CN110159359A - A kind of partition and its processing method of steam turbine - Google Patents
A kind of partition and its processing method of steam turbine Download PDFInfo
- Publication number
- CN110159359A CN110159359A CN201910442716.XA CN201910442716A CN110159359A CN 110159359 A CN110159359 A CN 110159359A CN 201910442716 A CN201910442716 A CN 201910442716A CN 110159359 A CN110159359 A CN 110159359A
- Authority
- CN
- China
- Prior art keywords
- partition
- leaf grating
- ring block
- weld groove
- steam turbine
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 title claims abstract description 63
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 36
- 238000005266 casting Methods 0.000 claims description 9
- 238000005476 soldering Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 238000011900 installation process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
- F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of partition of steam turbine and its processing methods, belong to steam turbine equipment, its key points of the technical solution are that;Including several capable assemblings at circular leaf grating, it is fixedly connected between the adjacent leaf grating, the leaf grating includes the inner ring block, blade and outer ring block being fixedly connected, and the blade is between outer ring block and inner ring block.Of the invention is structurally reasonable, no longer needs to weld blade in welding, so that blade be made not to be deformed during the installation process, is unaffected the installation accuracy of blade.
Description
Technical field
The invention belongs to steam turbine equipments, more specifically, it relates to the partition and its processing method of a kind of steam turbine.
Background technique
Partition board of steam turbine is and to form steam turbine separation partition at different levels for fixing stator blade.Partition is mainly by partition
Body, stator blade and partition outer rim composition.It can be mounted in the septalium of cylinder wall by partition outer rim during installation, it can also be with
It is mounted on cylinder by diaphragm housing ring.Partition is divided into impulse type stage partition (being divided into welding diaphragm and cast-in diaphragm) and reaction-type stage partition
(commonly referred to as fixed blade ring).
Partition is for fixing gas leakage between stator blade (nozzle) and prevention grade, it will be separated into several pressures inside steam turbine
Power section makes steam that potential energy are changed into kinetic energy by static cascade, and air-flow is made to flow into movable vane piece by defined direction.Partition can be straight
It connects in the septalium for being fixed on cylinder inner wall or is fixed in diaphragm housing ring.
Partition bears the load generated by pressure difference at work.According to the different location of flow passage component, high-voltage section is worked in
The partition divided subjects the effect of high temperature, high steam, and the partition for working in mortgage part subjects the effect of moist steam.
When installing partition body, guide vane and partition outer ring, usually using the technique of welding, at this time in installation guide vane
During, guide vane can generate biggish deformation because of welding, so that the installation accuracy of guide vane be made to be difficult to ensure, influence every
The assembly precision and Forming Quality of plate.
Therefore it needs to propose the new technical solution of one kind to solve the above problems.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of partition of steam turbine and its processing side
Method be deformed blade will not because of welding during processing partition, and the installation accuracy of blade is made not will receive shadow
It rings.
To achieve the above object, the present invention provides the following technical scheme that the partition and its processing method of a kind of steam turbine,
Including several capable assemblings at circular leaf grating, be fixedly connected between the adjacent leaf grating, the leaf grating include be fixedly connected it is interior
Ring block, blade and outer ring block, the blade is between outer ring block and inner ring block.
By using above-mentioned technical proposal, during leaf grating is processed into partition, directly by adjacent inner ring block, phase
Adjacent outer ring block is welded, and blade not will receive the influence for the high temperature that welding generates during welding at this time, and blade will not
It is deformed because of high temperature, makes the available guarantee of the installation accuracy of blade, it will not assembly precision and Forming Quality to partition
It has an impact.
The present invention is further arranged to: the outer ring block is offered perpendicular to the one side wall of its axis and is set with its axis coaxle
The first weld groove set, first weld groove run through the both ends of the surface of outer slide.
By using above-mentioned technical proposal, the contact area of solder flux and leaf grating is increased using the first weld groove, increases phase
Bonding strength between adjacent leaf grating keeps the intensity of partition higher.
The present invention is further arranged to: the outer ring block lateral wall offers third weld groove, and the third weld groove is by outer ring
Block both ends of the surface run through.
By using above-mentioned technical proposal, the contact surface between welding machine and leaf grating is further increased using third weld groove
Product, to increase the bonding strength between adjacent leaf grating.
The present invention is further arranged to: the inner ring block inner wall offers the 4th weld groove, and the 4th weld groove is by inner ring block
Both ends of the surface run through.
By using above-mentioned technical proposal, it is fixed using inner ring block of the solder flux in the 4th weld groove to adjacent leaf grating,
To make to be not susceptible to separate between adjacent leaf grating.
Another object of the present invention is to provide a kind of processing method of partition board of steam turbine, leaf during processing partition
Piece will not be deformed, and influence the installation accuracy of blade will not honest and kind.
To achieve the above object, the present invention provides following technical solution, a kind of partition processing method of steam turbine, including
Following steps:
S1: casting, by casting mould by single leaf grating casting and forming；
S2: the leaf grating in S1 is machined to the size of needs using lathe by molding；
S3: the leaf grating in S2 is pieced together a full circle by splicing；
S4: several leaf gratings mutually abutted in S3 are welded into an entirety by welding；
S5: going soldering, is removed the soldering of the partition in S4 using lathe；
S5: segmentation, the semicircle for being divided into two radians equal on partition in S5.
It was welded by welding adjacent leaf grating so that blade be made not will receive by using above-mentioned technical proposal
The influence of the high temperature generated in journey be deformed blade will not, be unaffected the installation accuracy of blade.
The present invention is further arranged to: before welding being covered blade using baffle in the S4.
By using above-mentioned technical proposal, blade is covered using baffle, welds the high temperature generated in welding process
Slag will not be contacted directly with blade generation, so that blade be made not to be deformed, be unaffected its surface accuracy.
The present invention is further arranged to: after being welded carrying out the leaf grating of interconnection at destressing heat in the S4
Reason.
By using above-mentioned technical proposal, partition is subjected to destressing processing after being welded, does not make partition at work not
Easily it is damaged.
The present invention is further arranged to: being detected the spacing between adjacent leaf grating using 0.04 clearance gauge in the S3, is made adjacent
Spacing between leaf grating is less than 0.04 millimeter.
Make the spacing between leaf grating will not using the spacing between clearance gauge detection leaf grating by using above-mentioned technical proposal
It is excessive, to make steam more as far as possible flow through between adjacent blades, to promote the efficiency of steam turbine.
The present invention is further arranged to: six leaf gratings being first spliced into middle groups in the S3, seven leaf gratings are spliced into
Side group later splices a middle groups and two groups of side groups, and two groups of side groups are located at the two sides of middle groups, then
Middle groups and two side groups are spliced into the semicircle that semicircle and another middle groups and side group are spliced into splice.
By using above-mentioned technical proposal, middle groups and side group are welded respectively in welding, wait it is to be cooled it
Side group and middle groups are welded again afterwards, so that the high temperature generated when welding be made not generate shadow to the Forming Quality of partition
It rings.
The present invention is further arranged to: the outer ring block positioned at middle groups or the outermost leaf grating of side group offers first
The side wall end face of weld groove offers the second weld groove, and the end face that adjacent leaf grating contacts with each other is run through, is combined by second weld groove
The middle groups of partition and the second weld groove of side group are towards the same side.
By using above-mentioned technical proposal, middle groups and side group or side group and side are increased using the second weld groove
Bonding strength between group, to keep partition more stable during the work time.
In conclusion the invention has the following advantages:
1, the present invention welds several leaf gratings when processing partition, to no longer need to weld blade, makes blade
It will not be deformed because of being influenced by the high temperature generated when welding, increase the assembly precision of blade；
2, during leaf grating is welded into an entire partition, leaf grating is divided into multiple groups and is welded, to reduce welding
Influence of the leaf grating expanded by heating to machining accuracy in the process；
3, it contact high temperature welding slag will not directly with blade generation using baffle in the welding process, thus the quality of blade surface
It is unaffected.
Detailed description of the invention
Fig. 1 is the perspective view of the present embodiment；
Fig. 2 is the schematic diagram that the present embodiment is used to show cascade structure；
Fig. 3 is the present embodiment for showing that the 5th weld groove opens up the schematic diagram of position.
Detailed description of the invention: 1, leaf grating；11, outer ring block；111, the first weld groove；112, third weld groove；113, the second weld groove；114,
5th weld groove；12, blade；13, inner ring block；131, the 4th weld groove.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment 1: a kind of partition and its processing method of steam turbine, as shown in Figure 1, including 40 pieces of capable assemblings into full circle
Leaf grating 1, be welded and fixed between adjacent leaf grating 1 comprising inner ring block 13, blade 12 and the outer ring block 11 being made of one piece,
Blade 12 is between inner ring block 13 and outer ring block 11.The inner ring block 13 of adjacent leaf grating 1 can be abutted against mutually, and outer ring block 11 can be mutual
It abuts.During leaf grating 1 is processed into partition, directly by adjacent inner ring block 13, adjacent outer ring block 11 is welded,
Blade 12 not will receive the influence for the high temperature that welding generates during welding at this time, and blade 12 will not generate change because of high temperature
Shape makes the available guarantee of the installation accuracy of blade 12, will not assembly precision to partition and Forming Quality have an impact.
In order to keep the welding process between leaf grating 1 more convenient, also make the connection between leaf grating 1 stronger, such as Fig. 2 institute
Show, outer ring block 11 offers the first weld groove 111 with the setting of its axis coaxle, the first weld groove perpendicular to the one side wall of its axis
111 run through adjacent outer ring block 11 side wall close to each other, and the first weld groove 111 of adjacent leaf grating 1 is mutually conducted.Outer ring block 11
Side wall far from its axis offers third weld groove 112, and third weld groove 112 passes through the side wall that outer slide is connect with adjacent outer slide
It wears.Inner ring block 13 offers the 4th weld groove 131 close to the side wall of its axis, and the 4th weld groove 131 is by inner ring block 13 close to adjacent interior
The end face of ring block 13 is run through.Adjacent leaf grating 1 is welded using the first weld groove 111, third weld groove 112 and the 4th weld groove 131, is increased
Bonding strength between adjacent leaf grating 1, increases the quality when molding of the partition of processing, is not susceptible to it at work
Damage.
Working principle:
When processing partition, leaf grating 1 is pieced together into an entire circle, later by fill solder in the first weld groove 111, third weld groove
Leaf grating 1 in weld groove 131, is welded into partition using argon arc welding machine by 112 and the 4th, will not be made in welding process and total welding high temperature
Blade 12 is deformed.
Embodiment 2: a kind of processing method of partition board of steam turbine includes the following steps:
S1: casting, using casting mould by single 1 casting and forming of leaf grating, the material selection 1Cr11MoV of leaf grating 1；
S2: the leaf grating 1 in S1 is machined to the size needed using CNC milling machine, in 40 leaf gratings 1 of simultaneous selection by molding
Six leaf gratings 1 open up two the second weld grooves 113, and the outer ring block 11 that the second weld groove 113 is located at leaf grating 1 offers the first weld groove
111 side wall, the end face connection being in contact respectively with adjacent leaf grating 1, and it runs through 11 lateral wall of outer ring block, and six leaves
The second weld groove 113 in grid 1 opens up that position is identical, and the outer ring block 11 of the leaf grating 1 connection is opened far from the side wall of the second weld groove 113
Equipped with the 5th weld groove 114, the 5th weld groove 114 runs through the side wall that adjacent leaf grating 1 is in contact；
S3: 1 split of leaf grating Jing Guo processing and forming is in a full circle, splices 12 leaf gratings 1 in splicing by splicing
At the equal middle groups of two groups of 1 quantity of leaf grating, remaining 28 leaf gratings 1 are spliced into the identical side group of four groups of quantity,
And every group has the leaf grating 1 for offering the second weld groove 113, and the leaf grating 1 is respectively positioned on the outermost of every group of leaf grating 1.It is inciting somebody to action
One group of middle groups is placed between two groups of side groups by middle groups and side group during splicing, and makes two groups of formation semicircles later
Leaf grating 1 spells and at an entire circle, and the leaf grating 1 for offering the second weld groove 113 between adjacent every group does not contact, in the mistake for spelling sum
The spacing between adjacent leaf grating 1 is detected using 0.04 millimeter of clearance gauge in journey, when clearance gauge can not be inserted between adjacent leaf grating 1,
The dimensional accuracy that leaf grating 1 spells sum reaches requirement；
S4: solder is placed in the first weld groove 111 of 11 side of outer ring block by welding, using argon arc welding machine by middle groups and side
The leaf grating 1 of group is welded respectively, and solder is filled in respectively in third weld groove 112 and the 4th weld groove 131 later, respectively to the
Three weld grooves 112 and the 4th weld groove 131 are welded, and after waiting middle groups and side group cooling after welding, utilize the second weldering
Slot 113 and the 5th weld groove 114 are entire round for one by middle groups and side group welding；
Blade 12 is covered using the baffle of circular ring shape during the welding process, makes the high temperature welding slag generated when welding will not be direct
It is contacted with the generation of blade 12, is unaffected the surface quality of blade 12.
After completing welding, entire partition is subjected to destressing heat treatment, partition is placed in annealing furnace and is heated to 530
Degree Celsius heat preservation 2 to 4 hours, annealing furnace is cooled to 300 degrees Celsius later, partition is placed in air is cooled to room later
Temperature.
S5: going soldering, is cut the welding of partition both ends and outboard sidewalls using numerically controlled lathe；
S6: separate, partition is separated into two equal semicircles of radian using laser soldering.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (10)
1. a kind of partition of steam turbine, it is characterised in that: including several capable assemblings at circular leaf grating (1), the adjacent leaf grating
(1) it is fixedly connected between, the leaf grating (1) includes the inner ring block (13), blade (12) and outer ring block (11) being fixedly connected, described
Blade (12) is located between outer ring block (11) and inner ring block (13).
2. a kind of partition of steam turbine according to claim 1, it is characterised in that: the outer ring block (11) is perpendicular to its axis
The one side wall of line offers the first weld groove (111) with the setting of its axis coaxle, and first weld groove (111) is by the two of outer slide
End face is run through.
3. a kind of partition of steam turbine according to claim 1, it is characterised in that: outer ring block (11) lateral wall opens up
Have third weld groove (112), the third weld groove (112) runs through outer ring block (11) both ends of the surface.
4. a kind of partition of steam turbine according to claim 1, it is characterised in that: inner ring block (13) inner wall offers
4th weld groove (131), the 4th weld groove (131) run through inner ring block (13) both ends of the surface.
5. a kind of partition processing method of steam turbine, characterized by the following steps:
S1: casting, by casting mould by single leaf grating (1) casting and forming；
S2: the leaf grating (1) in S1 is machined to the size of needs using lathe by molding；
S3: the leaf grating (1) in S2 is pieced together a full circle by splicing；
S4: several leaf gratings (1) mutually abutted in S3 are welded into an entirety by welding；
S5: going soldering, is removed the soldering of the partition in S4 using lathe；
S6: segmentation, the semicircle for being divided into two radians equal on partition in S5.
6. a kind of partition processing method of steam turbine according to claim 5, it is characterised in that: in welding in the S4
It is preceding to be covered blade (12) using baffle.
7. a kind of partition processing method of steam turbine according to claim 5, it is characterised in that: in welding in the S4
The leaf grating of interconnection (1) is subjected to destressing heat treatment afterwards.
8. a kind of partition processing method of steam turbine according to claim 5, it is characterised in that: use 0.04 in the S3
Millimeter clearance gauge detects the spacing between adjacent leaf grating (1), makes the spacing between adjacent leaf grating (1) less than 0.04 millimeter.
9. a kind of partition processing method of steam turbine according to claim 5, it is characterised in that: first by six in the S3
Leaf grating (1) is spliced into middle groups, seven leaf gratings (1) is spliced into side group, later by a middle groups and two groups of side spellings
Connect, and two groups of side groups are located at the two sides of middle groups, then by middle groups and two side groups be spliced into semicircle with it is another
The semicircle that a middle groups and side group are spliced into splices.
10. a kind of partition processing method of steam turbine according to claim 9, it is characterised in that: be located at middle groups or
The side wall end face that the outer ring block (11) of the outermost leaf grating of side group (1) offers the first weld groove (111) offers the second weld groove
(113), second weld groove (113) runs through the end face that adjacent leaf grating (1) contacts with each other, and is combined into middle groups and the side of partition
The second weld groove (113) of side group is towards the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442716.XA CN110159359B (en) | 2019-05-25 | 2019-05-25 | Method for processing partition plate of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910442716.XA CN110159359B (en) | 2019-05-25 | 2019-05-25 | Method for processing partition plate of steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159359A true CN110159359A (en) | 2019-08-23 |
| CN110159359B CN110159359B (en) | 2022-03-08 |
Family
ID=67632859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910442716.XA Expired - Fee Related CN110159359B (en) | 2019-05-25 | 2019-05-25 | Method for processing partition plate of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159359B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685754A (en) * | 2019-09-29 | 2020-01-14 | 中国航发沈阳发动机研究所 | Inner ring sectional type casing and assembling method thereof |
| CN112589377A (en) * | 2020-11-03 | 2021-04-02 | 中信重工机械股份有限公司 | Manufacturing method of assembled stationary blade partition plate of rotary drum type steam turbine |
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| FR1257841A (en) * | 1960-02-26 | 1961-04-07 | Rateau Soc | Improvement in the welding assembly of turbo-machine diaphragms |
| JPS4995218U (en) * | 1972-12-11 | 1974-08-16 | ||
| JPS59189085A (en) * | 1983-04-13 | 1984-10-26 | Hitachi Ltd | Manufacture of turbine diaphragm |
| CN101059081A (en) * | 2006-03-27 | 2007-10-24 | 阿尔斯托姆科技有限公司 | Turbine blade and diaphragm construction |
| CN102019540A (en) * | 2009-09-23 | 2011-04-20 | 上海电气电站设备有限公司 | Manufacturing method of fixed blade welding type clapboard of steam turbine |
| CN102606224A (en) * | 2011-12-19 | 2012-07-25 | 山东青能动力股份有限公司 | Impulse steam turbine welding partition board with embedded fixed blades and assembling process of impulse steam turbine welding partition board |
| CN204609953U (en) * | 2015-05-11 | 2015-09-02 | 北京全四维动力科技有限公司 | A kind of impulse carries shroud circular cone end wall bending stator blade |
| CN108457711A (en) * | 2018-04-28 | 2018-08-28 | 黎明职业大学 | A kind of new and effective welded type partition board |
| CN109202254A (en) * | 2018-03-13 | 2019-01-15 | 中国航空制造技术研究院 | A kind of electro-beam welding method of the intensive rectangle girth joint of outer ring surface |
-
2019
- 2019-05-25 CN CN201910442716.XA patent/CN110159359B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US2681788A (en) * | 1951-05-23 | 1954-06-22 | Solar Aircraft Co | Gas turbine vane structure |
| FR1257841A (en) * | 1960-02-26 | 1961-04-07 | Rateau Soc | Improvement in the welding assembly of turbo-machine diaphragms |
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| JPS59189085A (en) * | 1983-04-13 | 1984-10-26 | Hitachi Ltd | Manufacture of turbine diaphragm |
| CN101059081A (en) * | 2006-03-27 | 2007-10-24 | 阿尔斯托姆科技有限公司 | Turbine blade and diaphragm construction |
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| CN102606224A (en) * | 2011-12-19 | 2012-07-25 | 山东青能动力股份有限公司 | Impulse steam turbine welding partition board with embedded fixed blades and assembling process of impulse steam turbine welding partition board |
| CN204609953U (en) * | 2015-05-11 | 2015-09-02 | 北京全四维动力科技有限公司 | A kind of impulse carries shroud circular cone end wall bending stator blade |
| CN109202254A (en) * | 2018-03-13 | 2019-01-15 | 中国航空制造技术研究院 | A kind of electro-beam welding method of the intensive rectangle girth joint of outer ring surface |
| CN108457711A (en) * | 2018-04-28 | 2018-08-28 | 黎明职业大学 | A kind of new and effective welded type partition board |
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| Title |
|---|
| 顾自立: "《现代电力企业物资管理》", 31 January 2007 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685754A (en) * | 2019-09-29 | 2020-01-14 | 中国航发沈阳发动机研究所 | Inner ring sectional type casing and assembling method thereof |
| CN112589377A (en) * | 2020-11-03 | 2021-04-02 | 中信重工机械股份有限公司 | Manufacturing method of assembled stationary blade partition plate of rotary drum type steam turbine |
| CN112589377B (en) * | 2020-11-03 | 2022-05-17 | 中信重工机械股份有限公司 | Manufacturing method of assembled stationary blade partition plate of rotary drum type steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159359B (en) | 2022-03-08 |
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