CN220869484U - High-pressure cylinder body structure of ultra-supercritical steam turbine - Google Patents
High-pressure cylinder body structure of ultra-supercritical steam turbine Download PDFInfo
- Publication number
- CN220869484U CN220869484U CN202322575017.7U CN202322575017U CN220869484U CN 220869484 U CN220869484 U CN 220869484U CN 202322575017 U CN202322575017 U CN 202322575017U CN 220869484 U CN220869484 U CN 220869484U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- rotor
- inner cylinder
- steam turbine
- ultra
- 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.)
- Active
Links
- 238000005336 cracking Methods 0.000 claims abstract description 6
- 235000004608 catclaw acacia Nutrition 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 2
- 244000028952 catclaw acacia Species 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 8
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 244000161999 Acacia greggii Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a high-pressure cylinder body structure of an ultra-supercritical steam turbine, which comprises an outer cylinder of a barrel-shaped structure, an inner cylinder arranged on the inner side of the outer cylinder and a rotor arranged in the center of the inner cylinder, wherein the outer cylinder is divided into an air inlet cylinder and an air exhaust cylinder which are mutually connected by a vertical radial middle division surface, steam inlets are arranged on two horizontal sides of the air inlet cylinder, the outer cylinder is connected with an adjusting steam valve through the steam inlets and is connected to a main steam valve through the adjusting steam valve, a steam exhaust pipeline is arranged at the bottom of the air exhaust cylinder, the inner cylinder is of a vertical longitudinal bisection surface structure, the rotor is of a whole section of a non-center hole structure, and shaft seals are arranged at positions of two ends of the rotor penetrating out of the outer cylinder. According to the utility model, the tungsten argon arc welding is adopted at the welding seam arc-receiving position to fill, so that arc pit cracks are effectively avoided, the fastening counter bore with an anti-cracking structure at the outer side of the inner cylinder is also effectively avoided, the problem of cracks at the position is effectively avoided, faults caused by the cracks at the position of the high-pressure cylinder body of the steam turbine are reduced, and the service life of the steam turbine is prolonged.
Description
Technical Field
The utility model relates to the technical field of turbine structures, in particular to a high-pressure cylinder body structure of an ultra-supercritical turbine.
Background
ZG13Cr9Mo2Co1NiVNbNB (CB 2) is a novel material of a steam turbine, and on the basis of ultra-supercritical, the temperature of main steam and reheat steam of a large ultra-high temperature reheat ultra-supercritical CB2 material unit is adjusted from 580 ℃ to 625 ℃, and the thermal efficiency is 4% -6% higher than that of the ultra-supercritical unit, so that the method has important significance in saving resource consumption, protecting environment and realizing sustainable development.
The manufacturing process of the turbine cylinder body casting comprises the processes of casting, heat treatment, welding and the like, and because the working environment needs to bear higher temperature and pressure, the product quality is seriously affected by the crack defect generated by the process defect, the service life of the turbine is reduced, and potential safety hazards are caused.
Disclosure of utility model
According to the technical problem to be solved, the high-pressure cylinder body structure of the ultra-supercritical steam turbine is provided.
In order to achieve the purpose, the utility model discloses a high-pressure cylinder body structure of an ultra-supercritical steam turbine, which comprises an outer cylinder of a barrel-shaped structure, an inner cylinder arranged on the inner side of the outer cylinder and a rotor arranged at the center of the inner cylinder, wherein the outer cylinder is divided into an air inlet cylinder and an air exhaust cylinder which are connected with each other by vertical radial bisectors, steam inlets are arranged on two horizontal sides of the air inlet cylinder, the outer cylinder is connected with an adjusting steam valve through the steam inlets and is connected to a main steam valve through the adjusting steam valve, a steam exhaust pipeline is arranged at the bottom of the air exhaust cylinder, the inner cylinder is of a vertical longitudinal bisector structure, the rotor is of a whole-section non-center hole structure, and shaft seals are arranged at positions where two ends of the rotor penetrate out of the outer cylinder.
Further, the inner cylinder is divided into a left half inner cylinder and a right half inner cylinder by a vertical radial middle division surface, the left half inner cylinder and the right half inner cylinder are buckled relatively to form an inner annular cavity, the rotor is arranged in the annular cavity, and the horizontal directions of the left half inner cylinder and the right half inner cylinder are communicated with the steam inlet.
Further, a fastening counter bore with an anti-cracking structure is formed in the outer side of the inner cylinder.
Further, the vertical radial bisector of the outer cylinder and the vertical radial bisector of the inner cylinder are spatially perpendicular to each other.
Further, a movable blade grid is arranged at the rotary drum part of the rotor, stationary blade grids staggered with the movable blade grid are arranged at the inner side of the inner cylinder, a coupler is arranged at one end of the rotor, which is close to the air inlet cylinder, and the coupler and a rotor spindle are integrally forged and formed.
Furthermore, cat claws are arranged on two sides of the bottom of the outer cylinder and used for fixedly mounting the outer cylinder on the bearing seat.
