CN2874026Y - Two cylinder ultra super critical air cooling turbine - Google Patents
Two cylinder ultra super critical air cooling turbine Download PDFInfo
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- CN2874026Y CN2874026Y CN 200520022013 CN200520022013U CN2874026Y CN 2874026 Y CN2874026 Y CN 2874026Y CN 200520022013 CN200520022013 CN 200520022013 CN 200520022013 U CN200520022013 U CN 200520022013U CN 2874026 Y CN2874026 Y CN 2874026Y
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Abstract
The utility model relates to a 2-cylinder super super-critical air-cooled turbine and associates with a turbine. The utility model solves the problems associated with prior 4-cylinder super super-critical air-cooled turbine for example long total length, high footprint, and elevated construction cost in a power station. The high/mid-pressure cylinder (1) of the super super-critical air-cooled turbine in the utility model is of a combined structure. Between one end of the super super-critical air-cooled low-pressure cylinder (2) and one end of the high/mid-pressure cylinder (1), a first bearing box (3) is provided. At another end of the super super-critical air-cooled low-pressure cylinder (2), a second bearing box (4) is provided. The super super-critical air-cooled low-pressure cylinder (2), the first bearing box (3) and the second bearing box (4) are floor mounted separately. The utility model is of compact structure, small footprint, and high operation efficiency, can be adaptive to a harsh operation condition using direct air cooled system and indirect air cooled system, and can greatly reduce water consumption, is especially suitable for application in a region lack of water.
Description
Technical field
The utility model relates to a kind of steam turbine, is specifically related to a kind of two cylinder ultra supercritical air cooling turbines.
Background technique
The power station steam turbine of China is mainly subcritical wet cooling gas turbine at present, this steam turbine adopts water cooling mode, need to consume great lot of water resources, thereby this steam turbine is not suitable for using in the water-deficient area, subcritical steam inlet condition has limited the further lifting of turbine efficiency simultaneously.Exist the total length of unit long and patent application publication number is the four cylinder ultra supercritical air cooling turbines of CN1605717A, it is relatively large to take up room, and has increased the construction cost in power station thus.It is estimated that every increase by one linear meter of steam turbine will increase the power plant construction expense of more than one hundred million units.
The model utility content
The purpose of this utility model is to exist the total length of unit long for solving existing four cylinder ultra supercritical air cooling turbines, and it is relatively large to take up room, and has increased a kind of two cylinder ultra supercritical air cooling turbines that the construction cost problem in power station provides thus.It is made up of ultra supercritical air cooling high intermediate pressure cylinder 1, ultra supercritical air cooling low pressure (LP) cylinder 2, clutch shaft bearing case 3, second bearing housing 4; Ultra supercritical air cooling high intermediate pressure cylinder 1 is a cylinder combined structure, be provided with clutch shaft bearing case 3 between one end of one end of ultra supercritical air cooling low pressure (LP) cylinder 2 and ultra supercritical air cooling high intermediate pressure cylinder 1, the other end of ultra supercritical air cooling low pressure (LP) cylinder 2 is provided with second bearing housing 4, and ultra supercritical air cooling low pressure (LP) cylinder 2, clutch shaft bearing case 3 and second bearing housing 4 land alone respectively.
The utlity model has following beneficial effect: one, the utlity model has compact structure, the unit total length is short, floor space is little, operating efficiency is high advantage, can adapt to the abominable operating conditions that adopts direct air cooling system and indirect air cooling system, and can reduce the consumption of water resources significantly, also have the high Economy that is better than subcritical pressure turbine simultaneously, be particularly suitable for using in the water-deficient area.Two, the utility model had both solved the difficulty of water-deficient area cooling water source deficiency, had protected the water resources that reduces day by day again.Three, the utility model is taked cooling air mode, makes to the utlity model has high back pressure, the characteristics that the back pressure excursion is big.Four, ultra supercritical air cooling low pressure (LP) cylinder, clutch shaft bearing seat and second bearing support adopt the arrangement that lands alone, with the variation of avoiding delivery temperature the bearing absolute altitude are affected, and guarantee antiwhip.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model, and Fig. 2 is the structural representation of ultra supercritical air cooling high intermediate pressure cylinder 1, and Fig. 3 is the structural representation of ultra supercritical air cooling low pressure (LP) cylinder 2.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of ultra supercritical air cooling high intermediate pressure cylinder 1, ultra supercritical air cooling low pressure (LP) cylinder 2, clutch shaft bearing case 3, second bearing housing 4; Ultra supercritical air cooling high intermediate pressure cylinder 1 is a cylinder combined structure, be provided with clutch shaft bearing case 3 between one end of one end of ultra supercritical air cooling low pressure (LP) cylinder 2 and ultra supercritical air cooling high intermediate pressure cylinder 1, the other end of ultra supercritical air cooling low pressure (LP) cylinder 2 is provided with second bearing housing 4, and ultra supercritical air cooling low pressure (LP) cylinder 2, clutch shaft bearing case 3 and second bearing housing 4 land alone respectively.
Embodiment two: in conjunction with Fig. 2 present embodiment is described, the ultra supercritical air cooling high intermediate pressure cylinder 1 of present embodiment is made up of high pressure outer shell 1-1, middle pressure thermal shield 1-2, the 1-3 of nozzle box, middle pressure diaphragm housing ring 1-4, end packing 1-5, high pressure rotor 1-6, high-pressure inner cylinder 1-7; High-pressure inner cylinder 1-7 is contained in the high pressure outer shell 1-1, high pressure rotor 1-6 is housed in the high-pressure inner cylinder 1-7 vertically, end packing 1-5 is housed between high pressure outer shell 1-1 and the clutch shaft bearing case 3, the 1-3 of nozzle box is housed in the high-pressure inner cylinder 1-7, press thermal shield 1-2 in being equipped with on the high pressure rotor 1-6 between 1-3 of nozzle box and the middle pressure diaphragm housing ring 1-4, middle pressure diaphragm housing ring 1-4 is fixedlyed connected with high pressure outer shell 1-1.Ultra supercritical air cooling high intermediate pressure cylinder 1 adopts said structure, has compact structure, operating efficiency height, advantage that floor space is little.
Embodiment three: present embodiment is described in conjunction with Fig. 3, the ultra supercritical air cooling low pressure (LP) cylinder 2 of present embodiment is made up of lp outer casing 2-1, low-pressure internal cylinder 2-2, low pressure rotor 2-3, low pressure cylinder end packing 2-4, expansion joint 2-5: low-pressure internal cylinder 2-2 is contained in the lp outer casing 2-1, low pressure rotor 2-3 is housed in the low-pressure internal cylinder 2-2 vertically, low pressure cylinder end packing 2-4 is housed between the lp outer casing 2-1 and second bearing housing 4, is connected by expansion joint 2-5 between low pressure cylinder end packing 2-4 and the lp outer casing 2-1.Ultra supercritical air cooling low pressure (LP) cylinder 2 adopts said structure, can guarantee to have good alignment between low pressure cylinder end packing 2-4 and the low pressure rotor 2-3, avoids impact and rub; Between low pressure cylinder end packing 2-4 and the lp outer casing 2-1 expansion joint 2-5 is set, under the prerequisite that guarantees ultra supercritical air cooling low pressure (LP) cylinder 2 vacuum, can absorbs the displacement that ultra supercritical air cooling low pressure (LP) cylinder 2 expands and causes.
Claims (3)
1, a kind of two cylinder ultra supercritical air cooling turbines, it is made up of ultra supercritical air cooling high intermediate pressure cylinder (1), ultra supercritical air cooling low pressure (LP) cylinder (2), clutch shaft bearing (3), second bearing housing (4); It is characterized in that ultra supercritical air cooling high intermediate pressure cylinder (1) is a cylinder combined structure, be provided with clutch shaft bearing case (3) between one end of one end of ultra supercritical air cooling low pressure (LP) cylinder (2) and ultra supercritical air cooling high intermediate pressure cylinder (1), the other end of ultra supercritical air cooling low pressure (LP) cylinder (2) is provided with second bearing housing (4), and ultra supercritical air cooling low pressure (LP) cylinder (2), clutch shaft bearing case (3) and second bearing housing (4) land alone respectively.
2, two cylinder ultra supercritical air cooling turbines according to claim 1 is characterized in that described ultra supercritical air cooling high intermediate pressure cylinder (1) is made up of high pressure outer shell (1-1), middle pressure thermal shield (1-2), nozzle box (1-3), middle pressure diaphragm housing ring (1-4), end packing (1-5), high pressure rotor (1-6), high-pressure inner cylinder (1-7); High-pressure inner cylinder (1-7) is contained in the high pressure outer shell (1-1), high pressure rotor (1-6) is housed in the high-pressure inner cylinder (1-7) vertically, end packing (1-5) is housed between high pressure outer shell (1-1) and the clutch shaft bearing case (3), nozzle box (1-3) is housed in the high-pressure inner cylinder (1-7), press thermal shield (1-2) in being equipped with on the high pressure rotor (1-6) between nozzle box (1-3) and the middle pressure diaphragm housing ring (1-4), middle pressure diaphragm housing ring (1-4) is fixedlyed connected with high pressure outer shell (1-1).
3, two cylinder ultra supercritical air cooling turbines according to claim 1, it is characterized in that described ultra supercritical air cooling low pressure (LP) cylinder (2) is by lp outer casing (2-1), low-pressure internal cylinder (2-2), low pressure rotor (2-3), low pressure cylinder end packing (2-4), expansion joint (2-5) is formed: low-pressure internal cylinder (2-2) is contained in the lp outer casing (2-1), low pressure rotor (2-3) is housed in the low-pressure internal cylinder (2-2) vertically, between lp outer casing (2-1) and second bearing housing (4) low pressure cylinder end packing (2-4) is housed, is connected by expansion joint (2-5) between low pressure cylinder end packing (2-4) and the lp outer casing (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022013 CN2874026Y (en) | 2005-11-24 | 2005-11-24 | Two cylinder ultra super critical air cooling turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022013 CN2874026Y (en) | 2005-11-24 | 2005-11-24 | Two cylinder ultra super critical air cooling turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874026Y true CN2874026Y (en) | 2007-02-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022013 Expired - Fee Related CN2874026Y (en) | 2005-11-24 | 2005-11-24 | Two cylinder ultra super critical air cooling turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN2874026Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562187A (en) * | 2011-12-21 | 2012-07-11 | 上海发电设备成套设计研究院 | High-and-medium-pressure integrated cylinder for air cooling type high-parameter steam turbine |
| CN102705016A (en) * | 2012-06-21 | 2012-10-03 | 哈尔滨汽轮机厂有限责任公司 | Supercritical 600MW heat supplying extraction steam turbine |
| CN103016076A (en) * | 2012-12-25 | 2013-04-03 | 上海发电设备成套设计研究院 | Intermediate-pressure internal cylinder for high-power air-cooled ultra supercritical steam turbine |
| CN103306756A (en) * | 2013-05-20 | 2013-09-18 | 哈尔滨汽轮机厂有限责任公司 | 350 MW grade supercritical air cooling industrial extraction turbine |
| CN105370330A (en) * | 2015-12-04 | 2016-03-02 | 哈尔滨汽轮机厂有限责任公司 | 660MW-grade primary intermediate reheat extraction steam turbine unit |
| CN105804802A (en) * | 2016-05-18 | 2016-07-27 | 哈尔滨汽轮机厂有限责任公司 | 350 MW supercritical double-cylinder and double-exhaust steam turbine |
| CN106640232A (en) * | 2016-11-29 | 2017-05-10 | 东方电气集团东方汽轮机有限公司 | Medium-pressure interlayer cooling structure of steam turbine |
| CN112664281A (en) * | 2021-01-20 | 2021-04-16 | 济宁华源热电有限公司 | Be used for overcritical 350MW three jar steam turbine middling pressure module |
-
2005
- 2005-11-24 CN CN 200520022013 patent/CN2874026Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562187A (en) * | 2011-12-21 | 2012-07-11 | 上海发电设备成套设计研究院 | High-and-medium-pressure integrated cylinder for air cooling type high-parameter steam turbine |
| CN102705016A (en) * | 2012-06-21 | 2012-10-03 | 哈尔滨汽轮机厂有限责任公司 | Supercritical 600MW heat supplying extraction steam turbine |
| CN103016076A (en) * | 2012-12-25 | 2013-04-03 | 上海发电设备成套设计研究院 | Intermediate-pressure internal cylinder for high-power air-cooled ultra supercritical steam turbine |
| CN103306756A (en) * | 2013-05-20 | 2013-09-18 | 哈尔滨汽轮机厂有限责任公司 | 350 MW grade supercritical air cooling industrial extraction turbine |
| CN105370330A (en) * | 2015-12-04 | 2016-03-02 | 哈尔滨汽轮机厂有限责任公司 | 660MW-grade primary intermediate reheat extraction steam turbine unit |
| CN105804802A (en) * | 2016-05-18 | 2016-07-27 | 哈尔滨汽轮机厂有限责任公司 | 350 MW supercritical double-cylinder and double-exhaust steam turbine |
| CN106640232A (en) * | 2016-11-29 | 2017-05-10 | 东方电气集团东方汽轮机有限公司 | Medium-pressure interlayer cooling structure of steam turbine |
| CN112664281A (en) * | 2021-01-20 | 2021-04-16 | 济宁华源热电有限公司 | Be used for overcritical 350MW three jar steam turbine middling pressure module |
| CN112664281B (en) * | 2021-01-20 | 2024-05-28 | 济宁华源热电有限公司 | Medium-pressure module for supercritical 350MW three-cylinder steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20141124 |
|
| EXPY | Termination of patent right or utility model |