CN114135348A - Adjustable integrated holding ring for steam turbine - Google Patents
Adjustable integrated holding ring for steam turbine Download PDFInfo
- Publication number
- CN114135348A CN114135348A CN202111332620.1A CN202111332620A CN114135348A CN 114135348 A CN114135348 A CN 114135348A CN 202111332620 A CN202111332620 A CN 202111332620A CN 114135348 A CN114135348 A CN 114135348A
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- ring body
- holding ring
- steam
- lower holding
- steam turbine
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- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 9
- 230000003068 static effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 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
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
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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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
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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
- 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
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- 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 gradually enlarged from one end to the other end in the radial direction is formed in the inner surrounding after the upper holding ring body and the lower holding ring body are buckled; the steam turbine sealing device is characterized by further comprising multistage stationary blades and a plurality of groups of steam sealing blades which are inserted into the inner cavity along the axial direction of the inner cavity, positioning assemblies for quickly positioning after the upper retaining ring body and the lower retaining ring body are buckled, locking assemblies for locking the upper retaining ring body and the lower retaining ring body after the upper retaining ring body and the lower retaining ring body are positioned, the stationary blades and the steam sealing blades at all levels are installed in a staggered mode, and the steam turbine sealing device further comprises an adjusting assembly which is installed on the lower retaining ring body and is convenient for center alignment with a steam turbine. The multistage stationary blades can be integrally arranged, so that the product structure is compact, the center alignment operation can be simplified through the arrangement of the adjusting assembly, the multistage stationary blades are installed in an inserting mode, 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 retaining ring for a steam turbine.
Background
At present, in the domestic steam turbine for the high-speed power station, a series of stage clapboards which are axially arranged are mostly adopted, and a structure that a first-stage stationary blade is welded and installed on each stage clapboard; and the stator blade adopts the welding mode installation, not only can lead to the stator blade to warp and cause the processing degree of difficulty, still is unfavorable for the maintenance of stator blade to be changed.
Disclosure of Invention
The invention provides an adjustable integrated retaining ring for a steam turbine, which can at least solve one of the 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 gradually enlarged from one end to the other end in the radial direction is formed in the inner surrounding mode after the upper holding ring body and the lower holding ring body are buckled; the adjustable integrated type turbine steam turbine further comprises an adjusting assembly which is arranged 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, respectively, the horizontal adjusting assembly and each of the vertical adjusting assemblies include a gasket having a nitrided layer processed by nitriding on the outer surface, a fastening screw for fixing the gasket and the lower holding ring body, and a gasket sleeved on the fastening screw and installed between the gasket and the lower holding ring body, wherein the nitrided layer has a thickness of 0.2 to 0.35 mm.
As a further limitation to the above technical solution, two sets of positioning holes are correspondingly formed on two sides of the upper holding ring body and the lower holding ring body, the positioning assembly includes two sets of taper pins respectively penetrating through the two sets of positioning holes, the taper of the taper pins is 1: 18-1: 21, a plurality of sets of locking holes arranged at intervals are respectively formed on two sides of the upper holding ring body and the lower holding ring body adjacent to the two sets of positioning holes, and the locking assembly includes locking bolts respectively screwed in the sets of locking holes at corresponding positions.
As a further limitation to the above technical solution, one end of the inner cavity with a smaller diameter is a high-pressure steam inlet end, and sealing teeth are respectively installed on the upper holding ring body and the lower holding ring body of the high-pressure steam inlet end in the axial direction and the radial direction.
As a further limitation to the above technical solution, adjacent to the high pressure steam inlet end, mounting grooves are formed on the inner circumferential surfaces of the upper holding ring body and the lower holding ring body, and steam stop rings are mounted in the mounting grooves.
As a further limitation to the above technical solution, the steam trap ring is separately provided and fixed to the lower holding ring body and the upper holding ring body via set screws, and a length of the steam trap ring installed in the lower holding ring body is longer than a length of the steam trap ring installed in the upper holding ring body.
As a further limitation to the above technical solution, the steam trap includes a drain groove arranged in a rectangular shape and two inner notches respectively formed at two sides of the steam trap, and the drain groove is formed corresponding to the position of the perpendicular bisector of the lower holding ring body.
As a further limitation to the above technical solution, one end of the steam stop ring installed in the installation groove has a larger diameter than the other opposite end thereof.
As a further limitation to the above technical solution, the stationary blades are fourteen stages, each stage of stationary blades includes a low shroud and a high shroud disposed adjacent to the low shroud, and the last six stages of stationary blades far away from one end of the high-pressure steam inlet end further include an inclined surface disposed adjacent to the high shroud.
As a further limitation to the above technical solution, the angle of the inclined plane is 170～190。
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 the upper holding ring body and the lower holding ring body in an enclosing mode are arranged, the multistage stationary blades can be integrated on the upper holding ring body and the lower holding ring body which are buckled, so that the product structure is compact, and the center alignment operation can be simplified through the arrangement of the adjusting assembly; the multistage stationary blades are installed in a plug-in mounting mode, welding deformation can be avoided from affecting installation, the stationary blades are convenient to maintain and replace, and the effect is good.
Drawings
FIG. 1 is a schematic diagram 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 retaining ring for a steam turbine of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 3;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 4;
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 4;
FIG. 8 is an enlarged view at F of FIG. 4;
FIG. 9 is an enlarged view at G of FIG. 3;
FIG. 10 is an enlarged view at H of FIG. 3;
FIG. 11 is a schematic view of an assembly structure of an adjustable integrated retaining 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-positioning pin, 441-inclined notch, 5-steam seal sheet, 6-positioning component, 7-locking component, 81-horizontal adjusting component, 82-vertical adjusting component, 831-gasket, 832-fastening screw, 833-gasket, 9-sealing tooth, 10-steam stop ring, 101-steam trap, 102-internal notch, 11-hanging ring notch, 12-boss, 13-rotor, 131-rotor moving blade, 132-rotor steam seal sheet and 14-high pressure cylinder.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Examples
As shown in fig. 1 to 8, an adjustable integrated retainer ring for a steam turbine, installed in a steam turbine, which comprises an upper holding ring body 1 and a lower holding ring body 2 which are arranged in a split way, an inner cavity 3 which is radially enlarged from one end to the other end is enclosed inside the upper holding ring body 1 and the lower holding ring body 2 after the upper holding ring body and the lower holding ring body are buckled, the end with smaller diameter of the inner cavity 3 is a high-pressure steam inlet end, the end with larger diameter is a low-pressure steam outlet end, and the multi-stage static blades 4 and a plurality of groups of gland sealing blades 5 which are inserted in the inner cavity 3 along the axial direction of the inner cavity 3, and a positioning component 6 for quickly positioning after the upper holding ring body 1 and the lower holding ring body 2 are buckled, a locking component 7 for locking the upper holding ring body and the lower holding ring body after positioning, all levels of static blades 4 and all groups of steam sealing sheets 5 are installed in a staggered mode, and the adjustable integrated holding ring for the steam turbine further comprises an adjusting component which is installed on the lower holding ring body 2 and is convenient for centering with the steam turbine.
Specifically, in order to satisfy the optimization of the steam expansion work, the embodiment adopts the optimization of the ternary flow field design technology, the taper of the inner cavity 3 is designed to be 1:6, in order to improve the sealing effect and ensure that the steam enters the rotor moving blade 131 of the steam turbine to do work, as shown in fig. 9, the sealing teeth 9 are respectively installed 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, specifically, the sealing teeth 9 installed on the upper holding ring body 1 and the lower holding ring body 2 in the radial direction are matched with the shaft shoulder excircle of the rotor 13 of the steam turbine to realize the sealing of the steam injection of the nozzle group, and the sealing teeth 9 installed 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 nozzle group.
As shown in fig. 1 and 3, adjacent to the high pressure steam inlet end, mounting grooves are formed on the inner peripheral surfaces of the upper retaining ring body 1 and the lower retaining ring body 2, and steam stop rings 10 are mounted in the mounting grooves to be matched with the nozzle sets to prevent the blast effect, specifically, the mounting grooves are rectangular grooves, the steam stop rings 10 are separately arranged, in order to prevent the steam stop rings 10 from falling and rotating, the separately arranged steam stop rings 10 are respectively fixed in the lower retaining ring body 2 and the upper retaining ring body 1 through set screws, and the length of the steam stop rings 10 mounted in the lower retaining ring body 2 is greater than the length of the steam stop rings 10 mounted in the upper retaining ring body 1.
As shown in fig. 1, the steam trap 10 includes a drain groove 101 disposed in a rectangular shape and two inner notches 102 respectively formed at two sides of the steam trap 10, specifically, the drain groove 101 is disposed corresponding to the perpendicular bisector of the lower holding ring body 2, that is, the drain groove 101 is disposed at the lowest position of the steam trap 10, and is disposed in a U shape, the lowest end of the groove bottom of the drain groove 101 is equal to the lowest end of the inner diameter of the lower holding ring body 2, so as to satisfy the drainage of accumulated water, and for better matching with the nozzle group, a local protection cover is formed, so as to reduce the blowing loss as much as possible, and the diameter of the steam trap 10 installed at one end in the installation groove is larger than the diameter of the other opposite end.
In this embodiment, for the convenience of hoisting, the hoisting ring ports 11 are respectively arranged on the upper holding ring body 1 and the lower holding ring body 2, the hoisting ring ports 11 are two groups respectively arranged at corresponding positions of the upper holding ring body 1 and the lower holding ring body 2, for the convenience of axial positioning and radial coarse adjustment when the upper holding ring body 1 and the lower holding ring body 2 are installed in the turbine, and the bosses 12 are respectively arranged on the upper holding ring body 1 and the lower holding ring body 2.
In order to form a through-flow clearance fit with the rotor moving blades 131 of the steam turbine in a crossed manner, the inner cavity 3 is axially inserted into a plurality of stages of static blades 4 and a plurality of groups of steam sealing blades 5 of the inner cavity 3, specifically, the blade profile of the static blades 4 is of a reaction type design, as shown in a combined figure 10 of figure 3, the static blades 4 are fourteen stagesThe blades 4 all include the low shroud 41 and the high shroud 42 adjacent to the low shroud 41, so as to form a through-flow fit with the rotor gland sealing piece 132 of the steam turbine, in this embodiment, the through-flow fit clearance is set to be 0.5mm, in order to make the steam leakage between the stationary blade 4 and the rotor gland sealing piece 132 enter the through-flow channel more smoothly, the last six stages stationary blade 4 far away from one end of the high-pressure steam inlet end further include the inclined plane 43 adjacent to the high shroud 42, and the angle of the inclined plane 43 is 170～190In the present embodiment, the slope 43 is preferably 180。
In this embodiment, in order to facilitate the maintenance and replacement of the stationary blades 4, the stationary blades 4 are inserted into the inner cavity 3, and to ensure the stability, as shown in fig. 8, the contact positions of the stationary blades 4 with the split surfaces of the upper holding ring body 1 and the lower holding ring body 2 are fixed by the positioning pins 44, and the positioning pins 44 are distributed on both sides of the contact positions of the upper holding ring body 1, the lower holding ring body 2 and the stationary blades 4, i.e. each stage of stationary blades 4 needs four positioning pins 44 to be fixed, each positioning pin 44 is arranged in a straddling manner, i.e. the horizontal center line of each positioning pin 44 is located at the root of the stationary blade 4 and the contact position of the corresponding upper holding ring body 1 or lower holding ring body 2, in this embodiment, the positioning pins 44 are press-fitted by interference, the interference amount is 0.02mm, and the exposed end surfaces of the positioning pins 44 are 0.5mm lower than the split surfaces of the corresponding upper holding ring body 1 or lower holding ring body 2, so that the positioning pins 44 and the corresponding upper holding ring body 1 or lower holding ring body 2 are pressed, in this embodiment, as shown in fig. 7, each positioning pin 44 is provided with a bevel cut 441, and a material can be filled in a space between the corresponding split surface of the upper holding ring body 1 or the lower holding ring body 2 and the bevel cut 441 through a punching and riveting process, so as to prevent the positioning pin 44 from falling off, and to perform a dual fixing function. In order to ensure the tight fit of the stationary blades 4, the fit clearance should be less than 0.02mm everywhere after the stationary blades 4 are fixed.
Referring to fig. 12 and 13, which are schematic diagrams illustrating an assembly structure of an adjustable integrated retaining ring and a rotor 13 for a steam turbine, in this embodiment, each stage of the steam sealing strip 5 is set to have a high tooth shape and a low tooth shape, roots of the high tooth and the low tooth of each stage of the steam sealing strip 5 are set to be in U-shaped compression joint, a body thickness of the high tooth and the low tooth is 0.6mm, a tooth tip thickness is 0.3mm, a through-flow gap is formed between the high tooth and the low tooth and a rotor moving blade 131 of the steam turbine, and a fit gap between the high tooth and the corresponding rotor moving blade 131 is set to be 0.5mm to ensure a 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 retaining ring body 2, and vertical adjusting assemblies 82 installed at both sides of the lower retaining ring body 2, respectively, the horizontal adjusting assembly 81 and each vertical adjusting assembly 82 includes a washer 831 having a nitrided layer nitrided on the outer surface thereof, and a fastening screw 832 fixing the washer 831 and the lower retaining ring body 2, and further includes a gasket 833 fitted around the fastening screw 832 and installed between the washer 831 and the lower retaining ring body 2, in order to ensure the hardness and the wear resistance, the thickness of the nitrided layer is 0.2 to 0.35mm, preferably 0.3mm, the number of the gasket 833 can be increased or decreased according to the use requirement, and in the use, as shown in fig. 11, the assembling structure of the adjustable integrated retaining ring for the steam turbine and the rotor 13 of the steam turbine and the high pressure cylinder 14, in this embodiment, the upper retaining ring body 1 and the lower retaining ring body 2 are installed in the high pressure cylinder 14, the centering of the left and right centers of the upper and lower holding ring bodies 1 and 2 and the rotor 13 can be realized by adjusting the thicknesses of the gaskets 833 symmetrically arranged on the left and right sides of the horizontal adjusting assembly 81, and the centering of the upper and lower centers of the upper and lower holding ring bodies 1 and 2 and the rotor 13 can be realized by adjusting the thicknesses of the gaskets 833 symmetrically arranged on the upper and lower sides of the vertical adjusting assembly 82.
In this embodiment, two sets of positioning holes are correspondingly formed in two sides of the upper holding ring body 1 and the lower holding ring body 2, the positioning assembly 6 comprises two sets of taper pins which are respectively inserted into the two sets of positioning holes, the taper of the taper pins is 1: 18-1: 21, a plurality of sets of locking holes which are arranged at intervals are respectively formed in two sides of the upper holding ring body 1 and the lower holding ring body 2 and are adjacent to the two sets of positioning holes, the locking assembly 7 comprises locking bolts which are respectively screwed in the locking holes of the corresponding sets, and in order to meet the requirements of use strength and alignment, the taper of the taper pins is preferably 1: 20.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equally replacing or changing the technical idea of the present invention within the technical scope of the present invention.
Claims (10)
1. The utility model provides a ring is held to adjustable integrated form for steam turbine, installs in the steam turbine which characterized in that: the clamping 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 gradually enlarged from one end to the other end in the radial direction is formed in the inner surrounding manner after the upper holding ring body and the lower holding ring body are buckled; the adjustable integrated type turbine steam turbine further comprises an adjusting assembly which is arranged on the lower holding ring body and is convenient to align with the center of the steam turbine.
2. The adjustable integrated retaining ring for steam turbines of claim 1, wherein: the adjusting assembly comprises a horizontal adjusting assembly arranged at the bottom of the lower holding ring body, vertical adjusting assemblies respectively arranged at two sides of the lower holding ring body, a gasket with a nitrided layer processed on the outer surface of the gasket, a fastening screw for fixing the gasket and the lower holding ring body and a gasket sleeved on the fastening screw and arranged between the gasket and the lower holding ring body, wherein the thickness of the nitrided layer is 0.2-0.35 mm.
3. The adjustable integrated retaining ring for steam turbines of claim 1, wherein: two sides of the upper holding ring body and the lower holding ring body are respectively and correspondingly provided with two groups of positioning holes, the positioning assembly comprises two groups of taper pins which are respectively penetrated in the two groups of positioning holes, the taper of the taper pins is 1: 18-1: 21, two sides of the upper holding ring body and the lower holding ring body which are adjacent to the two groups of positioning holes are respectively provided with a plurality of groups of locking holes which are arranged at intervals, and the locking assembly comprises locking bolts which are respectively screwed in the locking holes of the groups at corresponding positions.
4. The adjustable integrated retaining ring for steam turbines of claim 1, wherein: the end, with the smaller diameter, of the inner cavity is a high-pressure steam inlet end, and sealing teeth are respectively arranged at the high-pressure steam inlet end in the axial direction and the radial direction of the upper holding ring body and the lower holding ring body.
5. The adjustable integrated retaining ring for steam turbines of claim 4, wherein: and adjacent to the high-pressure steam inlet end, mounting grooves are formed in the inner circumferential surfaces of the upper holding ring body and the lower holding ring body, and steam blocking rings are mounted in the mounting grooves.
6. The adjustable integrated retaining ring for a steam turbine of claim 5, wherein: the steam-blocking ring is arranged in a split manner and is fixed in the lower holding ring body and the upper holding ring body through set screws respectively, and the length of the steam-blocking ring installed in the lower holding ring body is greater than that of the steam-blocking ring installed in the upper holding ring body.
7. The adjustable integrated retaining ring for a steam turbine of claim 6, wherein: the steam trap ring comprises a drain groove and two inner notches, wherein the drain groove is arranged in a rectangular shape, the two inner notches are respectively formed in the two sides of the steam trap ring, and the drain groove is formed in a position corresponding to the perpendicular bisector of the lower holding ring body.
8. The adjustable integrated retaining ring for a steam turbine of claim 6, wherein: the diameter of one end of the steam stop ring installed in the installation groove is larger than that of the other opposite end of the steam stop ring.
9. The adjustable integrated retaining ring for steam turbines of claim 4, 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 rear 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.
10. The adjustable integrated retaining ring for a steam turbine of claim 9, wherein: the angle of the inclined plane is 170～190。
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 |
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| 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 |
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| CN114135348A true CN114135348A (en) | 2022-03-04 |
| CN114135348B CN114135348B (en) | 2024-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542210A (en) * | 2022-03-09 | 2022-05-27 | 中国船舶重工集团公司第七0三研究所 | Positioning structure of steam turbine clapboard retaining ring |
Citations (17)
| 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 |
| US20050132707A1 (en) * | 2001-11-20 | 2005-06-23 | Andreas Gebhardt | Gas turbo set |
| US20070189893A1 (en) * | 2006-02-15 | 2007-08-16 | General Electric Company | Methods and apparatus for nozzle carrier with trapped shim adjustment |
| US20100050404A1 (en) * | 2008-09-04 | 2010-03-04 | Mitsubishi Heavy Industries, Ltd. | Centering mechanism |
| US20110005054A1 (en) * | 2009-07-10 | 2011-01-13 | Alstom Technology Ltd | Alignment of machine components within casings |
| WO2011045127A1 (en) * | 2009-10-16 | 2011-04-21 | Siemens Aktiengesellschaft | Sealing assembly on a steam turbine housing, comprising an adjustable sealing ring |
| US20120039709A1 (en) * | 2010-07-13 | 2012-02-16 | Alstom Technology Ltd | Method and device for adjusting the rotor position in a gas turbine or steam turbine |
| 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 |
| US20170152866A1 (en) * | 2014-07-24 | 2017-06-01 | Siemens Aktiengesellschaft | Stator vane system usable within a gas turbine engine |
| 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 |
| US20180355761A1 (en) * | 2017-06-08 | 2018-12-13 | MTU Aero Engines AG | Axially divided turbomachine inner ring |
| 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 |
| 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 |
| 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 |
| 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 |
-
2021
- 2021-11-11 CN CN202111332620.1A patent/CN114135348B/en active Active
Patent Citations (17)
| 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 |
| US20050132707A1 (en) * | 2001-11-20 | 2005-06-23 | Andreas Gebhardt | Gas turbo set |
| US20070189893A1 (en) * | 2006-02-15 | 2007-08-16 | General Electric Company | Methods and apparatus for nozzle carrier with trapped shim adjustment |
| US20100050404A1 (en) * | 2008-09-04 | 2010-03-04 | Mitsubishi Heavy Industries, Ltd. | Centering mechanism |
| US20110005054A1 (en) * | 2009-07-10 | 2011-01-13 | Alstom Technology Ltd | Alignment of machine components within casings |
| WO2011045127A1 (en) * | 2009-10-16 | 2011-04-21 | Siemens Aktiengesellschaft | Sealing assembly on a steam turbine housing, comprising an adjustable sealing ring |
| US20120039709A1 (en) * | 2010-07-13 | 2012-02-16 | Alstom Technology Ltd | Method and device for adjusting the rotor position in a gas turbine or steam turbine |
| 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 |
| US20170152866A1 (en) * | 2014-07-24 | 2017-06-01 | Siemens Aktiengesellschaft | Stator vane system usable within a gas turbine engine |
| 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 |
| US20180355761A1 (en) * | 2017-06-08 | 2018-12-13 | MTU Aero Engines AG | Axially divided turbomachine inner ring |
| 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 |
| 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 |
| 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 |
| 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 (2)
| 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, no. 03, pages 32 - 35 * |
| 杨保;岳岁宁;: "蒸汽轮机2#静叶持环国产化加工工艺", 现代制造技术与装备, no. 11, pages 122 - 125 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542210A (en) * | 2022-03-09 | 2022-05-27 | 中国船舶重工集团公司第七0三研究所 | Positioning structure of steam turbine clapboard retaining ring |
| 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 |
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