Further, a filling section is arranged at the welding seam arc-receiving position of the outer cylinder.
Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a high-pressure cylinder body structure of an ultra-supercritical steam turbine, which is filled by adopting tungsten argon arc welding at a welding seam arc-collecting position, so that arc pit cracks are effectively avoided, a fastening counter bore with an anti-cracking structure at the outer side of an inner cylinder is also effectively avoided, the problem of cracks at the position is effectively solved, the position of the high-pressure cylinder body of the steam turbine is reduced to generate faults due to the cracks, and the service life of the steam turbine is prolonged.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a half-sectional view of a cylinder body of the present utility model.
Fig. 2 is a block diagram of the internal cylinder of the present utility model.
Fig. 3 is an enlarged view a of fig. 1 of the present utility model.
In the figure: 1 is an outer cylinder; 11 is an inlet cylinder; 12 is a cylinder; 13 is a steam exhaust pipeline; 14 is the steam inlet; 15 is cat claw; 2 is an inner cylinder; 3 is a rotor; 31 is a shaft seal; 32 is a coupling; 4 is a filling segment.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, an example of the high-pressure cylinder structure of the steam turbine comprises an outer cylinder 1 with a barrel structure, an inner cylinder 2 arranged on the inner side of the outer cylinder 1 and a rotor 3 arranged in the center of the inner cylinder 2, wherein the outer cylinder 1 is divided into an air inlet cylinder 11 and an air exhaust cylinder 12 which are mutually connected by vertical radial bisectors, air inlets 14 are arranged on two horizontal sides of the air inlet cylinder 11, a high-pressure main steam valve and an adjusting steam valve are arranged on two sides of the high-pressure cylinder, the outer cylinder 1 is connected with the adjusting steam valve through the air inlets 14 and is connected with the main steam valve through the adjusting steam valve, the air exhaust cylinder 12 is provided with an air exhaust pipeline 13 at the bottom, as a preferred embodiment of the steam turbine, the air exhaust pipeline 13 is provided with two groups and is installed downwards, the inner cylinder 2 is of a vertical longitudinal bisector structure, the rotor 3 is of a whole section of a structure without a central hole, two ends of the rotor 3 penetrate out of the outer cylinder 1, the rotor 3 and the outer cylinder 1 are in a sealing structure through shaft seal, the shaft seal is connected with the outer cylinder 1, the bulge on the surface of the inner cylinder 2 is contacted with the inner wall 1, and the inner cylinder 1 is accurately positioned and the cervical vertebra 2 is positioned.
The inner cylinder 1 is divided into a left half inner cylinder and a right half inner cylinder by a vertical radial bisection surface, the left half inner cylinder and the right half inner cylinder are buckled relatively to form an inner annular cavity, the rotor 3 is arranged in the annular cavity, and the horizontal directions of the left half inner cylinder and the right half inner cylinder are communicated with the steam inlet 14.
As shown in fig. 2, a fastening counter bore with an anti-cracking structure is arranged on the outer side of the inner cylinder 2, so that the problem of cracking at the position is effectively avoided.
The vertical radial bisection surface of the outer cylinder 1 is vertical to the vertical radial bisection surface of the inner cylinder 2 in space structure, the vertical radial bisection surface of the outer cylinder 1 is vertical to the central axis of the rotor, the split outer cylinder structure fixedly connects the air inlet cylinder 11 with the air exhaust cylinder 12 through bolts, the installation and the disassembly are convenient, the vertical radial bisection surface of the inner cylinder 2 is vertical to the central axis of the steam inlet 14, the inner cylinder 2 structure avoids the problem that the air tightness is poor and leakage is easy to occur when the horizontal bisection surface is conducted with the steam inlet 14.
The rotor 3 is provided with the movable blade grating at the rotary drum part, the inner side of the inner cylinder 2 is provided with the static blade grating staggered with the movable blade grating, one end of the rotor 3 close to the air inlet cylinder 11 is provided with the coupler 32, the coupler 32 and the main shaft of the rotor 3 are integrally forged and formed, and the integral structure can effectively reduce the installation difficulty between the rotor 3 and the coupler 32 and ensure the structure precision.
Cat claws 15 are arranged on two sides of the bottom of the outer cylinder 1 and used for fixedly mounting the outer cylinder 1 on a bearing seat, so as to play a role in supporting and mounting.
As shown in fig. 3, a filling section 4 is arranged at the welding seam arc-receiving position of the outer cylinder 1, and as a preferred embodiment of the application, the filling section is filled by argon tungsten-arc welding, so that arc pit cracks can be effectively avoided.
The points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed; second, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present utility model and are not meant to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.
Claims (7)
1. The utility model provides a super supercritical steam turbine high pressure cylinder body structure, includes outer jar (1) of bucket structure, sets up in the inboard interior jar (2) of outer jar (1) and sets up rotor (3) at interior jar (2) center, a serial communication port, outer jar (1) divide into interconnect's inlet cylinder (11) and exhaust cylinder (12) by perpendicular radial bisection face, inlet cylinder (11) horizontal both sides are provided with inlet port (14), outer jar (1) are connected through inlet port (14) and are adjusted the steam valve to be connected to main steam valve through adjusting the steam valve, exhaust cylinder (12) bottom is provided with exhaust steam pipe (13), interior jar (2) are perpendicular vertical bisection face structure, rotor (3) are whole section no centre bore structure, the position that outer jar (1) was worn out at rotor (3) both ends is provided with shaft seal (31).
2. The high-pressure cylinder structure of the ultra-supercritical steam turbine according to claim 1, wherein the inner cylinder (2) is divided into a left half inner cylinder and a right half inner cylinder by a vertical radial bisection surface, the left half inner cylinder and the right half inner cylinder are buckled relatively to form an inner annular cavity, the rotor (3) is arranged in the annular cavity, and the left half inner cylinder and the right half inner cylinder are communicated with the steam inlet (14) in the horizontal direction.
3. The high-pressure cylinder body structure of the ultra-supercritical steam turbine according to claim 1, wherein a fastening counter bore with an anti-cracking structure is formed on the outer side of the inner cylinder (2).
4. A high pressure cylinder structure of an ultra supercritical steam turbine according to claim 1, wherein the vertical radial bisector of the outer cylinder (1) and the vertical radial bisector of the inner cylinder (2) are spatially perpendicular to each other.
5. The high-pressure cylinder structure of the ultra-supercritical steam turbine according to claim 1, wherein a movable blade grid is arranged at a rotary drum part of the rotor (3), static blade grids staggered with the movable blade grid are arranged on the inner side of the inner cylinder (2), a coupler (32) is arranged at one end, close to the air inlet cylinder (11), of the rotor (3), and the coupler (32) and a main shaft of the rotor (3) are integrally forged and formed.
6. The high-pressure cylinder structure of the ultra-supercritical steam turbine according to claim 1, wherein cat claws (15) are arranged on two sides of the bottom of the outer cylinder (1) and used for fixedly mounting the outer cylinder (1) on a bearing seat.
7. A high pressure cylinder structure of an ultra supercritical steam turbine according to claim 1, characterized in that a filler section (4) is provided at the weld arc of the outer cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575017.7U CN220869484U (en) | 2023-09-21 | 2023-09-21 | High-pressure cylinder body structure of ultra-supercritical steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575017.7U CN220869484U (en) | 2023-09-21 | 2023-09-21 | High-pressure cylinder body structure of ultra-supercritical steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220869484U true CN220869484U (en) | 2024-04-30 |
Family
ID=90817123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322575017.7U Active CN220869484U (en) | 2023-09-21 | 2023-09-21 | High-pressure cylinder body structure of ultra-supercritical steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220869484U (en) |
-
2023
- 2023-09-21 CN CN202322575017.7U patent/CN220869484U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205640010U (en) | V -arrangement end face seal formula whirl compensator | |
| CN220869484U (en) | High-pressure cylinder body structure of ultra-supercritical steam turbine | |
| CN105545795A (en) | Novel water cooling acid-resistant, alkali-resistant and high-temperature-resistant packaged type mechanical seal | |
| CN204533566U (en) | Four eccentric two-way seal butterfly valves | |
| CN201407451Y (en) | Rotating compensator of heat net pipeline | |
| CN103075602A (en) | Chimney expansion joint | |
| CN201059400Y (en) | Sealing flange | |
| CN203585684U (en) | High-pressure rotating compensator | |
| CN213117989U (en) | Wear-resisting leak protection formula compensator | |
| CN210829405U (en) | Steam turbine shaft end steam seal structure | |
| CN212297609U (en) | Multi-sealing combined valve | |
| CN203114607U (en) | High-temperature and fluid end pump head structure | |
| CN216409781U (en) | High leakproofness grate cooler NZL structure | |
| CN207681834U (en) | Gas turbine turbine stator blade sealing ring tooling | |
| CN202545841U (en) | Low-temperature welding type double eccentric aluminum butterfly valve | |
| Lisyanskii et al. | Practical experience with the introduction of honeycomb shroud seals on 250–800 MW supercritical pressure units | |
| CN216518182U (en) | Sectional type TRT casing | |
| CN206723124U (en) | Without axle sleeve bearing-free Double End integrated mechanical sealing | |
| CN105909821A (en) | High-temperature high-pressure rigidity seal ball valve | |
| CN218717511U (en) | Wallboard structure for high-temperature and high-pressure Roots blower | |
| CN218882666U (en) | Cooling device for cylinder body | |
| CN114483223B (en) | Temperature balance structure of steam turbine cylindrical cylinder | |
| CN217003349U (en) | Internal cooling structure of high-temperature quick valve rotary valve clack | |
| CN219587613U (en) | I-shaped sealing ring with flange structure | |
| CN219866592U (en) | Sealing and air leakage preventing structure for valve rod of hot air valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |