CN104061023A - Marine turbine dehumidification device - Google Patents
Marine turbine dehumidification device Download PDFInfo
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- CN104061023A CN104061023A CN201410279172.7A CN201410279172A CN104061023A CN 104061023 A CN104061023 A CN 104061023A CN 201410279172 A CN201410279172 A CN 201410279172A CN 104061023 A CN104061023 A CN 104061023A
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- blade
- movable
- dehumidification
- marine turbine
- stationary blade
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Abstract
The invention discloses a marine turbine dehumidification device, which mainly consists of a stationary blade, a dehumidification movable blade and a water collection chamber. The marine turbine dehumidification device is characterized in that a 40-80mm movable and stationary blade gap structure of 0.3-0.5 relative pitch t/b is adopted on arrangement; the back arc of the movable blade is provided with a water collection tank and a drain hole on the top of a leaf crown; a cylinder is provided with the water collection chamber communicated with the drain hole. The marine turbine dehumidification device disclosed by the invention has the beneficial effects that the deposition rate of water drops is effectively improved by the small relative pitch, thereby being favorable for improving the dehumidification efficiency; due to the big movable and stationary blade gap, the water drops flying out of the air outlet edge of the stationary blade can be deposited on the position, which is relatively higher than the blade height, of the movable blade, and therefore centrifugal force borne by the water drops is increased; due to the special blade structure, the dehumidification efficiency of the dehumidifier device is greatly improved.
Description
technical field:
The present invention relates to mechanical equipment technical field, refer in particular to a kind of marine turbing dehumidifying stage arrangement.
background technique:
Steam turbine is the external combustion rotary machine that steam thermal energy can be converted into mechanical work, enters after steam turbine from the steam of boiler, passes through successively nozzle and the movable vane of a series of loop configurations, the heat energy of steam is converted into the mechanical energy of turbine rotor rotation.Steam, in steam turbine, carries out transformation of energy by different way, has just formed the steam turbine of different operating principle.
Level: the level of a row nozzle and a row movable vane composition thereafter.
Simple turbine: the steam turbine that only has a level composition.
Multistage turbine: by the multiple grades of steam turbine that form.
Impulse steam turbine: expand in nozzle, do work in movable vane.
Reaction turbine: each expansion 50% in nozzle and movable vane.
What is all operated under wet-steam phase at steam turbine end, and the water droplet in steam can produce erosion attack to blade, shortens unit durability.Existing steam turbine internal moisture removal technology, as outer rim dehumidifying, dehumidification rate is lower, can not protect well final blage to avoid large water droplet erosion.
summary of the invention:
The object of this invention is to provide a kind of marine turbing dehumidifying stage arrangement, solve the lower problem of current steam turbine internal moisture removal technical efficiency, realize and efficiently dehumidify and protect final blage, the object that extends unit durability.
The object of the invention is to realize as follows: a kind of marine turbing dehumidifying stage arrangement, mainly formed by stator blade, the movable vane that dehumidifies, the chamber that catchments, it is characterized in that: the moving-stator blade gap structure that is set up the relative pitch t/b, the 40～80mm that have adopted 0.3～0.5 at cloth; On movable vane back of the body arc, the weep hole of catching tank and integral shroud top is set, on cylinder, is provided with the chamber that catchments, weep hole connected set water chamber.
The invention has the beneficial effects as follows, adopted 0.3～0.5 relative pitch t/b effectively to improve the deposition of water droplet, be conducive to the raising of dehumidification rate; Larger moving-stator blade gap can make the droplet deposition flying out through stator blade lagging edge on the higher position of the relative leaf height of movable vane, increases the suffered centrifugal force of water droplet; Special blade structure has improved the dehumidification rate of dehumidifying stage arrangement greatly.
brief description of the drawings:
Accompanying drawing is structural representation of the present invention.
In figure: stator blade 1, dehumidifying movable vane 2, catch tank 2-1, weep hole 2-2, chamber 3 catchments.
embodiment:
With reference to accompanying drawing, a kind of marine turbing dehumidifying stage arrangement, is mainly made up of stator blade 1, dehumidifying movable vane 2, the chamber 3 that catchments, and it is characterized in that: the moving-stator blade gap structure that is set up the relative pitch t/b, the 40～80mm that have adopted 0.3～0.5 at cloth; On movable vane back of the body arc, the weep hole 2-2 that catches tank 2-1 and integral shroud top is set, on cylinder, is provided with the chamber 3 that catchments, weep hole 2-2 connected set water chamber 3.Less relative pitch can effectively improve the deposition of water droplet, is conducive to the raising of dehumidification rate; Larger moving-stator blade gap can make the droplet deposition flying out through stator blade lagging edge on the higher position of the relative leaf height of movable vane, increases the suffered centrifugal force of water droplet; The weep hole 2-2 that catches tank 2-1 and integral shroud top carrying on the back on arc by movable vane can drain into the moisture that is deposited on movable vane surface the chamber 3 that catchments on cylinder, and then by the hydrophobic condenser that enters, this structure has improved dehumidification rate greatly.
Claims (1)
1. a marine turbing dehumidifying stage arrangement, mainly formed by stator blade (1), dehumidifying movable vane (2), the chamber that catchments (3), it is characterized in that: the moving-stator blade gap structure that is set up the relative pitch t/b, the 40～80mm that have adopted 0.3～0.5 at cloth; On movable vane back of the body arc, the weep hole (2-2) of catching tank (2-1) and integral shroud top is set, on cylinder, is provided with the chamber that catchments (3), weep hole (2-2) connected set water chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279172.7A CN104061023A (en) | 2014-06-23 | 2014-06-23 | Marine turbine dehumidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279172.7A CN104061023A (en) | 2014-06-23 | 2014-06-23 | Marine turbine dehumidification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104061023A true CN104061023A (en) | 2014-09-24 |
Family
ID=51548930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279172.7A Pending CN104061023A (en) | 2014-06-23 | 2014-06-23 | Marine turbine dehumidification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104061023A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725125A (en) * | 2017-12-06 | 2018-02-23 | 中国船舶重工集团公司第七0三研究所 | A kind of drawing-in type of high-power saturation steam turbine strengthens dehumidification structure |
| CN110043336A (en) * | 2019-05-21 | 2019-07-23 | 中国船舶重工集团公司第七0三研究所 | A kind of ocean movable type nuclear steam turbine outer rim dehumidification device |
| CN114704339A (en) * | 2022-03-09 | 2022-07-05 | 中国船舶重工集团公司第七0三研究所 | Beryllium point type dehumidifying device |
Citations (7)
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|---|---|---|---|---|
| US3724967A (en) * | 1971-10-28 | 1973-04-03 | Westinghouse Electric Corp | Moisture removal device for a steam turbine |
| JPS6131602A (en) * | 1984-07-24 | 1986-02-14 | Mitsubishi Heavy Ind Ltd | Stepped structure in steam turbine |
| JPH06173607A (en) * | 1992-12-04 | 1994-06-21 | Toshiba Corp | Corrosion preventive device for steam turbine blade |
| JP2009138540A (en) * | 2007-12-04 | 2009-06-25 | Toshiba Corp | Steam turbine and moisture removing structure for steam turbine stage |
| CN102472116A (en) * | 2009-07-14 | 2012-05-23 | 株式会社东芝 | Steam turbine |
| US20130189077A1 (en) * | 2012-01-19 | 2013-07-25 | Kabushiki Kaisha Toshiba | Steam turbine and blade for steam turbine |
| CN203879553U (en) * | 2014-06-23 | 2014-10-15 | 中国船舶重工集团公司第七�三研究所 | Dehumidification stage device of marine steam turbine |
-
2014
- 2014-06-23 CN CN201410279172.7A patent/CN104061023A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3724967A (en) * | 1971-10-28 | 1973-04-03 | Westinghouse Electric Corp | Moisture removal device for a steam turbine |
| JPS6131602A (en) * | 1984-07-24 | 1986-02-14 | Mitsubishi Heavy Ind Ltd | Stepped structure in steam turbine |
| JPH06173607A (en) * | 1992-12-04 | 1994-06-21 | Toshiba Corp | Corrosion preventive device for steam turbine blade |
| JP2009138540A (en) * | 2007-12-04 | 2009-06-25 | Toshiba Corp | Steam turbine and moisture removing structure for steam turbine stage |
| CN102472116A (en) * | 2009-07-14 | 2012-05-23 | 株式会社东芝 | Steam turbine |
| US20130189077A1 (en) * | 2012-01-19 | 2013-07-25 | Kabushiki Kaisha Toshiba | Steam turbine and blade for steam turbine |
| CN203879553U (en) * | 2014-06-23 | 2014-10-15 | 中国船舶重工集团公司第七�三研究所 | Dehumidification stage device of marine steam turbine |
Non-Patent Citations (4)
| Title |
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| 孙先亮，罗春新: "关于在汽轮机通流部分内部的除湿问题", 《热能动力工程》, no. 6, 31 December 1986 (1986-12-31), pages 10 - 19 * |
| 徐连青: "汽轮机内部除湿技术刍议", 《机电信息》, no. 12, 25 December 2012 (2012-12-25), pages 132 - 133 * |
| 李剑钊: "船用汽轮机除湿级带冠叶片振动特性及寿命分析", 《中国优秀博硕士学位论文全文数据库（博士）工程科技Ⅱ辑》, no. 8, 15 December 2005 (2005-12-15), pages 036 - 9 * |
| 苗雨，张宏涛: "某除湿级动叶两相流数值模拟", 《汽轮机技术》, vol. 54, no. 1, 29 February 2012 (2012-02-29), pages 41 - 44 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725125A (en) * | 2017-12-06 | 2018-02-23 | 中国船舶重工集团公司第七0三研究所 | A kind of drawing-in type of high-power saturation steam turbine strengthens dehumidification structure |
| CN107725125B (en) * | 2017-12-06 | 2023-12-08 | 中国船舶重工集团公司第七0三研究所 | Suction type reinforced dehumidification structure of high-power saturated steam turbine |
| CN110043336A (en) * | 2019-05-21 | 2019-07-23 | 中国船舶重工集团公司第七0三研究所 | A kind of ocean movable type nuclear steam turbine outer rim dehumidification device |
| CN114704339A (en) * | 2022-03-09 | 2022-07-05 | 中国船舶重工集团公司第七0三研究所 | Beryllium point type dehumidifying device |
| CN114704339B (en) * | 2022-03-09 | 2023-09-08 | 中国船舶重工集团公司第七0三研究所 | Beryllium tip type dehumidifying device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140924 |