CN112483198A - Subcritical 135MW grade once intermediate reheating reaction type steam turbine - Google Patents
Subcritical 135MW grade once intermediate reheating reaction type steam turbine Download PDFInfo
- Publication number
- CN112483198A CN112483198A CN202011435287.2A CN202011435287A CN112483198A CN 112483198 A CN112483198 A CN 112483198A CN 202011435287 A CN202011435287 A CN 202011435287A CN 112483198 A CN112483198 A CN 112483198A
- Authority
- CN
- China
- Prior art keywords
- bearing
- steam
- low pressure
- subcritical
- pressure cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003303 reheating Methods 0.000 title claims abstract description 12
- 238000006757 chemical reactions by type Methods 0.000 title claims abstract description 11
- 238000000605 extraction Methods 0.000 claims description 21
- 230000003068 static effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
-
- 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
- F01D17/10—Final actuators
-
- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a subcritical 135MW grade primary intermediate reheating reaction type steam turbine, which relates to a 135MW grade steam turbine and aims to solve the problems of low efficiency and low cycle efficiency of the existing 135MW grade steam turbine cylinder, the subcritical 135MW grade steam turbine comprises a high-pressure cylinder, a medium-low pressure cylinder, a front bearing box, a middle bearing box, a rear bearing box, a high-pressure rotor, a medium-low pressure rotor, a first bearing, a second bearing and a third bearing, the high-voltage rotor is characterized in that the middle-low-voltage rotor and the high-voltage rotor are sequentially connected from left to right, a middle-low-voltage cylinder sleeve is arranged on the middle-low-voltage rotor, the high-voltage cylinder sleeve is arranged on the high-voltage rotor, a third bearing is sleeved at the electric end of the middle-low-voltage rotor, a second bearing and a first bearing are respectively sleeved at the electric end and the adjusting end of the high-voltage rotor, the first bearing is positioned in a front bearing box, the second bearing is positioned in a middle bearing box, the third bearing is positioned in a rear bearing box, and the adjusting end and the electric end of the high-voltage cylinder; the adjusting end of the medium and low pressure cylinder is supported on the medium bearing box, and the electric end is supported on the foundation.
Description
Technical Field
The invention relates to a 135MW grade steam turbine, in particular to a subcritical 135MW grade primary intermediate reheating reaction type steam turbine, and relates to the technical field of steam turbines.
Background
The existing 135MW grade steam turbine in China has early forming design, mostly has high-temperature and high-pressure parameters, generally has the problems of low main steam parameters, unreasonable system design and structural design and the like, and has low unit circulation efficiency, high power supply coal consumption, low energy utilization rate and large pollution emission.
Disclosure of Invention
The invention aims to solve the problems of low efficiency and low cycle efficiency of the existing 135MW grade steam turbine cylinder, and further provides a subcritical 135MW grade primary intermediate reheating reaction type steam turbine.
The technical scheme adopted by the invention for solving the problems is as follows:
the high-pressure motor comprises a high-pressure cylinder, a middle-low pressure cylinder, a front bearing box, a middle bearing box, a rear bearing box, a high-pressure rotor, a middle-low pressure rotor, a first bearing, a second bearing and a third bearing, wherein the middle-low pressure rotor and the high-pressure rotor are sequentially connected from left to right; the adjusting end of the medium and low pressure cylinder is supported on the medium bearing box, and the electric end is supported on the foundation.
Furthermore, the bottom of the high-pressure cylinder is provided with a high-pressure steam exhaust port and a first steam extraction port.
Furthermore, the bottom of the medium and low pressure cylinder is provided with an eight steam extraction port, a six steam extraction port, a five steam extraction port, a seven steam extraction port, a three steam extraction port and a four steam extraction port from left to right in sequence.
