CN105673093A - Efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine - Google Patents
Efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine Download PDFInfo
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- CN105673093A CN105673093A CN201610072630.9A CN201610072630A CN105673093A CN 105673093 A CN105673093 A CN 105673093A CN 201610072630 A CN201610072630 A CN 201610072630A CN 105673093 A CN105673093 A CN 105673093A
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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
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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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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Abstract
The invention relates to relates to a steam turbine, in particular to an efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine. The efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine aims at adapting to the development requirements of current inland electricity market technologies. An ultrahigh pressure cylinder, a high pressure cylinder, an intermediate pressure cylinder and a lower pressure cylinder of the turbine are arranged coaxially, the adjusting end of the ultrahigh pressure cylinder is connected with a first bearing box, and the electric end of the ultrahigh pressure cylinder is connected with a second bearing box; the adjusting end of the high pressure cylinder is connected with the second bearing box, and the electric end of the high pressure cylinder is connected with a third bearing box; the adjusting end of the intermediate pressure cylinder is connected with the third bearing box, and the electric end of the intermediate pressure cylinder is connected with a fourth bearing box; and the lower pressure cylinder is of a floor structure, back flow arrangement is adopted in the ultrahigh pressure cylinder, positive flow arrangement is adopted in the high pressure cylinder, and double split flow arrangement is adopted in the intermediate pressure cylinder and the lower pressure cylinder. The efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine can meet the conditions that the main steam pressure is 35 Mpa, the main steam temperature is 700 DEG C, the reheating steam temperature is 720 DEG C, and the unit capacity is in a 600 MW stage, and the efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine can adapt to the development requirements of the current inland electricity market technologies.
Description
Technical field
The present invention relates to a kind of steam turbine.
Background technology
The core of new round clean combustion of coal generation technology development is the process carried forward vigorously and improve unit cost performance technical development, and exploitation has the power generating equipment of the market competitiveness, high performance-price ratio. Prime mover that steam turbine is changed as high temperature, high pressure, high rotating speed and Large Copacity energy, the high performance-price ratio of product is the comprehensive embodiment of the technology such as designing technique, manufacturing process and optimization of Thermal System. The technology improving cost performance relates to raising steam parameter, flow passage component Automatic Optimal Design technology, structure optimization, cold end optimization, thermodynamic cycle and the technical field such as system optimization, Advanced Manufacturing Technology. The degree of depth of these art and level determine height and the market competitiveness of a new generation's steam turbine property level.
Summary of the invention
The invention aims to adapt to the growth requirement of Present Domestic electricity market technology, it is provided that a kind of efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines.
Efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines of one of the present invention include 6, No. 3 bearing housings of 5, No. 2 bearing housings of 4, No. 1 bearing housing of 3, low pressure (LP) cylinder of 2, intermediate pressure cylinder of 1, high pressure cylinder of a ultra-high pressure cylinder, 8, No. 5 bearing housings 9 of 7, No. 4 bearing housings and communicating pipe 16;
Ultra-high pressure cylinder 1, high pressure cylinder 2, intermediate pressure cylinder 3 and low pressure (LP) cylinder 4 are coaxially arranged, the tune end of ultra-high pressure cylinder 1 and No. 1 bearing housing 5 are connected by push-pull device at fixed, the electric end of ultra-high pressure cylinder 1 and No. 2 bearing housings 6 are connected by push-pull device at fixed, the tune end of high pressure cylinder 2 and No. 2 bearing housings 6 are connected by push-pull device at fixed, the electric end of high pressure cylinder 2 and No. 3 bearing housings 7 are connected by push-pull device at fixed, the tune end of intermediate pressure cylinder 3 and No. 3 bearing housings 7 are connected by push-pull device at fixed, the electric end of intermediate pressure cylinder 3 and No. 4 bearing housings 8 are connected by push-pull device at fixed, adopt between intermediate pressure cylinder 3 with low pressure (LP) cylinder 4 and be connected communicating pipe 16, low pressure (LP) cylinder 4 adopts and lands structure, low pressure (LP) cylinder 4 is arranged between No. 4 bearing housings 8 and No. 5 bearing housings 9,
Ultra-high pressure cylinder 1 adopts reflux to arrange, high pressure cylinder 2 adopts positive flow arrangement, intermediate pressure cylinder 3 and low pressure (LP) cylinder 4 all to adopt double split flow to arrange;
No. 1 supertension main vapour adjustment union valve 10 and No. 2 main vapour of supertension regulate union valve 11 and lay respectively at the both sides of ultra-high pressure cylinder 1, and No. 1 supertension main vapour adjustment union valve 10 and No. 2 main vapour adjustment union valves 11 of supertension all adopt and are connected with ultra-high pressure cylinder 1 without steam guiding tube attachment structure; No. 1 high pressure main vapour adjustment union valve 12 and No. 2 main vapour of high pressure regulate union valve 13 and lay respectively at the both sides of high pressure cylinder 2, and No. 1 high pressure main vapour adjustment union valve 12 and No. 2 main vapour adjustment union valves 13 of high pressure all adopt and are connected with high pressure cylinder 2 without steam guiding tube attachment structure; No. 1 is pressed main vapour regulate union valve 14 and No. 2 to be pressed main vapour regulate union valve 15 to lay respectively at the both sides of intermediate pressure cylinder 3, and No. 1 is pressed main vapour regulate union valve 14 and No. 2 to be pressed main vapour regulate union valve 15 all to adopt and be connected with intermediate pressure cylinder 3 without steam guiding tube attachment structure.
The present invention has innovated from following four aspect:
(1) unit is main steam pressure 35Mpa, main steam temperature 700 DEG C, the ultra supercritical that reheat steam temperature is 720 DEG C: the ultra-high pressure cylinder 1 of above-mentioned steam turbine, high pressure cylinder 2, intermediate pressure cylinder 3 adopt suitable wall thickness and material, can meet the requirement of above-mentioned parameter;
(2) main steam pressure 35Mpa, main steam temperature 700 DEG C, a resuperheat type of reheat steam temperature 720 DEG C, the overall investment of more enough reduction Future Power Plant, reduces system and controls difficulty, improve power plant's safety in operation, it is easier to popularization and application;
(3) unit adopts ultra-high pressure cylinder 1, high pressure cylinder 2, intermediate pressure cylinder 3 and low pressure (LP) cylinder 4 coaxially arranged, and supertension, high pressure, middle pressure adopt a point cylinder to be designed to more reasonably increase the total progression of unit, it is possible to improve the operational efficiency of unit better. Meanwhile, unit adopts coaxially arranged, and axle system security and stability is higher;
(4) unit supertension, high pressure cylinder all adopt tangential spiral case to enter vapour, and aeroperformance is excellent, and crushing is little, and rated load economy is excellent;
(5) unit adopts the design of little enthalpy drop, many progression reactionary style, it is possible to give full play to the parameter advantage of main steam pressure 35Mpa, main steam temperature 700 DEG C, reheat steam temperature 720 DEG C;
(6) low pressure (LP) cylinder adopts double split flow, two steam exhaust structures, and low-pressure last stage blade adopts 1220mm exhaust stage blade, and leaving area is big, and safety and economic benefit is high;
(7) low pressure (LP) cylinder bearing housing adopts and lands structure, and set steady is high, it is possible to adapt to economy requirement.
Efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines of one of the present invention adopt ultra supercritical steam inlet condition, its main steam pressure meets 35Mpa, main steam temperature meets 700 DEG C, reheat steam temperature meets 720 DEG C, unit capacity reaches 600MW grade, economic performance promotes to some extent, it is possible to adapt to the growth requirement of Present Domestic electricity market technology.
Cylinder structure of the present invention is advanced, complete machine is arranged succinct, generatine set heat efficiency is high, economy by meeting 28Mpa than main steam pressure on domestic market, main steam temperature meet 600 DEG C, reheat steam temperature meet 620 DEG C, the equivalent capability unit of back pressure 4.9KPa improve about 250KJ/KW.h, consider from energy-saving and environmental protection and cost of investment angle, be highly suitable for the construction of high-power group entry.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines described in embodiment one;
Fig. 2 is the top view of Fig. 1.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines of one described in present embodiment include 6, No. 3 bearing housings of 5, No. 2 bearing housings of 4, No. 1 bearing housing of 3, low pressure (LP) cylinder of 2, intermediate pressure cylinder of 1, high pressure cylinder of a ultra-high pressure cylinder, 8, No. 5 bearing housings 9 of 7, No. 4 bearing housings and communicating pipe 16;
Ultra-high pressure cylinder 1, high pressure cylinder 2, intermediate pressure cylinder 3 and low pressure (LP) cylinder 4 are coaxially arranged, the tune end of ultra-high pressure cylinder 1 and No. 1 bearing housing 5 are connected by push-pull device at fixed, the electric end of ultra-high pressure cylinder 1 and No. 2 bearing housings 6 are connected by push-pull device at fixed, the tune end of high pressure cylinder 2 and No. 2 bearing housings 6 are connected by push-pull device at fixed, the electric end of high pressure cylinder 2 and No. 3 bearing housings 7 are connected by push-pull device at fixed, the tune end of intermediate pressure cylinder 3 and No. 3 bearing housings 7 are connected by push-pull device at fixed, the electric end of intermediate pressure cylinder 3 and No. 4 bearing housings 8 are connected by push-pull device at fixed, adopt between intermediate pressure cylinder 3 with low pressure (LP) cylinder 4 and be connected communicating pipe, low pressure (LP) cylinder 4 adopts and lands structure, low pressure (LP) cylinder 4 is arranged between No. 4 bearing housings 8 and No. 5 bearing housings 9,
Ultra-high pressure cylinder 1 adopts reflux to arrange, high pressure cylinder 2 adopts positive flow arrangement, intermediate pressure cylinder 3 and low pressure (LP) cylinder 4 all to adopt double split flow to arrange;
No. 1 supertension main vapour adjustment union valve 10 and No. 2 main vapour of supertension regulate union valve 11 and lay respectively at the both sides of ultra-high pressure cylinder 1, and No. 1 supertension main vapour adjustment union valve 10 and No. 2 main vapour adjustment union valves 11 of supertension all adopt and are connected with ultra-high pressure cylinder 1 without steam guiding tube attachment structure; No. 1 high pressure main vapour adjustment union valve 12 and No. 2 main vapour of high pressure regulate union valve 13 and lay respectively at the both sides of high pressure cylinder 2, and No. 1 high pressure main vapour adjustment union valve 12 and No. 2 main vapour adjustment union valves 13 of high pressure all adopt and are connected with high pressure cylinder 2 without steam guiding tube attachment structure; No. 1 is pressed main vapour regulate union valve 14 and No. 2 to be pressed main vapour regulate union valve 15 to lay respectively at the both sides of intermediate pressure cylinder 3, and No. 1 is pressed main vapour regulate union valve 14 and No. 2 to be pressed main vapour regulate union valve 15 all to adopt and be connected with intermediate pressure cylinder 3 without steam guiding tube attachment structure.
No. 1 supertension main vapour adjustment union valve 10 and No. 2 main vapour of supertension regulate union valves 11 and are directly connected to each through flange and ultra-high pressure cylinder 1; No. 1 main vapour of high pressure regulates to be provided with between union valve 12 and high pressure cylinder 2 and is connected short tube, connect short tube to be connected with No. 1 main vapour adjustment union valve 12 of high pressure and high pressure cylinder 2 by flange, No. 2 main vapour of high pressure regulate and are also equipped with being connected short tube between union valve 13 and high pressure cylinder 2, connect short tube and are connected with No. 2 main vapour adjustment union valves 13 of high pressure and high pressure cylinder 2 by flange; Pressing main vapour to regulate in No. 1 presses main vapour adjustment union valve 15 to be connected with intermediate pressure cylinder 3 each through welding manner in union valve 14 and No. 2. The wall thickness of each union valve need to adopt suitable material and thickness, to adapt to the service condition of main steam pressure 35Mpa, main steam temperature 700 DEG C, 720 DEG C of ultra supercriticals of reheat steam temperature.
Detailed description of the invention two: present embodiment is described in conjunction with Fig. 1, present embodiment is the further restriction to a kind of efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines described in embodiment one, in present embodiment, the beam push-pull mechanism that centers all is adopted to be connected between ultra-high pressure cylinder 1 with No. 1 bearing housing 5 and No. 2 bearing housings 6, all adopt the beam push-pull mechanism that centers to be connected between high pressure cylinder 2 with No. 2 bearing housings 6 and No. 3 bearing housings 7, between intermediate pressure cylinder 3 with No. 3 bearing housings 7 and No. 4 bearing housings 8, all adopt the beam push-pull mechanism that centers to be connected.
Detailed description of the invention three: present embodiment is described in conjunction with Fig. 1, present embodiment is the further restriction to a kind of efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines described in embodiment three, in present embodiment, described steam turbine also includes barring gear 17, and described barring gear 17 is arranged on No. 5 bearing housings 9.
This barring gear disclosure satisfy that unit opens, low-speed discs moves whole axle system in stopping process, to ensure the operation safety of unit axle journal and bearing shell.
Claims (3)
1. efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines, it is characterized in that, this steam turbine includes a ultra-high pressure cylinder (1), one high pressure cylinder (2), one intermediate pressure cylinder (3), one low pressure (LP) cylinder (4), No. 1 bearing housing (5), No. 2 bearing housings (6), No. 3 bearing housings (7), No. 4 bearing housings (8), No. 5 bearing housings (9), communicating pipe (16), No. 1 main vapour of supertension regulates union valve (10), No. 2 main vapour of supertension regulate union valve (11), No. 1 main vapour of high pressure regulates union valve (12), No. 2 main vapour of high pressure regulate union valve (13), pressing main vapour to regulate in No. 1 presses main vapour to regulate union valve (15) in union valve (14) and No. 2,
Ultra-high pressure cylinder (1), high pressure cylinder (2), intermediate pressure cylinder (3) and low pressure (LP) cylinder (4) are coaxially arranged, tune end and No. 1 bearing housing (5) of ultra-high pressure cylinder (1) are connected by push-pull device at fixed, electric end and No. 2 bearing housings (6) of ultra-high pressure cylinder (1) are connected by push-pull device at fixed, tune end and No. 2 bearing housings (6) of high pressure cylinder (2) are connected by push-pull device at fixed, electric end and No. 3 bearing housings (7) of high pressure cylinder (2) are connected by push-pull device at fixed, tune end and No. 3 bearing housings (7) of intermediate pressure cylinder (3) are connected by push-pull device at fixed, electric end and No. 4 bearing housings (8) of intermediate pressure cylinder (3) are connected by push-pull device at fixed, communicating pipe (16) is adopted to be connected between intermediate pressure cylinder (3) with low pressure (LP) cylinder (4), low pressure (LP) cylinder (4) adopts and lands structure, low pressure (LP) cylinder (4) is arranged between No. 4 bearing housings (8) and No. 5 bearing housings (9), ultra-high pressure cylinder (1) adopts reflux to arrange, high pressure cylinder (2) adopts positive flow arrangement, intermediate pressure cylinder (3) and low pressure (LP) cylinder (4) all to adopt double split flow to arrange,
No. 1 supertension main vapour adjustment union valve (10) and No. 2 main vapour of supertension regulate union valve (11) and lay respectively at the both sides of ultra-high pressure cylinder (1), and No. 1 supertension main vapour adjustment union valve (10) and No. 2 main vapour adjustment union valve (11) of supertension all adopt and are connected with ultra-high pressure cylinder (1) without steam guiding tube attachment structure; No. 1 high pressure main vapour adjustment union valve (12) and No. 2 main vapour of high pressure regulate union valve (13) and lay respectively at the both sides of high pressure cylinder (2), and No. 1 high pressure main vapour adjustment union valve (12) and No. 2 main vapour adjustment union valve (13) of high pressure all adopt and are connected with high pressure cylinder (2) without steam guiding tube attachment structure; No. 1 is pressed main vapour regulate union valve (14) and No. 2 to be pressed main vapour regulate union valve (15) to lay respectively at the both sides of intermediate pressure cylinder (3), and No. 1 is pressed main vapour regulate union valve (14) and No. 2 to be pressed main vapour adjustment union valve (15) all adopt to be connected with intermediate pressure cylinder (3) without steam guiding tube attachment structure.
2. efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines of one according to claim 1, it is characterized in that, the beam push-pull mechanism that centers all is adopted to be connected between ultra-high pressure cylinder (1) with No. 1 bearing housing (5) and No. 2 bearing housings (6), all adopt the beam push-pull mechanism that centers to be connected between high pressure cylinder (2) with No. 2 bearing housings (6) and No. 3 bearing housings (7), between intermediate pressure cylinder (3) with No. 3 bearing housings (7) and No. 4 bearing housings (8), all adopt the beam push-pull mechanism that centers to be connected.
3. efficient 700 DEG C of ultra supercritical 600MW grade four cylinder two exhaust turbines of one according to claim 1, it is characterized in that, described steam turbine also includes barring gear (17), and described barring gear (17) is arranged on No. 5 bearing housings (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072630.9A CN105673093A (en) | 2016-02-02 | 2016-02-02 | Efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine |
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| CN201610072630.9A CN105673093A (en) | 2016-02-02 | 2016-02-02 | Efficient 700-DEGC ultra-supercritical 600 MW grade four-cylinder two-steam-discharge turbine |
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| CN105673093A true CN105673093A (en) | 2016-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109162765A (en) * | 2018-08-23 | 2019-01-08 | 哈尔滨汽轮机厂有限责任公司 | A kind of high revolving speed steam turbine of resuperheat of super-pressure 45MW |
| CN112746874A (en) * | 2021-01-20 | 2021-05-04 | 济宁华源热电有限公司 | Three-volute 350MW supercritical steam turbine with low pressure cylinder and zero output |
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| CN109162765A (en) * | 2018-08-23 | 2019-01-08 | 哈尔滨汽轮机厂有限责任公司 | A kind of high revolving speed steam turbine of resuperheat of super-pressure 45MW |
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| CN112746874A (en) * | 2021-01-20 | 2021-05-04 | 济宁华源热电有限公司 | Three-volute 350MW supercritical steam turbine with low pressure cylinder and zero output |
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