CN114135348B - Adjustable integrated type holding ring for steam turbine - Google Patents
Adjustable integrated type holding ring for steam turbine Download PDFInfo
- Publication number
- CN114135348B CN114135348B CN202111332620.1A CN202111332620A CN114135348B CN 114135348 B CN114135348 B CN 114135348B CN 202111332620 A CN202111332620 A CN 202111332620A CN 114135348 B CN114135348 B CN 114135348B
- Authority
- CN
- China
- Prior art keywords
- holding ring
- ring body
- lower holding
- steam turbine
- steam
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000005121 nitriding Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007142 ring opening reaction Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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
-
- 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
- F01D25/246—Fastening of diaphragms or stator-rings
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to an adjustable integrated holding ring for a steam turbine, which is arranged in the steam turbine and comprises an upper holding ring body and a lower holding ring body which are arranged in a split manner, wherein an inner cavity which is radially enlarged from one end to the other end is formed in the upper holding ring body and the lower holding ring body after being buckled; the steam turbine stator vane assembly further comprises multistage stator vanes and a plurality of groups of steam seal vanes which are inserted in the inner cavity along the axial direction of the inner cavity, a positioning assembly for quickly positioning after the upper holding ring body and the lower holding ring body are buckled, and a locking assembly for locking the upper holding ring body and the lower holding ring body after the upper holding ring body and the lower holding ring body are positioned, wherein the stator vanes and the steam seal vanes of each group are installed in a staggered manner, and the steam turbine stator vane assembly further comprises an adjusting assembly which is installed on the lower holding ring body and is convenient to align with the center of the steam turbine. The invention can integrate the multistage stationary blades, so that the product structure is compact, the center alignment operation can be simplified through the arrangement of the adjusting component, the multistage stationary blades are installed by inserting, the installation influence caused by welding deformation can be avoided, and the maintenance and the replacement of the stationary blades are convenient.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to an adjustable integrated holding ring for a steam turbine.
Background
At present, a series of axially arranged stage separators are adopted in a domestic turbine for a high-rotation-speed power station, each stage of separator is welded and provided with a structure of one-stage stationary blades, the structure of independently arranging the multistage separators not only can increase the length of a shaft system to cause the outline dimension of the turbine to be larger, but also can cause the pressure difference of the front and rear parts of the separators to be larger in the working process, so that the separators are stressed and deformed to influence the use, and the centering is complicated because of repeated adjustment; and the stator blade adopts the welding mode to install, not only can lead to the stator blade to warp and cause the processing degree of difficulty, still be unfavorable for the maintenance of stator blade to change.
Disclosure of Invention
The present invention provides an adjustable integrated holding ring for a steam turbine, which can at least solve one of the aforementioned problems in the prior art.
The technical scheme adopted by the invention is as follows: an adjustable integrated holding ring for a steam turbine is arranged in the steam turbine and comprises an upper holding ring body and a lower holding ring body which are arranged in a split mode, wherein an inner cavity which is radially enlarged from one end to the other end is formed in the upper holding ring body and the lower holding ring body after being buckled; the steam turbine is characterized by further comprising multiple stages of static blades and multiple groups of steam sealing blades which are inserted into the inner cavity along the axial direction of the inner cavity, a positioning assembly for quickly positioning after the upper holding ring body is buckled with the lower holding ring body, and a locking assembly for locking the upper holding ring body and the lower holding ring body after the lower holding ring body is buckled with the lower holding ring body, wherein the static blades and the steam sealing blades of each stage are installed in a staggered manner, and the adjustable integrated holding ring for the steam turbine further comprises an adjusting assembly which is installed on the lower holding ring body and is convenient to align with the center of the steam turbine.
As a further limitation to the above technical solution, the adjusting assembly includes a horizontal adjusting assembly installed at the bottom of the lower holding ring body, and vertical adjusting assemblies installed at two sides of the lower holding ring body, where the horizontal adjusting assembly and each vertical adjusting assembly include a washer with a nitrided layer formed by nitriding the outer surface, a fastening screw fixing the washer and the lower holding ring body, and a gasket sleeved on the fastening screw and installed between the washer and the lower holding ring body, and the thickness of the nitrided layer is 0.2-0.35 mm.