Further, subcritical 135MW grade is reheat reaction type steam turbine in middle of still includes high pressure main vapour and adjusts the combination valve once, and high pressure main vapour adjusts the combination valve and sets up on the right side of high pressure cylinder, and is located main steam pipeline, and high pressure main vapour adjusts the valve casing of combination valve and high pressure cylinder and uses flange bolt lug connection.
Furthermore, the subcritical 135MW grade single intermediate reheat reaction type steam turbine further comprises two reheat main steam adjusting combined valves, the two reheat main steam adjusting combined valves are respectively located on the left side and the right side of the medium-low pressure cylinder, and the two reheat main steam adjusting combined valves are respectively connected with the reheat steam pipeline of the medium-low pressure cylinder.
Furthermore, all the movable and static blades of the high-pressure part adopt an assembly type structure, and all the movable and static blades of the middle-low pressure part except the last two stages of static blades also adopt the assembly type structure.
The invention has the beneficial effects that:
1. the main steam parameters of the unit are improved to 16.7MPa and 566 ℃, and the circulation efficiency is fundamentally improved;
2. the high-pressure module and the medium-pressure module of the unit are designed in a cylinder-separated manner, the high-pressure through-flow length is not limited by the bearing span, the optimized setting of the number of stages can be achieved, and higher cylinder efficiency is obtained;
3. the unit adopts full-cycle steam admission, the high-pressure main steam adjusting combined valve is directly connected with the cylinder, and the design of no adjusting stage is adopted, so that the steam admission loss is reduced to the maximum extent, and the enthalpy drop of the unit is distributed on the reaction pressure level with small enthalpy drop, so that higher stage efficiency can be obtained;
4. all the movable and fixed blades of high pressure adopt an assembly type structure, and compared with the traditional welding clapboard, the assembly type structure has no welding line, thereby avoiding welding deformation and better ensuring through-flow precision;
5. the middle-low pressure part is designed to be of a cylinder closing structure, steam is exhausted from the single side downwards, meanwhile, the high-pressure rotor and the middle-low pressure rotor adopt a 3-bearing supporting mode, the length of the unit is shortened to the maximum extent on the premise that the unit is high in circulation efficiency and safety, the occupied area of the unit is reduced, the space is saved, and the construction cost of a power plant is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural diagram of a high-pressure main steam combination valve;
FIG. 4 is a schematic diagram of a reheat main steam governor combination valve.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1, and includes a high-pressure cylinder 1, a medium-low pressure cylinder 2, a front bearing box 3, a middle bearing box 4, a rear bearing box 5, a high-pressure rotor 8, a medium-low pressure rotor 9, a first bearing 10, a second bearing 11 and a third bearing 12, where the medium-low pressure rotor 9 and the high-pressure rotor 8 are connected in sequence from left to right, the medium-low pressure cylinder 2 is sleeved on the medium-low pressure rotor 9, the high-pressure cylinder 1 is sleeved on the high-pressure rotor 8, an electrical end of the medium-low pressure rotor 9 is sleeved with the third bearing 12, an electrical end and an adjusting end of the high-pressure rotor 8 are respectively sleeved with the second bearing 11 and the first bearing 10, the first bearing 10 is located in the front bearing box 3, the second bearing 11 is located in the middle bearing box 4, the third bearing 12 is located in the rear bearing box 5, and the adjusting end and the electrical end of the high-pressure; the adjusting end of the medium and low pressure cylinder 2 is supported on the medium bearing box 4, and the electric end is supported on the foundation.
The front bearing box 3, the middle bearing box 4 and the rear bearing box 5 are arranged on the base frame by adopting a floor structure, the adjusting end and the electric end of the high-pressure cylinder 1 are respectively supported on the front bearing box 3 and the middle bearing box 4 through lower claws, and the middle and low-pressure rotor 9 and the high-pressure rotor 8 are connected together through a coupling bolt; the high-pressure rotor 8 and the middle-low pressure rotor 9 are integrally forged rotors, the high-temperature section and the low-temperature section of the middle-low pressure rotor 9 are tightened by bolts, and the front section and the rear section have different mechanical properties, so that the high-temperature strength requirement of the high-temperature section is met, and the high-strength and low-brittleness transition temperature value performance of the low-temperature section is also met.
The lower half parts of the high pressure cylinder 1 and the medium and low pressure cylinder 2 are provided with centering beams, and the centering beams and the medium bearing box 4 form a push-pull rod mechanism.
The high-pressure cylinder 1 of the embodiment adopts a double-layer cylinder structure so as to adapt to the characteristics of the high-temperature working environment of the unit and ensure good strength, good rigidity and small thermal stress of the cylinder body. The inner cylinder and the outer cylinder of the high-pressure cylinder 1 are both cast, the horizontal split surfaces of the upper cylinder and the lower cylinder are of high-narrow flange structures, and the high-narrow flange structures are connected through bolts so as to meet the requirement of quick start of a unit.
In the embodiment, the low-pressure cylinder 2 adopts a double-layer cylinder structure, the joints of all parts of the outer cylinder are in a vertical flange surface structure, the bolts are connected with the vertical flange surface structure, and the inner cylinder is integrally cast, so that the absolute expansion of the whole outer cylinder is reduced.
The second embodiment is as follows: referring to fig. 1, the present embodiment will be described, wherein a high pressure steam outlet 1-1 and a first steam extraction port 1-2 are provided at the bottom of a high pressure cylinder 1 according to the present embodiment.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1, and in the embodiment, the bottom of the medium and low pressure cylinder 2 is provided with an eighth steam extraction port 2-1, a sixth steam extraction port 2-2, a fifth steam extraction port 2-3, a seventh steam extraction port 2-4, a third steam extraction port 2-5 and a fourth steam extraction port 2-6 in sequence from left to right.
Other components are connected in the same manner as in the first or second embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1, and the subcritical 135MW grade single intermediate reheat reaction steam turbine according to the embodiment further includes a high-pressure main steam regulating combined valve 6, the high-pressure main steam regulating combined valve 6 is disposed on the right side of the high-pressure cylinder 1 and is located on the main steam pipeline, and a valve casing of the high-pressure main steam regulating combined valve 6 is directly connected with the high-pressure cylinder 1 through a flange bolt.
The high-pressure main steam regulating combined valve 6 further comprises a steam supplementing valve structure which is connected to the high-pressure cylinder 1 in front of the eighth stage through a steam supplementing guide pipe and supplements main steam flow for the unit regulating valve under the full-open working condition.
Other components and connection relationships are the same as those in the first, second or third embodiment.
The fifth concrete implementation mode: this embodiment is described with reference to fig. 1, and: the subcritical 135MW grade single intermediate reheat reaction type steam turbine further comprises two reheat main steam adjusting combined valves 7, the two reheat main steam adjusting combined valves 7 are respectively located on the left side and the right side of the middle and low pressure cylinder 2, and the two reheat main steam adjusting combined valves 7 are respectively connected with a reheat steam pipeline of the middle and low pressure cylinder 2.
Other components and connections are the same as those of the first, second, third or fourth embodiments.
The sixth specific implementation mode: in the present embodiment, all the moving and stationary blades in the high-pressure portion are fabricated, and all the moving and stationary blades in the low-pressure portion are fabricated except for the last two stages of stationary blades, as described above with reference to fig. 1.
All the moving and static blades of the high-pressure part and the rest moving and static blades of the middle-low pressure part except the last two stages of static blades are all in an assembled structure. Compared with the existing welding partition plate, the assembly type structure has no welding line, avoids welding deformation and better ensures the through-flow precision.
Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A subcritical 135MW grade primary intermediate reheating reaction type steam turbine comprises a high-pressure cylinder (1), a medium-low pressure cylinder (2), a front bearing box (3), a medium bearing box (4), a rear bearing box (5), a high-pressure rotor (8), a medium-low pressure rotor (9), a first bearing (10), a second bearing (11) and a third bearing (12),
the method is characterized in that: the middle-low pressure rotor (9) and the high pressure rotor (8) are sequentially connected from left to right, the middle-low pressure cylinder (2) is sleeved on the middle-low pressure rotor (9), the high pressure cylinder (1) is sleeved on the high pressure rotor (8), a third bearing (12) is sleeved at the electric end of the middle-low pressure rotor (9), a second bearing (11) and a first bearing (10) are respectively sleeved at the electric end and the adjusting end of the high pressure rotor (8), the first bearing (10) is positioned in the front bearing box (3), the second bearing (11) is positioned in the middle bearing box (4), the third bearing (12) is positioned in the rear bearing box (5), and the adjusting end and the electric end of the high pressure cylinder (1) are respectively supported on the front bearing box (3) and the middle bearing box (4); the adjusting end of the medium and low pressure cylinder (2) is supported on the medium bearing box (4), and the electric end is supported on the foundation.
2. The subcritical 135MW class single intermediate reheat reaction steam turbine of claim 1, wherein: the bottom of the high-pressure cylinder (1) is provided with a high-pressure exhaust port (1-1) and a first steam extraction port (1-2).
3. The subcritical 135MW class single intermediate reheat reaction steam turbine of claim 1, wherein: the bottom of the medium and low pressure cylinder (2) is provided with an eight steam extraction port (2-1), a six steam extraction port (2-2), a five steam extraction port (2-3), a seven steam extraction port (2-4), a three steam extraction port (2-5) and a four steam extraction port (2-6) from left to right in sequence.
4. The subcritical 135MW class single intermediate reheat reaction steam turbine of claim 1, wherein: the subcritical 135MW grade once intermediate reheating reaction type steam turbine further comprises a high-pressure main steam adjusting combined valve (6), wherein the high-pressure main steam adjusting combined valve (6) is arranged on the right side of the high-pressure cylinder (1) and is located on a main steam pipeline, and a valve shell of the high-pressure main steam adjusting combined valve (6) is directly connected with the high-pressure cylinder (1) through a flange bolt.
5. The subcritical 135MW class single intermediate reheat reaction steam turbine of claim 1, wherein: the subcritical 135MW grade single intermediate reheating reaction type steam turbine further comprises two reheating main steam adjusting combined valves (7), the two reheating main steam adjusting combined valves (7) are respectively located on the left side and the right side of the middle and low pressure cylinder (2), and the two reheating main steam adjusting combined valves (7) are respectively connected with a reheating steam pipeline of the middle and low pressure cylinder (2).
6. The subcritical 135MW class single intermediate reheat reaction steam turbine of claim 1, wherein: all the movable blades and the static blades of the high-pressure part adopt an assembled structure, and all the movable blades and the static blades of the middle-low pressure part adopt the assembled structure except the last two stages of the static blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435287.2A CN112483198A (en) | 2020-12-10 | 2020-12-10 | Subcritical 135MW grade once intermediate reheating reaction type steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435287.2A CN112483198A (en) | 2020-12-10 | 2020-12-10 | Subcritical 135MW grade once intermediate reheating reaction type steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112483198A true CN112483198A (en) | 2021-03-12 |
Family
