CN101016849A - Diversion device used in turbomachine having adjustable nozzle - Google Patents
Diversion device used in turbomachine having adjustable nozzle Download PDFInfo
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- CN101016849A CN101016849A CN 200710078233 CN200710078233A CN101016849A CN 101016849 A CN101016849 A CN 101016849A CN 200710078233 CN200710078233 CN 200710078233 CN 200710078233 A CN200710078233 A CN 200710078233A CN 101016849 A CN101016849 A CN 101016849A
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- turbine case
- guide device
- flow guide
- turbo machine
- adjustable nozzle
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Abstract
The invention relates to a diverter used in a turbine with adjustable nozzle. The invention is characterized in that the diverter comprises a diverting channel 2 and a positioning tube 3, wherein one end of the positioning tube 3 is connected with a diverting inlet 2a of the diverting channel 2. The invention has simple structure and better anti-leakage function while it can improve the reliability of driving device with nozzle blades used in high temperature.
Description
Technical field
The present invention relates to a kind of leakage preventer that is used to the turbo machine of adjustable nozzle, be specifically related to a kind of water conservancy diversion leakage preventer that is used to the simple turbine of the runoff of adjustable nozzle and mixed flow.
Background technique
At present, be provided with the runoff of adjustable nozzle and the simple turbine of mixed flow, the basic structure of its turbine end comprises: turbine case, be assemblied in the single group band blade turbine in the turbine case, the cartridge housing of fixedlying connected with turbine case, be fixed on cartridge housing and be positioned at the thermal shield of the front end of turbine case, inboard cylndrical surface contacts with thermal shield, and the dividing plate that cylndrical surface, the outside cooperates with the turbine case inner seal, be arranged on the rolling disc between thermal shield outer end step cutting pattern and the turbine case, the hole that one end passes on the thermal shield is placed in the rotation opening of rolling disc, and the other end places the crank of turbo machine outside, be arranged on the plurality of nozzles blade on the jet channel circumference in the turbine case, the axle center of fixedlying connected with nozzle vane, the shift fork that one end in the hole that is provided with on the dividing plate with passing of axle center is fixedlyed connected is fixedlyed connected with rolling disc and is positioned at the driving pin of shift fork mouth.
The subject matter that the turbo machine of this class formation exists for a long time is: it comprises that crank, rolling disc, shift fork etc. all are arranged on by in the ring-shaped cavity that is connected to form between turbine case, cartridge housing, dividing plate and the thermal shield driving mechanism of nozzle vane, turbo machine is in when operation, at the high temperature of turbo-side, pressurized gas by the joint gap between dividing plate and turbine case, the thermal shield to this cavity seepage; And the crank of this driving mechanism must be through on the cartridge housing, or on the turbine case, or turbine case links to each other with external drive source with the opening that the assembling joint of cartridge housing is provided with, from the turbo machine outside nozzle vane is rotated adjustment with convenient, and driving mechanism certainly exists certain clearance in the assembling cooperation of this opening, the waste gas that causes turbo machine in use to have certain energy inevitably will leak out from these gap locations, the one, exhaust gas leakage causes the pollution of the decline environment of waste gas utilization efficiency, the 2nd, cause the driving mechanism temperature drift of the variable-nozzle blade in bearing housing one side and exhaust emission to deposit, influence its operational safety.
In the containment measures that this position of the turbo machine of band adjustable nozzle was adopted in the past, be generally mode by " blocking up " of strengthening mechanical seal, as reduce fit dimension, add with piston ring etc. and seal, these seal arrangements are more effective when the turbine slow-speed of revolution moves, but when high rotating speed poor effect; And this mechanical seal is because the gap of rotating component is little, and driving component is in the environment of high temperature again all the time, thermal distortion occurs easily and the locking phenomenon that causes, thereby cause turbo machine normally not move, also artificial increase number of spare parts and assembling difficulty.
Summary of the invention
The object of the present invention is to provide a kind of simple and reasonablely, anti-leak result is good, and the driving mechanism that can the improve nozzle vane operational safety under hot environment for a long time, is used for the flow guide device of the simple turbine of runoff and mixed flow.
The object of the present invention is achieved like this: a kind of flow guide device that is used to the turbo machine of adjustable nozzle is characterized in that: this flow guide device comprises guide channel and positioning pipe, and an end of wherein said positioning pipe is connected with the water conservancy diversion import of described guide channel.
Above-mentioned flow guide device be arranged on the plurality of nozzles blade on the inboard and jet channel circumference in turbine case in the air outlet of turbine case of turbo machine the driving mechanism place, by between the ring-shaped cavity that is connected to form between turbine case, cartridge housing, dividing plate and the thermal shield.
Above-mentioned guide channel is arranged in the housing of described turbine case, its described water conservancy diversion import is arranged on the outer side wall of jet channel of described turbine case, and its diversion outlet is arranged on the inner surface of described air outlet of described turbine case the trailing edge place near the turbine blade in the described turbine case; One end of described positioning pipe is fixedlyed connected with described water conservancy diversion import screw thread, and the other end passes the hole that is provided with on the described dividing plate fixedlys connected with nut; Part in the jet channel that places described turbine case of described positioning pipe is in the outside of described nozzle vane.
Above-mentioned guide channel can be cylindrical at the outlet section of described diversion outlet, also can be toroidal.
Situations such as concrete structure according to the driving mechanism of the size of turbo machine, nozzle vane, can be between the ring-shaped cavity inboard and described driving mechanism place, that be connected to form between by described turbine case, described cartridge housing, described dividing plate and described thermal shield of the described air outlet of above-mentioned turbine case radially circumference described flow guide device more than 1 is set, also radially circumference evenly setting more than 1 described flow guide device.
The present invention uses aerodynamic principle, center flow velocity according to section waste gas at the beginning of the air outlet of turbine case is very fast, and pressure is lower than the phenomenon of external pressure all around, between the ring-shaped cavity at and driving mechanism place inboard flow guide device is set in the air outlet of turbine case, make in the air outlet of turbine case and to link to each other with external drive source on the cartridge housing that is passed through by the hole of turbine blade trailing edge and driving mechanism, or on the turbine case, or turbine case communicates with the existing clearance channel in hole of the assembling joint of cartridge housing, utilize the ejector action of turbine case air outlet high-speed exhaust gas dexterously, waste gas in the cavity at the driving mechanism place of variable-nozzle blade is taken away, played the effect of the clearance leakage in the hole that prevents that waste gas from using by driving mechanism effectively; Simultaneously because this cavity internal pressure is lower than external pressure, at this moment the outer lower air of ambient temperature of turbo machine can constantly enter cavity by this clearance channel, discharge from the air outlet of turbine case through flow guide device again, played again the long-term work effect that moving driving mechanism cools off of at high temperature not stopping transport, avoided owing to the reason that increases seal arrangement etc. cause the driving mechanism locking may, not needing to increase under the situation of extra component, also improved the operational safety of driving mechanism.
Outlet section at guide channel adopts the toroidal structure, can increase the speed of flow guide device to gas flow guiding.
In sum, of the present inventionly be used to that simple in structure, ingenious rationally anti-leak result is good with the flow guide device of the turbo machine of adjustable nozzle, and can improve the reliability that the driving mechanism of nozzle vane uses for a long time under hot environment.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is the sectional structure schematic representation of the embodiment of the invention;
Fig. 2 is the right TV structure schematic representation of Fig. 1.
Embodiment
Embodiment: referring to Fig. 1, Fig. 2, a kind of flow guide device that is used to the simple turbine of adjustable nozzle, it is characterized in that: this flow guide device comprises guide channel 2 and positioning pipe 3, and an end of wherein said positioning pipe 3 is connected with the water conservancy diversion import 2a of described guide channel 2.
Described flow guide device be arranged on the plurality of nozzles blade 11 on the inboard and jet channel circumference in turbine case 1 of the air outlet 1a of turbine case 1 of turbo machine driving mechanism 10 places, by between the ring-shaped cavity that is connected to form between turbine case 1, cartridge housing 6, dividing plate 4 and the thermal shield 9.
Described guide channel 2 is arranged in the housing of described turbine case 1, its described water conservancy diversion import 2a is arranged on the outer side wall of jet channel of described turbine case 1, and its diversion outlet 2b is arranged on the inner surface of described air outlet 1a of described turbine case 1 the trailing edge 8a place near the turbine blade 8 in the described turbine case 1; One end of described positioning pipe 3 is fixedlyed connected with described water conservancy diversion import 2a screw thread, and the other end passes the hole that is provided with on the described dividing plate 4 fixedlys connected with nut 5; Part in the jet channel that places described turbine case 1 of described positioning pipe 3 is in the outside of described nozzle vane 11.
In the present embodiment, described guide channel 2 is a toroidal at the outlet section of described diversion outlet 2b; Between, the ring-shaped cavity that is connected to form between by described turbine case 1, described cartridge housing 6, described dividing plate 4 and described thermal shield 9 inboard and described driving mechanism 10 places at the described air outlet 1a of described turbine case 1 radially circumference 3 described flow guide devices evenly are set; The fit up gap passage 7 that described driving mechanism 10 links to each other with external drive source is positioned on the described cartridge housing 6.
Claims (8)
1, a kind of flow guide device that is used to the turbo machine of adjustable nozzle is characterized in that: this flow guide device comprises guide channel (2) and positioning pipe (3), and an end of wherein said positioning pipe (3) is connected with the water conservancy diversion import (2a) of described guide channel (2).
2, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 1 is characterized in that: described flow guide device be arranged on the plurality of nozzles blade (11) on the inboard and jet channel circumference in turbine case (1) in the air outlet (1a) of turbine case (1) of turbo machine driving mechanism (10) place, by between the ring-shaped cavity that is connected to form between turbine case (1), cartridge housing (6), dividing plate (4) and the thermal shield (9).
3, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 1 or 2, it is characterized in that: described guide channel (2) is arranged in the housing of described turbine case (1), its described water conservancy diversion import (2a) is arranged on the outer side wall of jet channel of described turbine case (1), and its diversion outlet (2b) is arranged on and locates near the trailing edge (Sa) of the turbine blade (8) in the described turbine case (1) on the inner surface of described air outlet (1a) of described turbine case (1); One end of described positioning pipe (3) is fixedlyed connected with described water conservancy diversion import (2a) screw thread, and the other end passes described dividing plate (4) upward fixedlys connected with nut (5) in the hole of setting; Part in the jet channel that places described turbine case (1) of described positioning pipe (3) is in the outside of described nozzle vane (11).
4, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 3 is characterized in that: the described guide channel (2) of described flow guide device is at the outlet section of described diversion outlet (2b) or for cylindrical or be toroidal.
5, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 2 is characterized in that: between, the ring-shaped cavity that is connected to form between by described turbine case (1), described cartridge housing (6), described dividing plate (4) and described thermal shield (9) inboard and described driving mechanism (10) place in the described air outlet of described turbine case (1) (1a) radially circumference described flow guide device more than 1 is set.
6, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 3 is characterized in that: between, the ring-shaped cavity that is connected to form between by described turbine case (1), described cartridge housing (6), described dividing plate (4) and described thermal shield (9) inboard and described driving mechanism (10) place in the described air outlet of described turbine case (1) (1a) radially circumference described flow guide device more than 1 is set.
7, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 2 is characterized in that: between the ring-shaped cavity inboard and described driving mechanism (10) place, that be connected to form between by described turbine case (1), described cartridge housing (6), described dividing plate (4) and described thermal shield (9) of the described air outlet of described turbine case (1) (1a) radially circumference evenly setting more than 1 described flow guide device.
8, the flow guide device that is used to the turbo machine of adjustable nozzle as claimed in claim 3 is characterized in that: between the ring-shaped cavity inboard and described driving mechanism (10) place, that be connected to form between by described turbine case (1), described cartridge housing (6), described dividing plate (4) and described thermal shield (9) of the described air outlet of described turbine case (1) (1a) radially circumference evenly setting more than 1 described flow guide device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100782333A CN100545424C (en) | 2007-02-15 | 2007-02-15 | A kind of flow guide device that is used to the turbo machine of adjustable nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100782333A CN100545424C (en) | 2007-02-15 | 2007-02-15 | A kind of flow guide device that is used to the turbo machine of adjustable nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101016849A true CN101016849A (en) | 2007-08-15 |
| CN100545424C CN100545424C (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100782333A Active CN100545424C (en) | 2007-02-15 | 2007-02-15 | A kind of flow guide device that is used to the turbo machine of adjustable nozzle |
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| CN (1) | CN100545424C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922345A (en) * | 2009-06-15 | 2010-12-22 | 霍尼韦尔国际公司 | Turbosupercharger with nozzle ring locating pin and integrated locator and thermoscreen |
| CN103582742A (en) * | 2011-06-01 | 2014-02-12 | 涡轮梅坎公司 | Variable-pitch nozzle for a radial flow turbine, in particular for a turbine of an auxiliary power source |
| CN109113814A (en) * | 2018-08-30 | 2019-01-01 | 华电电力科学研究院有限公司 | A kind of low energy damages efficient advanced formula turbine thermoelectricity transmission system and its working method |
-
2007
- 2007-02-15 CN CNB2007100782333A patent/CN100545424C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922345A (en) * | 2009-06-15 | 2010-12-22 | 霍尼韦尔国际公司 | Turbosupercharger with nozzle ring locating pin and integrated locator and thermoscreen |
| CN103582742A (en) * | 2011-06-01 | 2014-02-12 | 涡轮梅坎公司 | Variable-pitch nozzle for a radial flow turbine, in particular for a turbine of an auxiliary power source |
| CN103582742B (en) * | 2011-06-01 | 2016-02-10 | 涡轮梅坎公司 | For radial turbine, especially for the variable-pitch nozzle of auxiliary power source turbine |
| CN109113814A (en) * | 2018-08-30 | 2019-01-01 | 华电电力科学研究院有限公司 | A kind of low energy damages efficient advanced formula turbine thermoelectricity transmission system and its working method |
| CN109113814B (en) * | 2018-08-30 | 2023-12-05 | 华电电力科学研究院有限公司 | Low-energy-loss efficient step-entering turbine thermal power transmission system and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100545424C (en) | 2009-09-30 |
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Owner name: CHONGQING JIANGZENG MACHINERY CO., LTD. Free format text: FORMER OWNER: JIANGJIN SURPERCHARGER FACTORY Effective date: 20080509 |
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Effective date of registration: 20080509 Address after: Postal code No. 402263, Dongfanghong (Industrial Park), Jiangjin District, Chongqing, China Applicant after: Chongqing Jiangzeng Machinery Co., Ltd. Address before: Postcode 1, Dongfanghong street, Jiangjin Tak City, Chongqing, China: 402263 Applicant before: Jiangjin Turbocharger Plant |
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Owner name: CHONGQING JIANGZENG SHIPBUILDING INDUSTRY CO., LTD Free format text: FORMER OWNER: CHONGQING JIANGZENG MACHINERY CO., LTD. Effective date: 20140126 |
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Effective date of registration: 20140126 Address after: 402263 Jiangjin District, Chongqing City Industrial Park, Germany 1-14, No. two C Patentee after: Chongqing Jiangjin Shipbuilding Industry Co., Ltd. Address before: 402263, Jiangjin District, Chongqing, Germany sense of the east red (Industrial Park) No. Patentee before: Chongqing Jiangzeng Machinery Co., Ltd. |