As a further limitation to the above technical scheme, two groups of positioning holes are correspondingly formed in two sides of the upper holding ring body and the lower holding ring body respectively, the positioning assembly comprises two groups of taper pins penetrating through the two groups of positioning holes respectively, the taper of the taper pins is 1:18-1:21, a plurality of groups of locking holes which are distributed at intervals are formed in two sides of the upper holding ring body and the lower holding ring body respectively, and the locking assembly comprises locking bolts screwed in the groups of locking holes at corresponding positions respectively.
As a further limitation to the above technical solution, the smaller diameter end of the inner cavity is a high pressure steam inlet end, and sealing teeth are respectively installed on the axial direction and the radial direction of the upper holding ring body and the lower holding ring body of the high pressure steam inlet end.
As a further limitation to the above technical scheme, adjacent to the high-pressure steam inlet end, mounting grooves are formed in the inner peripheral surfaces of the upper holding ring body and the lower holding ring body, and a steam blocking ring is mounted in the mounting groove.
As a further limitation to the above technical solution, the choke ring is separately disposed and fixed in the lower holding ring body and the upper holding ring body via set screws, and the choke ring is installed in the lower holding ring body with a length greater than that of the choke ring installed in the upper holding ring body.
As a further limitation to the above technical solution, the steam-blocking ring includes a rectangular water-draining groove and two inner notches formed on two sides of the steam-blocking ring, the water-draining groove is opened corresponding to the position of the perpendicular bisector of the lower holding ring body.
As a further limitation to the above technical solution, the diameter of one end of the choke ring mounted in the mounting groove is larger than the diameter of the other opposite end thereof.
As a further limitation to the above technical solution, the stator blades are fourteen stages, each of the stator blades includes a low shroud and a high shroud disposed adjacent to the low shroud, and the last six stages of stator blades, which are far from one end of the high pressure steam inlet end, further include inclined surfaces disposed adjacent to the high shroud.
As a further limitation of the above technical solution, the angle of the inclined plane is 17 0 ～19 0 。
According to the adjustable integrated holding ring for the steam turbine, the upper holding ring body and the lower holding ring body which are arranged in a split mode, and the multistage stationary blades and the multiple groups of steam seal blades which are inserted into the inner cavity along the axial direction of the inner cavity formed by encircling the upper holding ring body and the lower holding ring body can integrate the multistage stationary blades on the buckled upper holding ring body and lower holding ring body, so that the product structure is compact, and the center alignment operation can be simplified through the arrangement of an adjusting component; the multistage stationary blade adopts cartridge installation, can avoid welding deformation to influence the installation, and the maintenance of the stationary blade of being convenient for is changed, and has better effect.
Drawings
FIG. 1 is a schematic view of an adjustable integrated retaining ring for a steam turbine according to the present invention;
FIG. 2 is a front view of an adjustable integrated retainer ring for a steam turbine in accordance with the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a B-B cross-sectional view of FIG. 3;
FIG. 5 is a C-C cross-sectional view of FIG. 3;
FIG. 6 is a D-D sectional view of FIG. 4;
FIG. 7 is a sectional view taken along E-E of FIG. 4;
FIG. 8 is an enlarged view of FIG. 4 at F;
fig. 9 is an enlarged view of G of fig. 3;
FIG. 10 is an enlarged view of FIG. 3 at H;
FIG. 11 is a schematic view of an assembled structure of an adjustable integrated retainer ring for a steam turbine according to the present invention;
FIG. 12 is a schematic view of another angular assembly configuration of an adjustable integrated retaining ring for a steam turbine according to the present invention;
fig. 13 is an enlarged view at I of fig. 12.
In the figure:
1-upper holding ring body, 2-lower holding ring body, 3-inner cavity, 4-stationary blade, 41-low shroud, 42-high shroud, 43-inclined plane, 44-locating pin, 441-inclined notch, 5-steam seal piece, 6-locating component, 7-locking component, 81-horizontal adjusting component, 82-vertical adjusting component, 831-gasket, 832-fastening screw, 833-gasket, 9-sealing tooth, 10-choke ring, 101-drain groove, 102-inner notch, 11-hanging ring opening, 12-boss, 13-rotor, 131-rotor moving blade, 132-rotor steam seal piece, 14-high pressure cylinder.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
Examples
The adjustable integrated holding ring for the steam turbine is shown in fig. 1 to 8, and is installed in the steam turbine, and comprises an upper holding ring body 1 and a lower holding ring body 2 which are arranged in a split mode, an inner cavity 3 which is gradually enlarged from one end to the other end in the radial direction is formed in the inner periphery of the buckled upper holding ring body 1 and the lower holding ring body 2, a high-pressure steam inlet end is arranged at the smaller end of the inner cavity 3, a low-pressure steam outlet end is arranged at the larger end of the inner cavity 3, a multi-stage stationary blade 4 and a plurality of groups of steam sealing pieces 5 which are inserted in the inner cavity 3 along the axial direction of the inner cavity 3, a positioning assembly 6 for quickly positioning the buckled upper holding ring body 1 and the lower holding ring body 2 and a locking assembly 7 for locking the upper holding ring body and the lower holding ring body after positioning, the stationary blade 4 and the steam sealing pieces 5 of each group are installed in a staggered mode, and the adjustable integrated holding ring for the steam turbine further comprises an adjusting assembly which is installed in the lower holding ring body 2 and is convenient for centering between the steam turbines.
Specifically, in order to meet the optimization of the expansion work of steam, the three-way flow field design technology is adopted in the embodiment, the taper of the inner cavity 3 is designed to be 1:6, in order to improve the sealing effect and ensure that steam enters the rotor moving blades 131 of the steam turbine to do work, sealing teeth 9 are respectively arranged on the upper holding ring body 1 and the lower holding ring body 2 at the high-pressure steam inlet end in the axial direction and the radial direction as shown in fig. 9, and specifically, the sealing teeth 9 arranged on the upper holding ring body 1 and the lower holding ring body 2 in the radial direction are matched with the outer circle of the shaft shoulder of the rotor 13 of the steam turbine to realize the sealing of the jet nozzle group jet steam, and the sealing teeth 9 arranged on the upper holding ring body 1 and the lower holding ring body 2 in the axial direction are sealed with the end face of the jet nozzle group.
As shown in fig. 1 and 3, adjacent to the high-pressure air inlet end, an installation groove is formed on the inner peripheral surfaces of the upper holding ring body 1 and the lower holding ring body 2, a choke ring 10 is installed in the installation groove to cooperate with the nozzle set to prevent the blowing effect, specifically, the installation groove is a rectangular groove, the choke ring 10 is separately arranged, in order to prevent the falling and rotation of the choke ring 10, the separately arranged choke ring 10 is respectively fixed in the lower holding ring body 2 and the upper holding ring body 1 through a set screw, and the length of the choke ring 10 installed in the lower holding ring body 2 is greater than the length of the choke ring 10 installed in the upper holding ring body 1.
As shown in fig. 1, the choke ring 10 includes a rectangular water drain groove 101 and two inner notches 102 formed on two sides of the choke ring 10, specifically, the water drain groove 101 is opened corresponding to the perpendicular bisector of the lower holding ring body 2, that is, the water drain groove 101 is opened at the lowest position of the choke ring 10, and is in a U-shaped configuration, the lowest bottom end of the water drain groove 101 is aligned with the lowest inner diameter end of the lower holding ring body 2, so as to satisfy the drainage of accumulated water, and the water drain groove is matched with the corresponding position of the nozzle group to form a local protection cover, so as to reduce the blowing loss as much as possible, and the diameter of one end of the choke ring 10 installed in the installation groove is larger than the diameter of the other opposite end of the choke ring.
In this embodiment, for easy lifting, the upper holding ring body 1 and the lower holding ring body 2 are respectively provided with a lifting ring opening 11, the lifting ring openings 11 are respectively arranged at two groups corresponding to the upper holding ring body 1 and the lower holding ring body 2, and for easy axial positioning and radial rough adjustment when the upper holding ring body 1 and the lower holding ring body 2 are installed in the steam turbine, the upper holding ring body 1 and the lower holding ring body 2 are respectively provided with a boss 12.
For forming a through-flow clearance fit with the rotor blade 131 of the steam turbine, the inner cavity 3 is axially inserted into the inner cavity 3, the multi-stage stator blades 4 and the multiple groups of steam seal blades 5 are specifically designed in a reversed mode, the stator blades 4 are fourteen stages as shown in fig. 3 and 10, each stage of stator blades 4 comprises a low shroud 41 and a high shroud 42 arranged adjacent to the low shroud 41 so as to form a through-flow fit with the rotor steam seal 132 of the steam turbine, in the embodiment, the through-flow clearance fit is set to be 0.5mm, so that the stator blades 4 and the rotor steam seal132, the steam leakage between the two stages of the stator blades 4 at the end far away from the high-pressure steam inlet end further comprises an inclined surface 43 arranged adjacent to the Gao Weidai 42, and the angle of the inclined surface 43 is 17 0 ～19 0 In this embodiment, the inclined surface 43 is preferably 18 0 。
In this embodiment, in order to facilitate maintenance and replacement of the stator blade 4, the stator blade 4 is inserted into the inner cavity 3, in order to ensure stability, as shown in fig. 8, the contact positions of the stator blade 4 and the split surfaces of the upper and lower ring-holding bodies 1 and 2 are fixed by the positioning pins 44, and the positioning pins 44 are distributed on two sides of the contact positions of the upper and lower ring-holding bodies 1 and 2 and the stator blade 4, that is, each stage of stator blade 4 needs four positioning pins 44 to be fixed, each positioning pin 44 is arranged by a riding seam, that is, the horizontal center line of each positioning pin 44 is located at the contact position of the root of the stator blade 4 and the corresponding upper or lower ring-holding body 1 and 2, in this embodiment, the positioning pins 44 are press-fitted by interference fit, the interference is 0.02mm, and the exposed end surface of the positioning pins 44 is lower than the split surface of the corresponding upper or lower ring-holding body 1 and 2, so that the positioning pins 44 and the corresponding upper or lower ring-holding body 1 and 2 are stable after being pressed, in this embodiment, the positioning pins 44 are arranged by the positioning pins 441 in fig. 7, and the corresponding notch 1 and the notch 2 can be prevented from falling off by the dual riveting process. In order to ensure close fit of the stator blades 4, the fit clearance of each part after the stator blades 4 are fixed should be smaller than 0.02mm.
In this embodiment, the steam seal plates 5 are all set to have high and low tooth shapes, the roots of the high and low teeth of the steam seal plates 5 are set to be in U-shape compression joint, the body thickness of the high and low teeth is 0.6mm, the tooth tip thickness is 0.3mm, and the through-flow gap is formed with the rotor moving blades 131 of the steam turbine, and the fit gap between the high and low teeth and the corresponding rotor moving blades 131 is set to be 0.5mm to ensure the sealing effect.
As shown in fig. 1 to 6, the adjusting assembly includes a horizontal adjusting assembly 81 installed at the bottom of the lower holding ring body 2, and vertical adjusting assemblies 82 installed at both sides of the lower holding ring body 2, respectively, the horizontal adjusting assembly 81 and each vertical adjusting assembly 82 each include a gasket 831 having a nitrided layer on the outer surface, and a fastening screw 832 for fixing the gasket 831 and the lower holding ring body 2, and further include a spacer 833 installed on the gasket 831 and the lower holding ring body 2 and sleeved on the fastening screw 832, in order to ensure hardness and wear resistance, the thickness of the nitrided layer is 0.2-0.35 mm, preferably 0.3mm, the number of the spacers 833 can be increased or decreased according to the use requirement, and in use, as shown in fig. 11, the upper holding ring body 1 and the lower holding ring body 2 are all installed in the high pressure cylinder 14, and the upper and lower holding ring bodies 1 can be adjusted by adjusting the thicknesses of the spacers 833 symmetrically arranged on the left and right sides of the gasket 833 on the upper holding ring body 1 and the lower holding ring body 2 and the upper and the lower holding ring body 13 and the upper and the middle ring body 3 of the spacer 833 can be adjusted by adjusting the thicknesses of the upper and the upper holding ring body and the lower holding ring body 2 and the upper holding ring body 13 and the lower holding ring body 13 and the middle ring body and the spacer 13 and the lower holding ring body 13 and the spacer 13.
