CN109958481B - Structure is adjusted to rotatory baffle of steam turbine - Google Patents
Structure is adjusted to rotatory baffle of steam turbine Download PDFInfo
- Publication number
- CN109958481B CN109958481B CN201711435293.6A CN201711435293A CN109958481B CN 109958481 B CN109958481 B CN 109958481B CN 201711435293 A CN201711435293 A CN 201711435293A CN 109958481 B CN109958481 B CN 109958481B
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- CN
- China
- Prior art keywords
- cylinder
- cross rod
- hinged
- rocker arm
- connecting rod
- 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.)
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Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 abstract description 16
- 238000000605 extraction Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/345—Control or safety-means particular thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a turbine rotating partition plate adjusting structure, which comprises at least one group of adjusting structures, wherein each adjusting structure comprises a servomotor bracket arranged outside a cylinder and a fixed sleeve arranged inside the cylinder; the hydraulic motor support is internally provided with a cross rod in a penetrating way, one end of the cross rod is a connecting end used for connecting the hydraulic motor, the other end of the cross rod penetrates into the driving end inside the cylinder, a rotating shaft is arranged in the fixed sleeve, two ends of the rotating shaft are respectively and vertically connected with a first rocker arm and a second rocker arm, the first rocker arm is hinged to one end of a first connecting rod, the other end of the first connecting rod is hinged to the driving end of the cross rod, the second rocker arm is hinged to one end of a second connecting rod, and the other end of the second connecting rod is hinged to the edge of the rotating ring. According to the invention, only part of the cross rod is exposed outside the cylinder to be connected with the oil motor, and the other parts are all arranged inside the cylinder, so that interference with external parts of the cylinder is avoided, and the adoption of the rotary partition plate is effectively realized.
Description
Technical Field
The invention relates to the technical field of turbine air extraction regulation, in particular to a turbine rotating partition board regulating structure.
Background
The rotary partition board of the steam turbine is a common means for realizing the regulation of the steam extraction, so that the driving force required by the action of the rotary partition board comes from the oil motor, and the driving force of the oil motor to the rotating ring on the rotary partition board is transmitted by the regulating lever.
As shown in figure 1, the steam turbine comprises a cylinder 1, a rotary partition plate is arranged in the cylinder 1, a rotary ring 2 is arranged on the rotary partition plate, and the area of a steam passage can be adjusted when the rotary ring 2 rotates so as to realize the effect of flow regulation. The usual rotating diaphragm adjusting mechanism comprises an outer rocker 101, a support housing 102, a fulcrum shaft 103, an inner rocker 104 and a plurality of rocker arms 105, wherein the outer rocker 101 is connected with a servomotor 100. Wherein the outer rocker 101, the support housing 102 and the fulcrum shaft 103 are arranged outside the cylinder, occupy a large space and are easy to interfere with other components (such as a main valve, a valve adjusting and the like). If the position of the adjusting steam extraction is close to the steam outlet of the cylinder, the positions of the outer rocker 101, the support shell 102 and the fulcrum shaft 103 are very easy to interfere with the huge steam outlet, that is, the conventional method cannot basically realize steam extraction at the position close to the steam outlet, so that a new adjusting steam extraction structure is required to be provided, and interference is avoided.
Disclosure of Invention
The invention aims to provide a turbine rotating partition plate adjusting structure which effectively avoids interference with parts near a steam exhaust port of a cylinder so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the rotary partition plate adjusting structure of the steam turbine comprises a cylinder, wherein a rotary partition plate is arranged in the cylinder, the rotary partition plate comprises a rotary ring and at least one group of adjusting structures, and each adjusting structure comprises a servomotor bracket arranged outside the cylinder and a fixed sleeve arranged inside the cylinder; a cross rod is arranged in the oil motor support in a penetrating way, one end of the cross rod is a connecting end used for connecting the oil motor, the other end of the cross rod is a driving end penetrating into the cylinder, a rotating shaft is arranged in the fixed sleeve, the axial direction of the rotating shaft is perpendicular to the length direction of the cross rod, and the axial direction of the rotating shaft is perpendicular to the plate surface of the rotating ring; the two ends of the rotating shaft are respectively and vertically connected with a first rocker arm and a second rocker arm, the first rocker arm is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to the driving end of the cross rod, the second rocker arm is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the edge of the rotating ring.
Preferably, the oil motor support is of a cylindrical structure.
Preferably, a bearing is arranged between the fixed sleeve and the rotating shaft.
Preferably, the two groups of adjusting structures are arranged on two sides of the rotating ring oppositely.
As described above, the rotary partition plate adjusting structure of the steam turbine has the following beneficial effects:
the structure of the adjusting rotary baffle plate is designed in a quasi-built-in way, only part of the cross rod is exposed outside the cylinder to be connected with the oil motor, and the whole adjusting structure is basically arranged inside the cylinder, so that interference with external parts of the cylinder is avoided, and the adoption of the rotary baffle plate is effectively realized.
Compared with the conventional mode, the invention has the characteristics of simpler structure, low cost and good effect.
Drawings
FIG. 1 is a schematic diagram of a prior art rotary diaphragm adjustment in a steam turbine cylinder.
Fig. 2 is a structural diagram of the present invention.
Fig. 3 is a partial enlarged view of fig. 2.
In the figure:
1. cylinder 2 rotary ring
3. Adjusting structure 31 oil motor support
32. 33 cross bars of fixed sleeve
34. First link of spindle 35
36. Second connecting rod 331 connecting end
332. Driving end 341 first rocker arm
342. Second rocker arm 100 oil motor
101. Outer rocker 102 support shell
103. Fulcrum shaft 104 internal rocker
105. Swing rod
Detailed Description
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present invention, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present invention, should be construed as falling within the scope of the present invention. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
As shown in fig. 2-3, the present invention is a rotary diaphragm adjusting structure of a steam turbine, the steam turbine includes a cylinder 1, a rotary diaphragm is provided in the cylinder 1, the rotary diaphragm includes a rotary ring 2, and at least one group of adjusting structures 3 are included, the adjusting structures 3 include a motor bracket 31 installed outside the cylinder 1 and a fixing sleeve 32 installed inside the cylinder 1, that is, positions of the motor bracket 31 and the fixing sleeve 32 are fixed. A cross rod 33 is arranged in the oil motor bracket 31 in a penetrating way, one end of the cross rod 33 is a connecting end 331 for connecting the oil motor, the other end of the cross rod is a driving end 332 penetrating into the cylinder, a rotating shaft 34 capable of rotating independently is arranged in the fixed sleeve 32, the axial direction of the rotating shaft 34 is perpendicular to the length direction of the cross rod 31, and the axial direction of the rotating shaft 34 is perpendicular to the plate surface of the rotating ring 2; the two ends of the rotating shaft 34 are respectively and vertically connected with a first rocker 341 and a second rocker 342, the first rocker 341 is hinged at one end of the first connecting rod 35, the other end of the first connecting rod 35 is hinged with the driving end 332 of the cross rod 33, the second rocker 342 is hinged at one end of the second connecting rod 36, and the other end of the second connecting rod 36 is hinged with the edge of the rotating ring 2.
With reference to fig. 2 and 3, the structural principle of the present invention is: only set up the engine support 31 with engine complex outside cylinder 1, other structures all set up in cylinder 1 inside, have effectively avoided the external emergence of the condition of easily interfering with the external part of cylinder (such as cylinder exhaust port etc.) of mechanism. Specifically, the engine is transversely supported outside the cylinder through the engine bracket 31, and the engine is cooperatively connected with the connecting end 331 of the cross rod 33, and the cross rod 33, the first connecting rod 35, the first rocker 341, the rotating shaft 34, the second rocker 342 and the second connecting rod 36 which are sequentially arranged form a complete connecting rod adjusting mechanism. During operation, power is transmitted through the transverse linear driving of the oil motor, firstly, the first connecting rod 35 drives the first rocker arm 341 to swing, then the rotating shaft 34 is driven to rotate in the fixed sleeve 32, after that, the rotating shaft 34 rotates to transmit power to the second rocker arm 342, the second rocker arm 342 drives the second connecting rod 36 to swing, finally, the rotating motion of the rotating ring 2 around the center line of the rotating ring is realized through the swinging movement of the second connecting rod 36, the opening and closing of the extraction opening on the rotating partition plate can be adjusted when the rotating ring 2 rotates, the purpose of adjusting the rotating partition plate is achieved, and the extraction of the steam turbine is realized.
As shown in fig. 3, the engine support 31 has a cylindrical structure, and the cross bar 33 is disposed along a center line of the engine support 31.
In order to reduce friction, a bearing is provided between the stationary sleeve 32 and the rotating shaft 34.
As shown in fig. 2, in order to balance the force applied to the rotating ring 2 during rotation, the two sets of adjustment structures 3 are provided, and the two sets of adjustment structures 3 are disposed on two opposite sides of the rotating ring 2. Through the two groups of structures, the rotating ring 2 can obtain a group of couples to perform adjustment actions, and the adjustment function is completed. When in use, the synchronous transverse driving of the two side oil motors is finally converted into the movement of the rotating ring 2, thus completing the function of the invention.
The cross bar 33 and the first link 35, the first link 35 and the first rocker 341, the second rocker 342 and the second link 36, and the second link 36 and the rotating ring 2 in this embodiment are all hinged by pins.
Because the structure of the invention is basically built in the cylinder, and only the oil motor bracket connected with the oil motor is arranged outside, the structure is very suitable for being applied to the parts with narrow spaces at two sides of the steam extraction port, such as the steam extraction port near the steam exhaust position of the cylinder; furthermore, the invention is also applicable to the conventional position of the cylinder.
In summary, the invention provides a turbine rotating partition plate adjusting structure, which can avoid the problem of interference with external parts of a cylinder. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. The present invention is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (4)
1. The utility model provides a rotatory baffle regulation structure of steam turbine, steam turbine includes cylinder (1), is equipped with rotatory baffle in cylinder (1), and rotatory baffle includes swivel becket (2), its characterized in that: comprises at least one group of adjusting structures (3), wherein the adjusting structures (3) comprise a motor bracket (31) arranged outside the cylinder (1) and a fixed sleeve (32) arranged inside the cylinder (1); a cross rod (33) is arranged in the oil motor support (31) in a penetrating way, one end of the cross rod (33) is a connecting end (331) for connecting the oil motor, the other end of the cross rod is a driving end (332) penetrating into the cylinder, a rotating shaft (34) is arranged in the fixed sleeve (32), the axial direction of the rotating shaft (34) is perpendicular to the length direction of the cross rod (33), and the axial direction of the rotating shaft (34) is perpendicular to the plate surface of the rotating ring (2); the two ends of the rotating shaft (34) are respectively and vertically connected with a first rocker arm (341) and a second rocker arm (342), the first rocker arm (341) is hinged to one end of a first connecting rod (35), the other end of the first connecting rod (35) is hinged to the driving end (332) of the cross rod (33), the second rocker arm (342) is hinged to one end of a second connecting rod (36), and the other end of the second connecting rod (36) is hinged to the edge of the rotating ring (2).
2. The rotating diaphragm adjusting structure of a steam turbine according to claim 1, wherein: the oil motor bracket (31) is of a cylindrical structure.
3. The rotating diaphragm adjusting structure of a steam turbine according to claim 1, wherein: a bearing is arranged between the fixed sleeve (32) and the rotating shaft (34).
4. The rotating diaphragm adjusting structure of a steam turbine according to claim 1, wherein: the two groups of the adjusting structures (3) are arranged, and the two groups of the adjusting structures (3) are oppositely arranged at two sides of the rotating ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435293.6A CN109958481B (en) | 2017-12-26 | 2017-12-26 | Structure is adjusted to rotatory baffle of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435293.6A CN109958481B (en) | 2017-12-26 | 2017-12-26 | Structure is adjusted to rotatory baffle of steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109958481A CN109958481A (en) | 2019-07-02 |
| CN109958481B true CN109958481B (en) | 2024-03-19 |
Family
ID=67022401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435293.6A Active CN109958481B (en) | 2017-12-26 | 2017-12-26 | Structure is adjusted to rotatory baffle of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958481B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324193A (en) * | 2007-06-15 | 2008-12-17 | 程建平 | Radial double-flow turbine |
| CN102022142A (en) * | 2009-09-23 | 2011-04-20 | 上海电气电站设备有限公司 | Built-in steam extraction controlling and regulating valve set for steam turbine |
| EP3087255A1 (en) * | 2014-01-28 | 2016-11-02 | Siemens Aktiengesellschaft | Steam turbine comprising a throttle device |
| CN207920674U (en) * | 2017-12-26 | 2018-09-28 | 上海电气电站设备有限公司 | A kind of steam turbine rotary spacing plate adjustment structure |
-
2017
- 2017-12-26 CN CN201711435293.6A patent/CN109958481B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324193A (en) * | 2007-06-15 | 2008-12-17 | 程建平 | Radial double-flow turbine |
| CN102022142A (en) * | 2009-09-23 | 2011-04-20 | 上海电气电站设备有限公司 | Built-in steam extraction controlling and regulating valve set for steam turbine |
| EP3087255A1 (en) * | 2014-01-28 | 2016-11-02 | Siemens Aktiengesellschaft | Steam turbine comprising a throttle device |
| CN207920674U (en) * | 2017-12-26 | 2018-09-28 | 上海电气电站设备有限公司 | A kind of steam turbine rotary spacing plate adjustment structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109958481A (en) | 2019-07-02 |
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