CN202055867U - Moving blade capable of performing overall triplet adjustment on steam turbine - Google Patents
Moving blade capable of performing overall triplet adjustment on steam turbine Download PDFInfo
- Publication number
- CN202055867U CN202055867U CN2011201239717U CN201120123971U CN202055867U CN 202055867 U CN202055867 U CN 202055867U CN 2011201239717 U CN2011201239717 U CN 2011201239717U CN 201120123971 U CN201120123971 U CN 201120123971U CN 202055867 U CN202055867 U CN 202055867U
- Authority
- CN
- China
- Prior art keywords
- shroud
- steam passage
- shroud band
- welding
- blade root
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a moving blade capable of performing overall triplet adjustment on a steam turbine. A blade root of the moving blade is of tripod type, a constant-section steam passage is arranged on the blade root, a combined shroud band is arranged on the constant-section steam passage, and formed by welding a shroud band body and a shroud band stopping block. The shroud band body and the shroud band stopping block are separately machined and then welded into the combined shroud band, the problem that the steam passage, the intermedium and a shroud band transiting piece cannot be processed in position can be solved; electromachining can be eliminated, and the problems that the period of electrolytic machining is long and the efficiency is low can be solved; before the shroud band stopping block is welded, numerical control milling can be adopted for machining the steam passage, the intermedium and the shroud band body, so as to improve the product quality and save the machining cost; a polishing machine can also be adopted for polishing the steam passage, and manual polishing of the steam passage is not in need, so that the roughness of the product can meet the requirement and simultaneously the production efficiency can be improved.
Description
Technical field
The utility model relates to a kind of turbine blade, is specifically related to the whole triplet of a kind of steam turbine and regulates moving vane.
Background technique
Steam turbine, gas turbine and gas compressor are referred to as turbine engine, and the heart of turbine engine is exactly a blade.Every turbine engine is made up of tens to tens grades the dynamic and static blade that waits.Impulse turbine machine blade under than the air flow velocity function, is passed to rotor to kinetic energy, so moving vane also is subjected to by the caused action of centrifugal force of high rotating speed except will working in the air-flow of high temperature, high pressure.Along with the decline of the temperature and pressure of air-flow, gas expansion area also increases gradually, and therefore, operational condition at different levels are also inequality.It mainly is to guarantee high-temperature capability (being generally 535 °) and damping property that regulating stage blade is in high-pressure cylinder, so general governing stage movable vane all designs twins' blade or triplet's blade.Present whole triplet's blade, the general technology that adopts integral workblank processing steam passage, structural good, the intensity height, but manufacturability is bad, because sealing up and down, the steam passage part can only be processed by electrolytic method, and shroud and intermediate can only be processed into straight line, postorder will be removed the dead angle that some residual electrolysis can't be processed by hand, roughness also can't be polished and be reached requirement, and the process-cycle is long, inefficiency.
The model utility content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of and is skillfully constructed, structure is unique and the whole triplet of steam turbine being convenient to process regulates moving vane.
Technological scheme: for solving the problems of the technologies described above, the whole triplet of a kind of steam turbine of the present utility model regulates moving vane, comprise blade root, described blade root is the triadius type blade root, described blade root is provided with the uniform section steam passage, the uniform section steam passage is provided with the combined type shroud, and described combined type shroud is welded by shroud body and shroud sprue.
The whole triplet of steam turbine of the present utility model regulates moving vane, and by shroud body and the independent processing of shroud sprue are welded into the combined type shroud again, what can solve steam passage, intermediate and shroud switching can't process the problem of putting in place.
For the ease of welding, described shroud body is provided with first bevel for welding, and described shroud sprue is provided with second bevel for welding suitable with first bevel for welding, and first bevel for welding and the second bevel for welding cooperation place form weld seam.
In the present embodiment, the number of described uniform section steam passage is three.
Beneficial effect: the whole triplet of a kind of steam turbine of the present utility model regulates moving vane, is skillfully constructed, the structure uniqueness, compared with prior art, has the following advantages:
1, by shroud body and the independent processing of shroud sprue are welded into the combined type shroud again, what can solve steam passage, intermediate and shroud switching can't process the problem of putting in place;
2, owing to adopt the combined type shroud, can break away from electric machining, it is long to solve the electrolytic machining process-cycle, the problem of inefficiency;
3, before welding shroud sprue, NC Milling steam passage, intermediate and shroud body can be adopted, processing cost can be improved the quality of products, save;
4, before welding shroud sprue, buffing machine polishing steam passage can be adopted, and craft needn't be adopted, the roughness of product is met the requirements of simultaneously enhance productivity.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a fractionation structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As depicted in figs. 1 and 2, the whole triplet of steam turbine of the present utility model regulates moving vane, comprises blade root 1, blade root 1 is the triadius type blade root, blade root 1 is provided with uniform section steam passage 2, and uniform section steam passage 2 is provided with the combined type shroud, and the combined type shroud is welded by shroud body 3 and shroud sprue 4.
In the present embodiment, shroud body 3 is provided with first bevel for welding 5, and shroud sprue 4 is provided with suitable second bevel for welding, 6, the first bevel for weldings 5 and second bevel for welding, 6 cooperation places of first bevel for welding 5 and forms weld seam 7; The number of uniform section steam passage 3 is three.
The utility model is adding man-hour, whole triplet's blade separated into two parts is processed separately, step is as follows: one, process whole triplet's movable vane lamellar body, comprise processing blade root 1 and the shroud body 3 and first bevel for welding 5, reference level is carried out roughing, guarantee form and position tolerance, the processing of uniform section steam passage 2 usefulness numerical control machining centers is put in place, and polishing then guarantees the steam passage machining accuracy; Two, processing shroud sprue 4 with line cutting, numerical control machining center, puts shroud molded lines, 6 processing of welding second groove in place; Three, welding: the shroud sprue is adjusted steam passage 2 height during welding, spot welding is fixed on the vane group, blade is preheating to 350～400 ℃ again, adopts the argon arc welding bottoming earlier, use welding rod R807 full weld again, after postwelding is cooled to 100～150 ℃, carry out stress removing, and whether weld full with dye penetration inspection weld seam 7, weldering is even, defective mill to open with numerical control machining center reweld; Four, the blade fine finishing that welding is qualified guarantees that finished product keeps the form and position tolerance and the roughness requirement of face, removes welding stress, and checks weld seam 7 once more, with uniform section steam passage 3 descales.
The above only is a preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the whole triplet of steam turbine regulates moving vane, comprise blade root (1), it is characterized in that: described blade root (1) is the triadius type blade root, described blade root (1) is provided with uniform section steam passage (2), uniform section steam passage (2) is provided with the combined type shroud, and described combined type shroud is welded by shroud body (3) and shroud sprue (4).
2. the whole triplet of steam turbine according to claim 1 regulates moving vane, it is characterized in that: described shroud body (3) is provided with first bevel for welding (5), described shroud sprue (4) is provided with second bevel for welding (6) suitable with first bevel for welding (5), and first bevel for welding (5) forms weld seam (7) with second bevel for welding (6) cooperation place.
3. the whole triplet of steam turbine according to claim 1 regulates moving vane, and it is characterized in that: the number of described uniform section steam passage (3) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201239717U CN202055867U (en) | 2011-04-25 | 2011-04-25 | Moving blade capable of performing overall triplet adjustment on steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201239717U CN202055867U (en) | 2011-04-25 | 2011-04-25 | Moving blade capable of performing overall triplet adjustment on steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055867U true CN202055867U (en) | 2011-11-30 |
Family
ID=45015841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201239717U Expired - Fee Related CN202055867U (en) | 2011-04-25 | 2011-04-25 | Moving blade capable of performing overall triplet adjustment on steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204248A (en) * | 2016-12-20 | 2018-06-26 | 上海汽轮机厂有限公司 | Steam turbine triplet governing-stage moving blade and installation method |
-
2011
- 2011-04-25 CN CN2011201239717U patent/CN202055867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204248A (en) * | 2016-12-20 | 2018-06-26 | 上海汽轮机厂有限公司 | Steam turbine triplet governing-stage moving blade and installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104308481B (en) | Stator blade machining method of aeroengine compressor without mounting plate | |
| CN104384643B (en) | Aero-engine Thin-Wall Outer Casing electrochemical machining method | |
| CN105269277A (en) | Method for machining arc-tooth tenon blade of aircraft engine gas compressor | |
| CN105252233B (en) | A kind of aero-engine high temperature alloy counterweight blade machining process | |
| CN105252224A (en) | Machining method of outer duct outlet guide vane of aero-engine | |
| CN108714771A (en) | A kind of aero-engine compressor stator blade processing method and products thereof | |
| CN112059333B (en) | Blisk electrolytic machining device and method for blade full-profile liquid supply | |
| CN104475842B (en) | A kind of Blisk profile milling technological method for processing | |
| CN103990875A (en) | Compound electrode machining method for improving efficiency of electric spark machining of turbine disc with blade tip shroud | |
| CN202055867U (en) | Moving blade capable of performing overall triplet adjustment on steam turbine | |
| CN105127696B (en) | A kind of Control Stage of Steam Turbine blade machining process | |
| ATE515348T1 (en) | METHOD FOR MACHINING A GAS TURBINE RUNNER | |
| CN108202202B (en) | Steam seal tooth repairing system and method for steam turbine rotor | |
| WO2023060826A1 (en) | Method for machining high-head water pump turbine blade disc | |
| CN208437973U (en) | Jun type blade processing fixture | |
| CN205271484U (en) | Propeller blades mills on surface prevents quivering machine and adds anchor clamps | |
| CN103801836A (en) | Laser finish machining device for air valves | |
| CN113020677A (en) | Method for processing longitudinal leaf root steam passage of steam turbine | |
| CN111515513A (en) | Welding method of high-temperature alloy drum barrel rotor assembly | |
| CN103056431B (en) | With CNC milling machine, rough machined method is carried out to the sealing surface of honeycomb seals | |
| CN205733184U (en) | A kind of radial groove process tool | |
| CN203245366U (en) | Specialized machine with double shafts for engine exhaust pipe machining | |
| CN218799125U (en) | Machining tool for abrasion repair of aluminum alloy blade of aircraft engine | |
| CN204504431U (en) | A kind of uncovered coated blade processing device | |
| CN113977209B (en) | Aviation blade processing technology based on hard clamping |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20170425 |