CN201165882Y - TRT adjustable stationary blade coupling loop - Google Patents
TRT adjustable stationary blade coupling loop Download PDFInfo
- Publication number
- CN201165882Y CN201165882Y CNU2008200616780U CN200820061678U CN201165882Y CN 201165882 Y CN201165882 Y CN 201165882Y CN U2008200616780 U CNU2008200616780 U CN U2008200616780U CN 200820061678 U CN200820061678 U CN 200820061678U CN 201165882 Y CN201165882 Y CN 201165882Y
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- Prior art keywords
- sphere
- variable stator
- trt
- stator vane
- vane angle
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Abstract
The utility model relates to a variable stator blade coupling loop for a TRT. An external loop surface of the loop is sequentially composed of a conical surface, a cylindrical surface I, a spherical surface and a cylindrical surface II from left to right. Axes of the conical surface, the cylindrical surface I and the cylindrical surface II are the same, the spherical center of the spherical surface is located on the axis of the conical surface, the cylindrical surface I and the cylindrical surface II, the sphere diameter is 1.5mm-2.2mm smaller than that of a variable stator blade tip, and the axial length is 1.1-1.3 times of the blade tip width of a variable stator blade. The variable stator blade coupling loop can be designed to be an integral hoop and also can be composed of an upper half loop and a lower half loop for meeting requirements of the TRTs of different types. The coupling loop is mounted in an inlet casing of the TRT, and the spherical surface of the inlet casing is compatible with the variable stator blade to form a ventilation clearance.
Description
Technical field
The utility model relates to the gas guiding component of the variable stator vane angle assembly in a kind of and the blast-furnace top gas recovery turbine generator (english abbreviation TRT is called for short TRT in below describing).
Background technique
TRT is a kind of turbine power generation unit that utilizes the generating of blast furnace gas heat content, during work, blast furnace gas imports through diversion component, gas channeling can be driven the direction of movable vane rotation by variable stator vane angle, movable vane rotation under the driving of blast furnace gas drives main axis rotation acting generating.In order to reduce the erosion of blast furnace gas to the stator blade blade tip, improve the working life of stator blade blade, prior art is the sphere that is provided with on rotor with the variable stator vane angle assembly, and blast furnace gas is entered from the gap of the blade tip of variable stator vane angle and the formation of epitrochanterian sphere.Though setting can reduce the erosion of blast furnace gas to the stator blade blade tip with the sphere of variable stator vane angle assembly on rotor, but because rotor is the high speed rotating member and has axial displacement, thereby the gap length instability of the blade tip of variable stator vane angle and the formation of epitrochanterian sphere, can increase the difficulty of processing of rotor in addition, increase the weight of rotor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of TRT variable stator vane angle coupling ring is provided, and sphere on this kind coupling ring outer ring surface and variable stator vane angle assembly can form little and stable airspace, further reduce aerodynamic loss, reduce the erosion of blast furnace gas the stator blade blade tip.
TRT variable stator vane angle coupling ring described in the utility model, its outer ring surface is made up of conical surface, cylndrical surface I, sphere and cylndrical surface II from left to right successively, described conical surface is identical with the axis of cylndrical surface I, cylndrical surface II, the centre of sphere of described sphere is positioned on the axis of conical surface and cylndrical surface I, cylndrical surface II, its sphere diameter is than the little 1.5mm～2.2mm of sphere diameter of variable stator vane angle blade tip, and its axial length is 1.1～1.3 times of blade tip width of variable stator vane angle.
Cross the speed in the gap of the sphere formation on variable stator vane angle blade tip and the coupling ring in order further to reduce gas stream, in the coupling ring diameter of cylndrical surface should be than the sphere diameter of sphere big 3mm～6mm.
Coupling ring described in the utility model both can be designed to integral loop, can be combined by last semi-ring and following semi-ring again, to satisfy the needs of dissimilar TRT.
During use, coupling ring described in the utility model is installed in the inlet casing of TRT, by bolt, during installation, should guarantee that the centre of sphere of sphere on the coupling ring overlaps with the centre of sphere of variable stator vane angle blade tip sphere.
The utlity model has following beneficial effect:
1, coupling ring described in the utility model is installed in the inlet casing of TRT, remain static during work, sphere on the coupling ring outer ring surface and variable stator vane angle assembly, can form stable airspace, a kind of technological scheme of different designs compared with prior art, is provided for the working life of improving the stator blade blade.
2, use coupling ring described in the utility model, both can reduce the rotor difficulty of processing, alleviate rotor weight, can make airspace between stator blade blade tip and the coupling ring sphere reach enough little again, to reduce aerodynamic loss.
3, because the sphere radial height on the coupling ring outer ring surface is lower than the radial height of its both sides cylinder, thereby greatly reduce the speed that gas stream is crossed the variable stator vane angle tip clearance, further lowered aerodynamic loss, reduced the erosion of blast furnace gas the stator blade blade tip.
Description of drawings
Fig. 1 is a kind of structural drawing of TRT variable stator vane angle coupling ring described in the utility model, is combined by last semi-ring and following semi-ring;
Fig. 2 is the another kind of structural drawing of TRT variable stator vane angle coupling ring described in the utility model, is integral loop;
Fig. 3 is the scheme of installation of TRT variable stator vane angle coupling ring described in the utility model, and this chart is understood the assembly relation of coupling ring and variable stator vane angle, has also shown the structure of coupling ring endoporus.
Among the figure, semi-ring, 3-conical surface, 4-cylndrical surface I, 5-sphere, 6-cylndrical surface II, 7-mounting plate assembly, 8-bolt, 9-main shaft, 10-variable stator vane angle, 11-movable vane, 12-diversion component I, 13-diversion component II under the last semi-ring of 1-, the 2-.
Embodiment
Coupling ring in the present embodiment is used for GT200 type TRT, and the sphere diameter of this kind TRT variable stator vane angle 10 blade tips is 1000mm.The structure of described coupling ring is combined by last semi-ring 1 and following semi-ring 2 as shown in Figure 1.The outer ring surface of last semi-ring 1 and following semi-ring 2 is made up of conical surface 3, cylndrical surface I 4, sphere 5 and cylndrical surface II 6 from left to right successively, described conical surface is identical with the axis of cylndrical surface I, cylndrical surface II, the centre of sphere of described sphere is positioned on the axis of conical surface and cylndrical surface I, cylndrical surface II, the sphere diameter of described sphere is than the little 1.8mm of sphere diameter of TRT variable stator vane angle 10 blade tips, and the axial length of described sphere is 1.2 times of blade tip width of variable stator vane angle 10; Cylndrical surface I is identical with the diameter of cylndrical surface II, and their diameter is than the big 4mm of sphere diameter of sphere 5.In the present embodiment, the endoporus of coupling ring is the ladder circular hole, as shown in Figure 3.
During making, will go up semi-ring 1 with bolt and link together by the turning processing conical surface and cylinder with following semi-ring 2; To go up semi-ring 1 and following semi-ring 2 usefulness connecting bolts and be connected with inlet casing and tighten up back processing sphere, to guarantee the quality of fit between sphere and the variable stator vane angle blade tip.
The mounting type of the described coupling ring of present embodiment is positioned at the TRT inlet casing as shown in Figure 3, is fixed on the mounting plate assembly by connecting bolt, and the sphere 5 on the coupling ring outer ring surface and the blade tip assembly of TRT variable stator vane angle 10 form airspace.
Claims (3)
1, a kind of TRT variable stator vane angle coupling ring, the outer ring surface that it is characterized in that it is made up of conical surface (3), cylndrical surface I (4), sphere (5) and cylndrical surface II (6) from left to right successively, described conical surface is identical with the axis of cylndrical surface I, cylndrical surface II, the centre of sphere of described sphere is positioned on the axis of conical surface and cylndrical surface I, cylndrical surface II, the sphere diameter of described sphere is than the little 1.5mm～2.2mm of sphere diameter of variable stator vane angle (10) blade tip, and the axial length of described sphere is 1.1～1.3 times of blade tip width of variable stator vane angle (10).
2, TRT variable stator vane angle coupling ring according to claim 1 is characterized in that described cylndrical surface I (4) is identical with the diameter of cylndrical surface II (6), and their diameter is than the big 3mm～6mm of sphere diameter of sphere (5).
3, TRT variable stator vane angle coupling ring according to claim 1 and 2 is characterized in that being combined by last semi-ring (1) and following semi-ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200616780U CN201165882Y (en) | 2008-01-09 | 2008-01-09 | TRT adjustable stationary blade coupling loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200616780U CN201165882Y (en) | 2008-01-09 | 2008-01-09 | TRT adjustable stationary blade coupling loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165882Y true CN201165882Y (en) | 2008-12-17 |
Family
ID=40191268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200616780U Expired - Lifetime CN201165882Y (en) | 2008-01-09 | 2008-01-09 | TRT adjustable stationary blade coupling loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165882Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454431A (en) * | 2010-10-15 | 2012-05-16 | 通用电气公司 | Variable turbine nozzle system |
| CN106050322A (en) * | 2016-08-08 | 2016-10-26 | 中国船舶重工集团公司第七�三研究所 | Tilting axis type variable-geometry power turbine guide vane |
| CN110656981A (en) * | 2019-10-09 | 2020-01-07 | 莱芜钢铁集团有限公司 | TRT stationary blade adjustable mechanism positioning method |
-
2008
- 2008-01-09 CN CNU2008200616780U patent/CN201165882Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454431A (en) * | 2010-10-15 | 2012-05-16 | 通用电气公司 | Variable turbine nozzle system |
| CN102454431B (en) * | 2010-10-15 | 2015-07-22 | 通用电气公司 | Variable turbine nozzle system |
| CN106050322A (en) * | 2016-08-08 | 2016-10-26 | 中国船舶重工集团公司第七�三研究所 | Tilting axis type variable-geometry power turbine guide vane |
| CN110656981A (en) * | 2019-10-09 | 2020-01-07 | 莱芜钢铁集团有限公司 | TRT stationary blade adjustable mechanism positioning method |
| CN110656981B (en) * | 2019-10-09 | 2022-03-25 | 莱芜钢铁集团有限公司 | TRT stationary blade adjustable mechanism positioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU CHENGFA ENERGY POWER ENGINEERING CO., LTD. Free format text: FORMER OWNER: CHENGDU ENGINE (GROUP) CO., LTD. Effective date: 20120331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120331 Address after: 610503 the town of Xindu Xindu District of Chengdu Shulong Avenue South 521 Building No. 166 layer 1-2 Patentee after: CHENGDU CHENGFA SCIENCE & TECHNOLOGY POWER ENGINEERING CO., LTD. Address before: Xindu District of Chengdu city in Sichuan province 610503 Shulong avenue into the industrial park into the Group Technology Center Patentee before: Chengdu Engine (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |
|
| CX01 | Expiry of patent term |