In this embodiment, two sets of positioning holes are correspondingly formed on two sides of the upper holding ring body 1 and the lower holding ring body 2, the positioning assembly 6 includes two sets of taper pins penetrating through the two sets of positioning holes, the taper of the taper pins is 1:18-1:21, multiple sets of spaced locking holes are formed on two sides of the upper holding ring body 1 and the lower holding ring body 2, and the locking assembly 7 includes locking bolts screwed into the corresponding sets of locking holes, so as to meet the requirements of use strength and alignment, and the taper of the taper pins is preferably 1:20.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should substitute or change the technical solution according to the technical concept of the present invention, to cover the scope of the present invention.
Claims (9)
1. An adjustable integrated holding ring for a steam turbine, which is arranged in the steam turbine, and is characterized in that: the device comprises an upper holding ring body and a lower holding ring body which are arranged in a split manner, wherein an inner cavity which is radially enlarged from one end to the other end is formed in the inner periphery of the upper holding ring body after the upper holding ring body and the lower holding ring body are buckled; the adjustable integrated type holding ring for the steam turbine further comprises a plurality of stages of static blades and a plurality of groups of steam sealing pieces which are inserted into the inner cavity along the axial direction of the inner cavity, a positioning assembly for rapidly positioning after the upper holding ring body and the lower holding ring body are buckled, and a locking assembly for locking the upper holding ring body and the lower holding ring body after the upper holding ring body and the lower holding ring body are positioned, wherein the static blades at all stages and the groups of steam sealing pieces are installed in a staggered manner, and the adjustable integrated type holding ring for the steam turbine further comprises an adjusting assembly which is installed on the lower holding ring body and is convenient for centering with the steam turbine;
two groups of positioning holes are correspondingly formed in two sides of the upper holding ring body and two sides of the lower holding ring body respectively, the positioning assembly comprises two groups of taper pins which are respectively arranged in the two groups of positioning holes in a penetrating mode, the taper of each taper pin is 1:18-1:21, a plurality of groups of locking holes which are arranged at intervals are formed in two sides of the upper holding ring body and the lower holding ring body respectively and adjacent to the two groups of positioning holes, and the locking assembly comprises locking bolts which are respectively screwed in the corresponding groups of locking holes.
2. An adjustable integrated retaining ring for a steam turbine as set forth in claim 1, wherein: the adjusting assembly comprises a horizontal adjusting assembly arranged at the bottom of the lower holding ring body and vertical adjusting assemblies respectively arranged at two sides of the lower holding ring body, wherein the horizontal adjusting assembly and each vertical adjusting assembly comprise a gasket with a nitriding layer in nitriding treatment on the outer surface, a fastening screw for fixing the gasket and the lower holding ring body, and a gasket which is sleeved on the fastening screw and arranged between the gasket and the lower holding ring body, and the thickness of the nitriding layer is 0.2-0.35 mm.
3. An adjustable integrated retaining ring for a steam turbine as set forth in claim 1, wherein: the smaller diameter end of the inner cavity is a high-pressure steam inlet end, and sealing teeth are respectively arranged on the axial direction and the radial direction of the upper holding ring body and the lower holding ring body of the high-pressure steam inlet end.
4. An adjustable integrated retaining ring for a steam turbine according to claim 3, wherein: adjacent to the high-pressure steam inlet end, mounting grooves are formed in the inner peripheral surfaces of the upper holding ring body and the lower holding ring body, and a steam blocking ring is arranged in each mounting groove.
5. An adjustable integrated retaining ring for a steam turbine as set forth in claim 4, wherein: the choke ring is arranged in a split mode and is fixed in the lower holding ring body and the upper holding ring body through set screws respectively, and the length of the choke ring installed in the lower holding ring body is larger than that of the choke ring installed in the upper holding ring body.
6. An adjustable integrated retaining ring for a steam turbine as set forth in claim 5, wherein: the steam blocking ring comprises a rectangular water drain groove and two inner notches which are respectively formed at two sides of the steam blocking ring, and the water drain groove is formed corresponding to the position of the perpendicular bisector of the lower holding ring body.
7. An adjustable integrated retaining ring for a steam turbine as set forth in claim 5, wherein: the diameter of one end of the choke ring, which is arranged in the mounting groove, is larger than that of the other opposite end of the choke ring.
8. An adjustable integrated retaining ring for a steam turbine according to claim 3, wherein: the stator blades are fourteen stages, each stage of stator blade comprises a low shroud and a high shroud arranged adjacent to the low shroud, and the six stages of stator blades far away from one end of the high-pressure steam inlet end further comprise inclined planes arranged adjacent to the high shroud.
9. An adjustable integrated retaining ring for a steam turbine as set forth in claim 8, wherein: the angle of the inclined plane is 17 0 ～19 0 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332620.1A CN114135348B (en) | 2021-11-11 | 2021-11-11 | Adjustable integrated type holding ring for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332620.1A CN114135348B (en) | 2021-11-11 | 2021-11-11 | Adjustable integrated type holding ring for steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114135348A CN114135348A (en) | 2022-03-04 |
| CN114135348B true CN114135348B (en) | 2024-01-19 |
Family
ID=80393688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111332620.1A Active CN114135348B (en) | 2021-11-11 | 2021-11-11 | Adjustable integrated type holding ring for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114135348B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542210B (en) * | 2022-03-09 | 2023-12-05 | 中国船舶重工集团公司第七0三研究所 | Positioning structure of steam turbine partition plate retaining ring |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244819B1 (en) * | 1998-11-10 | 2001-06-12 | Dresser-Rand Company | Adjustable supporting assembly for turbine flowpath components and method thereof |
| WO2011045127A1 (en) * | 2009-10-16 | 2011-04-21 | Siemens Aktiengesellschaft | Sealing assembly on a steam turbine housing, comprising an adjustable sealing ring |
| CN203374322U (en) * | 2013-05-24 | 2014-01-01 | 华电国际电力股份有限公司山东分公司 | Low-pressure separating board for steam turbine double-rotor exchanging circulating water heat supply |
| CN105351011A (en) * | 2015-11-26 | 2016-02-24 | 北京全三维能源科技股份有限公司 | Steam turbine, pin-assembled rotor of stream turbine, and assembly method of pin-assembled rotor |
| WO2018033408A1 (en) * | 2016-08-16 | 2018-02-22 | General Electric Technology Gmbh | Axial flow turbine having a diaphragm split in two halves at a horizontal joint plane |
| CN110273717A (en) * | 2019-07-22 | 2019-09-24 | 浙江华元汽轮机械有限公司 | Turbomachinery and its mechanical axial displacement limiting device |
| CN110905605A (en) * | 2019-12-17 | 2020-03-24 | 河北国源电气股份有限公司 | Steam turbine steam guiding control device |
| CN211314285U (en) * | 2019-12-17 | 2020-08-21 | 河北国源电气股份有限公司 | High-efficient steam turbine of biomass power generation |
| CN211314286U (en) * | 2019-12-17 | 2020-08-21 | 河北国源电气股份有限公司 | Axial thrust balancer of steam turbine |
| CN211549784U (en) * | 2020-01-19 | 2020-09-22 | 沂源县华阳能源设备有限公司 | Steam turbine device of detachable stationary blade retaining ring |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002348984A1 (en) * | 2001-11-20 | 2003-06-10 | Alstom Technology Ltd | Gas turbo group |
| US7419355B2 (en) * | 2006-02-15 | 2008-09-02 | General Electric Company | Methods and apparatus for nozzle carrier with trapped shim adjustment |
| US8011110B2 (en) * | 2008-09-04 | 2011-09-06 | Mitsubishi Heavy Industries, Ltd. | Centering mechanism |
| US8528181B2 (en) * | 2009-07-10 | 2013-09-10 | Alstom Technology Ltd | Alignment of machine components within casings |
| CH703430A1 (en) * | 2010-07-13 | 2012-01-13 | Alstom Technology Ltd | Method for adjusting the rotor position in a gas turbine or steam turbine. |
| JP6271077B2 (en) * | 2014-07-24 | 2018-01-31 | シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Stator vane system for use in gas turbine engines |
| DE102017209682A1 (en) * | 2017-06-08 | 2018-12-13 | MTU Aero Engines AG | Axially split turbomachinery inner ring |
-
2021
- 2021-11-11 CN CN202111332620.1A patent/CN114135348B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244819B1 (en) * | 1998-11-10 | 2001-06-12 | Dresser-Rand Company | Adjustable supporting assembly for turbine flowpath components and method thereof |
