grooves (11) and the threaded holes (22) are connected with fastening bolts (3) in a threaded mode.
4. The steam turbine casing assembly of claim 3, wherein: the limiting column (14) penetrates through the second through hole (52), and the fastening bolt (3) penetrates through the first through hole (51).
5. The steam turbine casing assembly of claim 3, wherein: the thread groove (11) and the threaded hole (22) are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223259276.0U CN218844398U (en) | 2022-12-06 | 2022-12-06 | Steam turbine shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223259276.0U CN218844398U (en) | 2022-12-06 | 2022-12-06 | Steam turbine shell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844398U true CN218844398U (en) | 2023-04-11 |
Family
ID=87303736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223259276.0U Active CN218844398U (en) | 2022-12-06 | 2022-12-06 | Steam turbine shell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844398U (en) |
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2022
- 2022-12-06 CN CN202223259276.0U patent/CN218844398U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUNAN SANCHUANG FUTAI ENVIRONMENTAL PROTECTION MATERIAL CO.,LTD. Assignor: HUNAN SANCHUANG FUTAI EQUIPMENT MANAGEMENT Co.,Ltd. Contract record no.: X2024980008914 Denomination of utility model: A turbine shell component Granted publication date: 20230411 License type: Common License Record date: 20240709 |
|
| EE01 | Entry into force of recordation of patent licensing contract |