CN112145239A - Vertical driving special purpose steam turbine - Google Patents
Vertical driving special purpose steam turbine Download PDFInfo
- Publication number
- CN112145239A CN112145239A CN202010939472.9A CN202010939472A CN112145239A CN 112145239 A CN112145239 A CN 112145239A CN 202010939472 A CN202010939472 A CN 202010939472A CN 112145239 A CN112145239 A CN 112145239A
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- Prior art keywords
- steam
- steam turbine
- turbine
- shaft
- reducer
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Links
- 238000000855 fermentation Methods 0.000 claims abstract description 10
- 230000004151 fermentation Effects 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 48
- 239000003921 oil Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 15
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
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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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
-
- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/12—Combinations with mechanical gearing
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- 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
- F01D25/18—Lubricating arrangements
- F01D25/183—Sealing means
-
- 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
- F01D25/30—Exhaust heads, chambers, or the like
Abstract
The invention relates to a vertical driving special-purpose steam turbine, which is a steam turbine directly driven by a biochemical fermentation tank and replaces a tank top stirrer in the industries of biochemical industry, pharmacy and the like to use a novel device driven by a motor all the time; the method mainly comprises the following steps: the high-speed gearbox comprises a coupler, a steam turbine seat frame, a high-speed gearbox, a cylinder, impeller blades, a nozzle group, a steering guide vane ring and a steam seal, wherein the steam turbine seat frame is directly connected with a fermentation tank flange, a low-speed output shaft of the high-speed gearbox is downwards and directly connected with a fermentation tank stirrer through the coupler, a high-speed input shaft of the high-speed gearbox is upwards and directly connected with the turbine impeller blades, the steam turbine cylinder is fixed on the high-speed gearbox through four-point support, the steam turbine does not have an independent bearing seat, a bearing is arranged in the high-speed gearbox, the rotating speed of the steam turbine is stable, safe and long-term operation at the.
Description
Technical Field
The invention relates to a vertical steam turbine, in particular to a vertical driving steam turbine with special application.
Background
At present, a mainstream steam turbine in the market is a horizontal steam turbine, the output torque of the steam turbine is generally horizontal output, meanwhile, the unit occupies a large area, the steam turbine is not applicable to some special occasions, a small amount of vertical steam turbines can output the torque in the vertical direction, but the structural design is insufficient, the steam turbine cannot be applied to the arrangement on the top end of a fermentation tank, the current situation that a fermentation tank stirrer is driven by a motor all the time is caused, the steam energy of a factory cannot be used in a stepped mode, the energy-saving and emission-reducing effect is poor, the long-term operation and maintenance cost of equipment is.
Disclosure of Invention
The invention aims to solve the defects and provide the vertical driving special-purpose steam turbine which has compact structure, high automation degree and low operation and maintenance cost and is suitable for being installed at the top of a fermentation tank.
In order to achieve the purpose, the vertical drive special purpose steam turbine designed by the invention is characterized in that a steam turbine unit is directly arranged at the top of a fermentation tank through a steam turbine seat frame, and a speed reducer output shaft and a stirrer shaft head form semi-rigid connection capable of transmitting axial force through a coupler; the high-speed reducer is fixed on a turbine seat frame, a turbine impeller is arranged on an input shaft of the reducer to form a turbine rotating part, and the exhaust cylinder, the nozzle group and the steam chamber form a turbine stator part.
The further scheme is that an output shaft end oil sealing device is arranged at the output shaft end of the speed reducer, lubricating oil of a bearing at the output shaft end of the speed reducer is thrown away from the main shaft through an oil thrower and flows into an oil collecting chamber below the main shaft for recycling, and an input shaft end oil seal is positioned at the input end of a high-speed shaft of the speed reducer and is sealed in an oil blocking mode. An axial positioning mechanism and a vertical key torque mechanism are arranged between the turbine impeller and the input shaft of the speed reducer, and the rotating part of the turbine is axially and radially positioned through a combined bearing and a radial bearing in the speed reducer to form a cantilever type structure.
The further scheme is that the input shaft of the speed reducer is simultaneously used as a high-speed gear shaft of the speed reducer to be shared with a main shaft of the steam turbine, a rotating speed probe is arranged at a speed measuring device, a detection tooth is arranged on a corresponding shaft, a vibration measuring probe is arranged at a vibration measuring device, a detection surface is arranged on the corresponding shaft, and a turning hole is arranged at a turning device. The steam exhaust cylinder and the steam chamber are fixed on the speed reducer through the cylinder support, the upper position and the lower position of the steam chamber are adjusted through the adjusting gasket, then the nozzle group and the moving and static gaps between the steering guide vane ring and the turbine impeller are adjusted, and a turbine shaft seal device is arranged between the steam chamber and the input shaft of the speed reducer to form an effective sealing effect.
The further scheme is that the high-speed reducer is fixed on a steam turbine seat frame through an adjusting sizing block, the level of the reducer is adjusted, then an upward steam inlet arranged at the lower part of a steam chamber between an output shaft of the reducer and a shaft head of the stirrer is adjusted, a steam inlet flange is matched and connected with a steam inlet steam pipeline, and a vertical upward steam outlet arranged on the steam exhaust cylinder is matched and connected with a steam exhaust flange and a steam exhaust steam pipeline.
The invention has the advantages that:
the output shaft of the reduction gearbox is supported by a turbine seat frame to be connected with a shaft of the fermentation tank stirrer, a turbine steam chamber is positioned at the input end of the reduction gearbox and is fixed on the reduction gearbox through a cylinder bracket, and the turbine steam chamber, a nozzle group, a steering guide vane ring, an impeller blade and a shaft seal system form a turbine through-flow part; the main shaft of the steam turbine and the high-speed shaft of the speed reducer are shared, and a steam turbine impeller is fixed on the main shaft through a positioning surface and a bolt to form a steam turbine rotor; the turbine rotor forms a bearing support system through a combined bearing and a radial bearing on the reduction gearbox; the radial and axial forces of the rotor are borne, and the turbine impeller is positioned outside a bearing support system formed by the combined bearing and the radial bearing, so that the turbine impeller is designed into a turbine cantilever structure; the stability of the rotor is enhanced along with the increase of the rotating speed due to the gyro effect in the operation of the cantilever vertical structure design; the application of the reduction gearbox not only reduces the volume of the steam turbine, but also further simplifies the structure of the steam turbine and meets the requirements of various equipment with different rotating speeds.
In order to reduce shaft seal steam leakage of the steam turbine, a single cantilever structure is adopted, a carbon ring seal sealing mode is arranged at one end of the steam turbine, and meanwhile, a segmented structure is adopted to gradually guide the steam leakage to different low-pressure air sources for utilization. The steam chamber does not establish the well facet for circular body structure, only passes through perpendicular well facet with the steam exhaust cylinder at steam extraction low pressure side and is connected, has further reduced the possibility of revealing of steam, and outside the steam turbine seat frame was arranged in to the steam turbine governing valve, used the hose connection between steam turbine governing valve and the steam turbine steam chamber, also used metal collapsible tube to be connected between steam turbine steam exhaust cylinder and the exhaust steam pipe way, reduced the influence of pipeline stress to steam turbine equipment like this, the quick replacement of the unit of being convenient for simultaneously.
In order to meet the good lubricating effect of the feeding unit, the external oil station is adopted to meet the unit lubricating requirement, in order to ensure the sealing of the unit lubricating oil, the output shaft end of the speed reducer is sealed in a dredging mode, the bearing lubricating oil flows downwards along the output shaft, the oil thrower is arranged on the output shaft, and when the oil falls on the oil thrower, under the action of centrifugal force, the lubricating oil is thrown away from the main shaft and falls into the oil collecting chamber below to be recovered, so that the sealing effect is achieved, and the non-contact sealing is realized.
In order to meet the reasonable flow direction of steam, the steam exhaust cylinder adopts an upward steam exhaust structure, so that the resistance of the steam is reduced, meanwhile, the upward steam exhaust can increase the overhaul visual area, and convenience is brought to a user in the arrangement of a steam exhaust pipeline.
In order to meet the automatic control requirement and reduce the operation intensity of personnel, the invention adopts a complete automatic monitoring means to realize automatic schemes of online real-time operation monitoring, fault first-out alarm recording, automatic parameter adjustment, one-key starting and the like.
The vertical driving special-purpose steam turbine obtained by the invention is subjected to relevant optimization design through reasonable structural arrangement and special requirements of the fermenter stirrer, the structure of the steam turbine is simplified, the volume of a steam turbine set is reduced, the automation degree is improved, the operation and maintenance cost is reduced, and the energy utilization rate is improved.
The vertical drive special-purpose steam turbine obtained by the invention fills the blank of installing the steam turbine on the reaction tank body.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention
Wherein the device comprises an exhaust flange 1, an exhaust cylinder 2, a steering guide vane ring 3, a nozzle group 4, a steam chamber 5, an inlet flange 6, a combined bearing 7, a speed measuring device 8, a radial bearing 9, an output shaft end oil sealing device 10, a reducer output shaft 11, a turbine seat frame 12, a stirrer shaft head 13, a coupler 14, a turbine seat frame 15, an oil thrower 16, a high-speed reducer 17, a reducer input shaft 18, a vibration measuring device 19, an input shaft end oil sealing 20, a turning gear device 21, a turbine shaft sealing device 22, a cylinder bracket 23 and a turbine impeller 24
Detailed Description
The invention will now be further described by way of example with reference to the accompanying drawings
Example 1
The embodiment shown in figure 1 describes a vertical drive special purpose steam turbine, which is characterized in that a steam turbine unit is directly arranged on the top of a fermentation tank through a steam turbine seat frame (12), and a speed reducer output shaft (11) and a stirrer shaft head (13) form a semi-rigid connection capable of transmitting axial force through a coupler (14); the high-speed reducer (17) is fixed on a turbine seat frame (12), a turbine impeller (24) is arranged on an input shaft (18) of the reducer to form a turbine rotating part, and the exhaust cylinder (2), the nozzle group (4) and the steam chamber (5) form a turbine stator part.
In the vertical drive special-purpose steam turbine described in the example, an output shaft end oil sealing device (10) is arranged at the output shaft (11) end of the speed reducer, leaked lubricating oil is thrown away from a main shaft by a lubricating oil thrower (16) and flows into an oil collecting chamber below for recovery, an input shaft end oil seal (20) is positioned at the input end of a high-speed shaft of the speed reducer and adopts an oil blocking type seal. An axial positioning mechanism and a vertical key torque mechanism are arranged between the turbine impeller (24) and the input shaft (18) of the speed reducer, and the rotating part of the turbine is axially and radially positioned through a combined bearing (7) and a radial bearing (9) in the speed reducer to form a cantilever type structure. The stability of the rotor is enhanced along with the increase of the rotating speed due to the gyro effect in the operation of the cantilever vertical structure design; the application of the reduction gearbox not only reduces the volume of the steam turbine, but also further simplifies the structure of the steam turbine and meets the requirements of various equipment with different rotating speeds.
The vertical drive special purpose steam turbine described in the embodiment is mainly characterized in that an input shaft (18) of the speed reducer is simultaneously used as a high-speed gear shaft of the speed reducer and shared with a main shaft of the steam turbine, a rotating speed probe is arranged at a speed measuring device (8), a detection tooth is arranged on a corresponding shaft, a vibration measuring probe is arranged at a vibration measuring device (19), a detection surface is arranged on the corresponding shaft, and a turning hole is arranged at a turning device (21). Exhaust casing (2) and steam chamber (5) are fixed in the speed reducer through cylinder support (23) on, adjust the upper and lower position of steam chamber (5) and then adjust nozzle group (4) and turn to the sound clearance of guide vane ring (3) and steam turbine impeller (24) through the adjusting shim, be equipped with steam turbine shaft seal device (22) between steam chamber (5) and speed reducer input shaft (18) and form effectual sealed effect.
The high-speed reducer (17) of the vertical drive special-purpose steam turbine is fixed on a steam turbine seat frame (15) through an adjusting sizing block, the level of the reducer is adjusted to further adjust the distance between an output shaft (11) of the reducer and a shaft head (13) of a stirrer, a steam inlet provided with an upward steam inlet and arranged at the lower part of a steam chamber (5) is connected with a steam inlet flange (6) and a steam inlet steam pipeline, and a steam exhaust cylinder (2) provided with a vertical upward steam outlet and arranged with a steam exhaust flange (1) and connected with a steam exhaust steam pipeline. In order to meet the reasonable flow direction of steam, the steam exhaust cylinder adopts an upward steam exhaust structure, so that the resistance of the steam is reduced, meanwhile, the upward steam exhaust can increase the overhaul visual area, and convenience is brought to a user in the arrangement of a steam exhaust pipeline.
Claims (4)
1. A vertical drive special purpose steam turbine is characterized in that a steam turbine unit is directly arranged at the top of a fermentation tank through a steam turbine seat frame (12), and a speed reducer output shaft (11) and a stirrer shaft head (13) form semi-rigid connection capable of transmitting axial force through a coupler (14); the high-speed reducer (17) is fixed on a turbine seat frame (12), a turbine impeller (24) is arranged on an input shaft (18) of the reducer to form a turbine rotating part, and the exhaust cylinder (2), the nozzle group (4) and the steam chamber (5) form a turbine stator part.
2. The vertical drive special purpose steam turbine according to claim 1, characterized in that an output shaft end oil sealing device (10) is arranged at the end of the reducer output shaft (11), the bearing lubricating oil of the reducer output shaft end throws the leaked lubricating oil away from the main shaft through an oil thrower (16) and flows into a lower oil collecting chamber for recovery, an input shaft end oil sealing (20) is arranged at the input end of the high-speed shaft of the reducer and adopts oil blocking type sealing, an axial positioning mechanism and a vertical key torque mechanism are arranged between the turbine impeller (24) and the reducer input shaft (18), and the rotating part of the steam turbine is axially and radially positioned through a combined bearing (7) and a radial bearing (9) in the reduction gearbox to form a cantilever type structure.
3. The vertical drive special purpose steam turbine according to claims 1 to 2, characterized in that the reducer input shaft (18) is used as a reducer high speed gear shaft and is shared with a steam turbine main shaft, a speed measuring device (8) is provided with a rotating speed probe, a corresponding shaft is provided with a detecting tooth, a vibration measuring device (19) is provided with a vibration measuring probe, a corresponding shaft is provided with a detecting surface, a barring hole is arranged at a barring device (21), the exhaust cylinder (2) and the steam chamber (5) are fixed on the reducer through a cylinder bracket (23), the up-down position of the steam chamber (5) is adjusted through adjusting a gasket so as to adjust the moving and static gaps between the nozzle group (4) and the turning guide vane ring (3) and the steam turbine impeller (24), and a steam turbine shaft sealing device (22) is arranged between the steam chamber (5) and the reducer input shaft (18) to form an effective sealing effect.
4. The vertical drive special purpose steam turbine according to claims 1 to 3, characterized in that the high speed reducer (17) is fixed to the steam turbine frame (15) by adjusting the sizing block, the level of the reducer is adjusted to adjust the distance between the reducer output shaft (11) and the agitator shaft head (13), the steam chamber (5) has an upward steam inlet equipped with a steam inlet flange (6) at the lower part thereof for connecting with the steam inlet steam pipe, and the steam exhaust cylinder (2) has a vertical upward steam outlet equipped with a steam exhaust flange (1) for connecting with the steam exhaust steam pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939472.9A CN112145239A (en) | 2020-09-09 | 2020-09-09 | Vertical driving special purpose steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939472.9A CN112145239A (en) | 2020-09-09 | 2020-09-09 | Vertical driving special purpose steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145239A true CN112145239A (en) | 2020-12-29 |
Family
ID=73889897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010939472.9A Pending CN112145239A (en) | 2020-09-09 | 2020-09-09 | Vertical driving special purpose steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2768431C1 (en) * | 2021-04-29 | 2022-03-24 | Владимир Викторович Михайлов | Turbocharger system and method for its operation |
-
2020
- 2020-09-09 CN CN202010939472.9A patent/CN112145239A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2768431C1 (en) * | 2021-04-29 | 2022-03-24 | Владимир Викторович Михайлов | Turbocharger system and method for its operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201229 |
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| WD01 | Invention patent application deemed withdrawn after publication |