| WO2011045127A1 (en) * | 2009-10-16 | 2011-04-21 | Siemens Aktiengesellschaft | Sealing assembly on a steam turbine housing, comprising an adjustable sealing ring |
| CN203374322U (en) * | 2013-05-24 | 2014-01-01 | 华电国际电力股份有限公司山东分公司 | Low-pressure separating board for steam turbine double-rotor exchanging circulating water heat supply |
| CN105351011A (en) * | 2015-11-26 | 2016-02-24 | 北京全三维能源科技股份有限公司 | Steam turbine, pin-assembled rotor of stream turbine, and assembly method of pin-assembled rotor |
| WO2018033408A1 (en) * | 2016-08-16 | 2018-02-22 | General Electric Technology Gmbh | Axial flow turbine having a diaphragm split in two halves at a horizontal joint plane |
| CN110273717A (en) * | 2019-07-22 | 2019-09-24 | 浙江华元汽轮机械有限公司 | Turbomachinery and its mechanical axial displacement limiting device |
| CN110905605A (en) * | 2019-12-17 | 2020-03-24 | 河北国源电气股份有限公司 | Steam turbine steam guiding control device |
| CN211314285U (en) * | 2019-12-17 | 2020-08-21 | 河北国源电气股份有限公司 | High-efficient steam turbine of biomass power generation |
| CN211314286U (en) * | 2019-12-17 | 2020-08-21 | 河北国源电气股份有限公司 | Axial thrust balancer of steam turbine |
| CN211549784U (en) * | 2020-01-19 | 2020-09-22 | 沂源县华阳能源设备有限公司 | Steam turbine device of detachable stationary blade retaining ring |
Non-Patent Citations (3)
| Title |
|---|
| 方雅丽 ; 王争艳 ; .超临界350MW汽轮机高压静叶持环的设计开发.热力透平.2011,(03),第32-35页. * |
| 蒸汽轮机2#静叶持环国产化加工工艺;杨保;岳岁宁;;现代制造技术与装备(11);第122-125页 * |
| 超临界350MW汽轮机高压静叶持环的设计开发;方雅丽;王争艳;;热力透平(03);第32-35页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114135348A (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5259727A (en) | Steam turbine and retrofit therefore | |
| CN114135348B (en) | Adjustable integrated type holding ring for steam turbine | |
| CN107355271B (en) | Organic Rankine cycle kilowatt-level power generation device | |
| US20160186593A1 (en) | Flowpath boundary and rotor assemblies in gas turbines | |
| US6648600B2 (en) | Turbine rotor | |
| US9664058B2 (en) | Flowpath boundary and rotor assemblies in gas turbines | |
| US9777586B2 (en) | Flowpath boundary and rotor assemblies in gas turbines | |
| US3584967A (en) | Mounting for adjustably holding a guide vane carrier in a multistage gas turbine | |
| CN210799052U (en) | Steam turbine for cracking gas device and cracking gas system | |
| CN207777053U (en) | A kind of hydraulic turbine integral type axial force self-balancing rotor assembly | |
| CN110905605A (en) | Steam turbine steam guiding control device | |
| CN109026819B (en) | Special-shaped tooth double-labyrinth sealing structure and special-shaped tooth mouth ring sealing structure with positioning function for nuclear main pump | |
| CN115434928B (en) | High-speed centrifugal air compressor and expander integrated device | |
| CN215980082U (en) | Integrated self-cooling circulating mechanical seal | |
| CN109209517A (en) | A kind of second level stator blade ring assemblies that flue gas turbine expander adaptively thermally expands | |
| CN207777062U (en) | A kind of integral type hydraulic turbine automatic flow rate adjusting device | |
| CN210509300U (en) | Integral magnetic ring stator blade of steam turbine | |
| CN113047914B (en) | Sealing structure between turbine stages of gas turbine | |
| CN220378551U (en) | Preposed pump structure for large boiler water supply pump set | |
| US20160186592A1 (en) | Flowpath boundary and rotor assemblies in gas turbines | |
| CN110608071A (en) | Steam turbine for cracking gas device and cracking gas system | |
| CN207777054U (en) | A kind of integrated liquid energy recycle device | |
| CN219588090U (en) | Shaft end sealing structure | |
| CN219932260U (en) | Adjustable balance gas seal system with oil mist separation function | |
| CN117028318B (en) | Diffuser assembly structure and installation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |