CN110145375A - It is a kind of to solve the swollen difference of turbine low pressure cylinder big method and equipment therefor - Google Patents
It is a kind of to solve the swollen difference of turbine low pressure cylinder big method and equipment therefor Download PDFInfo
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- CN110145375A CN110145375A CN201910541320.0A CN201910541320A CN110145375A CN 110145375 A CN110145375 A CN 110145375A CN 201910541320 A CN201910541320 A CN 201910541320A CN 110145375 A CN110145375 A CN 110145375A
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- rotor
- pressure cylinder
- cylinder
- intermediate pressure
- high intermediate
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 244000082490 Proboscidea louisianica Species 0.000 claims description 26
- 235000015926 Proboscidea louisianica ssp. fragrans Nutrition 0.000 claims description 26
- 235000015925 Proboscidea louisianica subsp. louisianica Nutrition 0.000 claims description 26
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
Abstract
A kind of method and equipment therefor that the solution swollen difference of turbine low pressure cylinder being related to steam turbine technology field is big, rotor is lifted into 0.4-0.5mm by rotor journal lifting device, both the outer wall of rotor will not be made to contact with the inner wall of high intermediate pressure cylinder, rotor protection watt can be removed again, rotor outer wall and the spacing of high intermediate pressure cylinder inner wall are bigger at this time, after jack stand high intermediate pressure cylinder 1.0-1.5mm, preceding case can be skidded off and sliding pin is handled, to solve the problems, such as that the swollen difference of turbine low pressure cylinder is big, therefore when implementing this method, it does not need to open high intermediate pressure cylinder, so that operation construction period is reduced, and maintenance cost is also saved.
Description
Technical field
The present invention relates to steam turbine technology field, more particularly, to a kind of method that the solution swollen difference of turbine low pressure cylinder is big and
Equipment therefor.
Background technique
Well known, steam turbine is the capital equipment of modern thermal power plant, but steam turbine is during the work time, due to
The sliding capability of sliding key system or bearing platen is poor, the case where bite easily occurs, so that it is big turbine low pressure cylinder swollen difference occur
Situation, and then the normal work of steam turbine is influenced, even the components such as steam turbine inner rotator, cylinder can be caused to damage when serious
Wound；Tradition solves the big method of the swollen difference of turbine low pressure cylinder, and steam turbine disintegrates first, opens the cylinder pressure outside rotor, Zhi Houqu
Rotor out, and high intermediate pressure cylinder is lifted, preceding case is finally skidded off, the sliding pin for bite occur to preceding box body bottom is handled；But
It is after solving the problems, such as the swollen difference of low pressure (LP) cylinder by this method, to need again to load Steam Turbine, then need in an assembling process
Packing is readjusted, and recalibrates the isostructural center of rotor partition, to keep entire operation construction period longer, due to vapour
Turbine carries out disassembly and needs the cooperation of various other equipment, therefore keeps maintenance expense very high；In conclusion currently on the market
Need it is a kind of can operation construction period be short, maintenance cost is low solves the big method of the swollen difference of turbine low pressure cylinder.
Summary of the invention
In order to overcome the shortcomings in the background art, the invention discloses a kind of methods that the solution swollen difference of turbine low pressure cylinder is big
And equipment therefor.
For achieving the above object, the present invention adopts the following technical scheme:
It is a kind of to solve the swollen difference of turbine low pressure cylinder big method and equipment therefor, comprising the following steps:
Step 1: a rotor journal lifting device to match with the diameter of axle of rotor is respectively set at the both ends of rotor；
Step 2: the both ends of rotor are promoted into 0.4-0.5mm, and the height of two ends of rotor simultaneously by two rotor journal lifting devices
Degree difference is not more than 0.05mm；
Step 3: the rotor journal after promotion is fixed, and removes rotor protection watt；
Step 4: will lift 1.0-1.5mm using jack on high intermediate pressure cylinder, remove the support adjustment below two cylinder ram's horn head ends
Cushion block, and the preceding case of two ends of rotor is skidded off；
Step 5: placing a support at case supporting platen before two respectively, after the horizontality for adjusting support, unclamps jack,
Make cylinder ram's horn by seat supports；
Step 6: bite processing is carried out to the sliding pin in preceding bottom portion；
The big method equipment therefor of the above-mentioned swollen difference of solution turbine low pressure cylinder includes rotor, preceding case and preceding case supporting platen；It is described
The axle body of rotor is arranged with high intermediate pressure cylinder, and rotor protection watt, the both ends of rotor are equipped between the axle body and high intermediate pressure cylinder of rotor
End respectively with one before case be correspondingly connected with, the top surface of case supporting platen before case is respectively placed in one before two, and two axis of rotor
A rotor lifting device is respectively equipped at neck；The lower section of the high intermediate pressure cylinder is equipped with jack, and the both ends of the surface of high intermediate pressure cylinder are distinguished
Two cylinder ram's horns are fixed with, company is held with corresponding preceding clamp in the one end of two cylinder ram's horns far from high intermediate pressure cylinder positioned at same end face
It connects, bottom faces of the cylinder ram's horn far from high intermediate pressure cylinder one end are corresponding with a support adjustment top surface for cushion block respectively to be contradicted, support
Adjustment cushion block is installed on the top surface of corresponding preceding case supporting platen, is respectively equipped with one on the outside of case supporting platen before two and is used to support gas
The support of cylinder ram's horn；
Preferably, the rotor lifting device of described step one kind includes support plate, two hydraulic cylinders, two lift levers and bottom plate；Institute
State two hydraulic cylinders and be respectively perpendicular the top surface for being installed on a cylinder ram's horn head end, the both ends of support plate respectively with a hydraulic cylinder
Telescopic end be correspondingly connected with, two lift levers are vertically positioned at the two sides of rotor cylinder respectively, and two lift levers are located at same vertical plane, two
The top of lift lever is corresponding with support plate to be fixedly connected, and the bottom end of two lift levers is corresponding with a bottom plate to be fixedly connected, bottom plate with mention
Rising stem is corresponding vertical, and the top surface of bottom plate is equipped with the gasket of adaptation corresponding with the axle journal of rotor；
Preferably, the bottom faces of the support plate are equipped with dial gauge, and the measuring rod of dial gauge is corresponding with lift lever parallel, and measure
The end of bar and the cylinder of rotor it is corresponding contradict；
Preferably, the top surface of the support is equipped with the groove of adaptation corresponding with cylinder ram's horn.
Due to the adoption of the technical scheme as described above, the invention has the following beneficial effects:
A kind of method and equipment therefor and equipment therefor that the solution swollen difference of turbine low pressure cylinder is big disclosed by the invention, passes through rotor
Rotor is lifted 0.4-0.5mm by axle journal lifting device, not only the outer wall of rotor will not be made to contact with the inner wall of high intermediate pressure cylinder, but also can
Rotor protection watt is removed, rotor outer wall and the spacing of high intermediate pressure cylinder inner wall are bigger at this time, pass through jack stand high intermediate pressure cylinder
After 1.0-1.5mm, preceding case can be skidded off and sliding pin is handled, thus solve the problems, such as that the swollen difference of turbine low pressure cylinder is big,
Therefore it when implementing this method, does not need to open high intermediate pressure cylinder, so that operation construction period is reduced, and maintenance cost
It is saved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is another structural schematic diagram of the invention.
In figure: 1, rotor；2, rotor protection watt；3, high intermediate pressure cylinder；4, cylinder ram's horn；5, support adjustment cushion block；6, preceding case；
7, preceding case supporting platen；8, support plate；9, fixing seat；10, lift lever；11, bottom plate；12, gasket；13, dial gauge；14, it measures
Bar.
Specific embodiment
By the following examples can the detailed explanation present invention, the open purpose of the present invention is intended to protect model of the present invention
Enclose all interior technological improvements.
A kind of method that the swollen difference of processing turbine low pressure cylinder becomes larger and equipment therefor in conjunction with described in attached drawing 1-2, including with
Lower step:
Step 1: a rotor journal lifting device to match with the diameter of axle of rotor 1 is respectively set at the both ends of rotor 1；
Step 2: the both ends of rotor 1 are promoted into 0.4-0.5mm simultaneously by two rotor journal lifting devices, the both ends of rotor 1 are same
Shi Tisheng can prevent the height difference due to 1 both ends of rotor too big, to make the interior of the outside wall surface of rotor 1 and high intermediate pressure cylinder 3
Wall surface is in contact, and causes the damage of rotor 1, and the difference in height at 1 both ends of rotor is not more than 0.05mm；
Step 3: can be fixed 1 axle journal of rotor after promotion by rotor journal lifting device, then remove rotor protection watt
2；
Step 4: will lift 1.0-1.5mm on high intermediate pressure cylinder 3 using jack, make clamp high intermediate pressure cylinder 3 cylinder ram's horn 4 also with
Rising, then remove below two cylinder ram's horn head ends support adjustment cushion block 5, occur between cylinder ram's horn 4 and preceding case 6 at this time
Gap, so that the preceding case 6 at 1 both ends of rotor be skidded off；
Step 5: placing a support at case supporting platen 7 before two respectively, after the horizontality for adjusting support, unclamps jack,
Make cylinder ram's horn 4 by seat supports；
Step 6: finally carrying out bite processing to the sliding pin of 6 bottom of preceding case skidded off, so that it is big to solve the swollen difference of turbine low pressure cylinder
The problem of；
The big method equipment therefor of the above-mentioned swollen difference of solution turbine low pressure cylinder includes rotor 1, preceding case 6 and preceding case supporting platen 7；
The axle body of the rotor 1 is arranged with high intermediate pressure cylinder 3, and rotor protection watt 2 is equipped between the axle body of rotor 1 and high intermediate pressure cylinder 3, turns
The both ends end of son 1 respectively with one before case 6 be correspondingly connected with, the top surface of case supporting platen 7 before case 6 is respectively placed in one before two,
And a rotor lifting device is respectively equipped at two axle journals of rotor 1；In addition, the rotor lifting device includes support plate 8, two liquid
Compressing cylinder 9, two lift levers 10 and bottom plate 11；Two hydraulic cylinder 9 is respectively perpendicular the top for being installed on 4 head end of a cylinder ram's horn
Face, the both ends of support plate 8 are corresponding with the top surface of hydraulic cylinder 9 to be fixedly connected, and two lift levers 10 are vertically positioned at 1 column of rotor respectively
The two sides in face, and two lift levers 10 are located at same vertical plane, the top of two lift levers 10 is corresponding with support plate 8 to be fixedly connected, and is passed through
Two hydraulic cylinders 9 jack up support plate 8 simultaneously, to make support plate is corresponding lift lever 10 and bottom plate 11 is driven to rise, and then lift
The case where movement can prevent lift lever 10 from rotor 1 being caused to tilt when rising while one end of rotor and hydraulic cylinder 9, two
The bottom end of lift lever 10 is corresponding with a bottom plate 11 to be fixedly connected, and bottom plate 11 is corresponding with lift lever 10 vertical, the top surface of bottom plate 11
Gasket 12 equipped with adaptation corresponding with the axle journal of rotor 1, and gasket 12 can prevent rotor in the top surface activity of bottom plate 11, rise
To the effect of positioning；The lower section of high intermediate pressure cylinder 3 is equipped with jack, and the both ends of the surface of high intermediate pressure cylinder 3 are fixed with two cylinder cats respectively
Pawl 4, the one end of two cylinder ram's horns 4 far from high intermediate pressure cylinder positioned at same end face are clamped and connected with corresponding preceding case 6, cylinder ram's horn 4
Bottom faces far from 3 one end of high intermediate pressure cylinder are corresponding with a support adjustment top surface for cushion block 5 respectively to be contradicted, support adjustment cushion block 5
It is installed on the top surface of corresponding preceding case supporting platen 7；
As needed, the bottom faces of the support plate 8 are equipped with dial gauge 13, and the measuring rod 14 of dial gauge 13 is corresponding with lift lever 10
In parallel, and the end of measuring rod 14 it is corresponding with the cylinder of rotor 1 contradict, can be accurately measured on rotor 1 by dial gauge 13
Lift to obtain height, thus prevent it is excessively high due to being lifted on rotor 1, to make 1 outside wall surface of rotor is corresponding with the inner wall of high intermediate pressure cylinder 3 to connect
Touching, and then rotor 1 is caused to damage；A support for being used to support cylinder ram's horn 4 is respectively equipped with before two on the outside of case supporting platen 7,
It can be by the fixed support of cylinder ram's horn 4, to play a supporting role to the high intermediate pressure cylinder 3 after release jack by the support.
Part not in the detailed description of the invention is the prior art.
Claims (5)
1. a kind of solve the swollen difference of turbine low pressure cylinder big method and equipment therefor, it is characterized in that: the following steps are included:
Step 1: a rotor journal lifting device to match with the diameter of axle of rotor (1) is respectively set at the both ends of rotor (1)；
Step 2: the both ends of rotor (1) are promoted into 0.4-0.5mm, and rotor (1) two simultaneously by two rotor journal lifting devices
The difference in height at end is not more than 0.05mm；
Step 3: rotor (1) axle journal after promotion is fixed, and removes rotor protection watt (2)；
Step 4: 1.0-1.5mm will be lifted on high intermediate pressure cylinder (3) using jack, removes the support below cylinder ram's horn (4) head end
It adjusts cushion block (5), and the preceding case (6) at rotor (1) both ends is skidded off；
Step 5: placing a support at case supporting platen (7) before two respectively, after the horizontality for adjusting support, unclamps very heavy
Top, makes cylinder ram's horn (4) by seat supports；
Step 6: bite processing is carried out to the sliding pin of preceding case (6) bottom.
2. the big method equipment therefor of the swollen difference of turbine low pressure cylinder is solved as described in claim 1, it is characterized in that: including rotor
(1), preceding case (6) and preceding case supporting platen (7)；The axle body of the rotor (1) is arranged with high intermediate pressure cylinder (3), and the axis of rotor (1)
Rotor protection watt (2) are equipped between body and high intermediate pressure cylinder (3), the both ends end of rotor (1) is corresponding with case before one (6) respectively to be connected
It connects, the top surface (7) of case supporting platen before case (6) is respectively placed in one before two, and is respectively equipped with one at two axle journals of rotor (1)
Rotor lifting device；The lower section of the high intermediate pressure cylinder (3) is equipped with jack, and the both ends of the surface of high intermediate pressure cylinder (3) are fixed with respectively
Two cylinder ram's horns (4), the two cylinder ram's horns (4) positioned at same end face are pressed from both sides far from the one end of high intermediate pressure cylinder (3) with corresponding preceding case (6)
Connection is held, bottom faces of the cylinder ram's horn (4) far from high intermediate pressure cylinder (3) one end adjust the top surface of cushion block (5) with a support respectively
It is corresponding to contradict, support adjustment cushion block (5) be installed on it is corresponding before case supporting platen (7) top surface, case supporting platen (7) is outside before two
Side is respectively equipped with a support for being used to support cylinder ram's horn (4).
3. the big method of the swollen difference of turbine low pressure cylinder is solved as claimed in claim 2, it is characterized in that: the rotor lifting device
Include support plate (8), two hydraulic cylinders (9), two lift levers (10) and bottom plate (11)；Two hydraulic cylinder (9) is respectively perpendicular
It is installed on the top surface of cylinder ram's horn (4) head end, the bottom faces both ends of support plate (8) are stretched with a hydraulic cylinder (9) respectively
Contracting end is correspondingly connected with, and two lift levers (10) are vertically positioned at the two sides of rotor (1) cylinder respectively, and two lift levers (10) are positioned at same
Vertical plane, the top of two lift levers (10) is corresponding with support plate (8) to be fixedly connected, the bottom end and a bottom plate (11) of two lift levers (10)
Correspondence is fixedly connected, and bottom plate (11) is corresponding with lift lever (10) vertical, and the top surface of bottom plate (11) is equipped with the axle journal with rotor (1)
The gasket (12) of corresponding adaptation.
4. the big method of the swollen difference of turbine low pressure cylinder is solved as claimed in claim 3, it is characterized in that: the support plate (8)
Bottom faces are equipped with dial gauge (13), and the measuring rod (14) of dial gauge (13) is corresponding with lift lever (10) parallel, and measuring rod (14)
End it is corresponding with the cylinder of rotor (1) contradict.
5. the big method of the swollen difference of turbine low pressure cylinder is solved as described in claim 1, it is characterized in that: the top surface of the support
Groove equipped with adaptation corresponding with cylinder ram's horn (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541320.0A CN110145375B (en) | 2019-06-21 | 2019-06-21 | Method for solving problem of large expansion difference of low-pressure cylinder of steam turbine and device used by method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541320.0A CN110145375B (en) | 2019-06-21 | 2019-06-21 | Method for solving problem of large expansion difference of low-pressure cylinder of steam turbine and device used by method |
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| CN110145375A true CN110145375A (en) | 2019-08-20 |
| CN110145375B CN110145375B (en) | 2024-04-09 |
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