ID=74940883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011435287.2A Pending CN112483198A (en) | 2020-12-10 | 2020-12-10 | Subcritical 135MW grade once intermediate reheating reaction type steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483198A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208203371U (en) * | 2018-05-24 | 2018-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of 385MW grade supercritical steam turbine |
| CN109026216A (en) * | 2018-07-18 | 2018-12-18 | 哈尔滨汽轮机厂有限责任公司 | A kind of resuperheat reaction turbine of subcritical 80MW grade |
| US20190170020A1 (en) * | 2016-06-23 | 2019-06-06 | Lidao ZHANG | Gas turbine and pressurized water reactor steam turbine combined circulation system |
| CN214035803U (en) * | 2020-12-10 | 2021-08-24 | 哈尔滨汽轮机厂有限责任公司 | Subcritical 135MW grade once intermediate reheating reaction type steam turbine |
-
2020
- 2020-12-10 CN CN202011435287.2A patent/CN112483198A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190170020A1 (en) * | 2016-06-23 | 2019-06-06 | Lidao ZHANG | Gas turbine and pressurized water reactor steam turbine combined circulation system |
| CN208203371U (en) * | 2018-05-24 | 2018-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of 385MW grade supercritical steam turbine |
| CN109026216A (en) * | 2018-07-18 | 2018-12-18 | 哈尔滨汽轮机厂有限责任公司 | A kind of resuperheat reaction turbine of subcritical 80MW grade |
| CN214035803U (en) * | 2020-12-10 | 2021-08-24 | 哈尔滨汽轮机厂有限责任公司 | Subcritical 135MW grade once intermediate reheating reaction type steam turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109162765B (en) | Ultrahigh-pressure 45MW once intermediate reheating high-rotation-speed steam turbine | |
| CN109653817B (en) | 160 MW-grade axial exhaust extraction condensing type combined cycle turbine | |
| CN106224015B (en) | The overcritical clammy condensing turbines of the steam discharge of three cylinder two of 350MW | |
| CN109854315B (en) | Heating system for gas-steam combined cycle unit steam extraction integration and operation method thereof | |
| CN112343672A (en) | High-temperature ultrahigh-pressure single-reheating 50 MW-grade condensing gas power generation turbine | |
| CN214035803U (en) | Subcritical 135MW grade once intermediate reheating reaction type steam turbine | |
| CN213478410U (en) | 25 MW-grade high-rotating-speed steam extraction condensing steam turbine | |
| CN213450518U (en) | 80 MW-grade ultrahigh-temperature combined cycle steam turbine | |
| CN112627911A (en) | 100MW subcritical single-cylinder single-exhaust steam turbine | |
| CN108397247B (en) | Quick-assembly high-speed coaxial intermediate reheat axial exhaust steam turbine | |
| CN112343675A (en) | 25 MW-grade high-rotating-speed steam extraction condensing steam turbine | |
| WO2024108958A1 (en) | 60mw reaction intermediate-intake single-reheat air turbine and operation method | |
| CN215907927U (en) | 40MW ultrahigh-pressure high-rotation-speed single-cylinder air cooling steam turbine | |
| CN214660370U (en) | Three-cylinder four-steam-exhaust H-level two-dragging-one combined cycle steam turbine | |
| CN112483198A (en) | Subcritical 135MW grade once intermediate reheating reaction type steam turbine | |
| CN214145586U (en) | 100MW subcritical single-cylinder single-exhaust steam turbine | |
| CN216811794U (en) | 60MW reaction type high-temperature and high-pressure steam turbine adopting multistage small enthalpy drop blades | |
| CN213711123U (en) | High-temperature ultrahigh-pressure single-reheating 50 MW-grade condensing gas power generation turbine | |
| CN216406924U (en) | Supercritical 145MW grade single intermediate reheating reaction type steam turbine | |
| CN114776391A (en) | 60MW reaction type high-temperature and high-pressure steam turbine adopting multistage small enthalpy drop blades | |
| CN112696237A (en) | 135MW single-cylinder air cooling photo-thermal steam turbine | |
| CN217681879U (en) | Ultrahigh pressure 110MW steam turbine for solar photo-thermal power generation | |
| CN112627916A (en) | 50MW single-cylinder air cooling photo-thermal steam turbine | |
| CN114483227A (en) | Supercritical 145MW grade single intermediate reheating reaction type steam turbine | |
| CN215949594U (en) | Secondary reheating steam turbine and matched double-machine regenerative system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |