CN107916960A - Nuclear power turbine-generator unit dual-gripper spring discharges and locking logical method and system - Google Patents
Nuclear power turbine-generator unit dual-gripper spring discharges and locking logical method and system Download PDFInfo
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- CN107916960A CN107916960A CN201711318369.7A CN201711318369A CN107916960A CN 107916960 A CN107916960 A CN 107916960A CN 201711318369 A CN201711318369 A CN 201711318369A CN 107916960 A CN107916960 A CN 107916960A
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- condenser
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- 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
- F01K13/00—General layout or general methods of operation of complete plants
-
- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F01D25/04—Antivibration 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
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of release of nuclear power turbine-generator unit dual-gripper spring and locking logical method, including：Complete to install and after carrying out water filling test in condenser, condenser is discharged water to the water heavy load distributed designed by condenser spring, discharges condenser spring；The lp outer casing of the condenser and the steam turbine is connected, condenser is poured water water weight is always run to condenser, discharges basic spring；Centering steam turbine and generator shaft, lock condenser spring and the basic spring successively, and empties the water in condenser；After completing Turbo-generator Set installation and debugging, condenser spring and the basic spring are discharged successively, to prepare to start Turbo-generator Set.The invention also discloses a kind of release of nuclear power turbine-generator unit dual-gripper spring and locking flogic system.The present invention can specify the technical requirements and release conditions of dual-gripper spring, it is ensured that effective guidance of site operation quality and progress.
Description
Technical field
The present invention relates to technical field of nuclear power, more particularly to a kind of release of nuclear power turbine-generator unit dual-gripper spring and lock
Gu logical method and system.
Background technology
Turbo-generator Set elastic foundation technical solution has frequency modulation, prevents from resonating；Antidetonation；Compensate differential settlement；Soil
The advantages such as construction valency is low, are large-scale Half Speed nuclear power turbine-generator unit mainstream Foundation selection schemes in world wide.And steam turbine
Generating set basis and condenser dual spring support technology are then wherein representative schemes, and the program advantageously reduces vapour
Turbine generator group foundation load.
Condenser spring discharges and basic spring discharges the installation main line for running through Turbo-generator Set, in order to ensure condenser
Accurate sharing of load between spring and basic spring, ensures Turbo-generator Set equipment installment quality, coordinates two branch of release
Support system is very crucial.During domestic Construction of Nuclear Electricity, steam turbine, condenser, basic spring and condenser spring usually by
Different producer's supplies of material, the installation guide file that each equipment supplier provides are confined to equipment in itself scope of supply, and from whole
Lack unified, complete condenser spring on body and basic spring coordinates release logic, release conditions are indefinite, and technical requirements are not
It is clear, cause site operation lack technology input, also often result in scene can not continuously construct, the work holdup, cause construction quality and
Progress double risks.
The content of the invention
The present invention is directed to problems of the prior art, there is provided a kind of nuclear power turbine-generator unit dual-gripper spring is released
Put and lock logical method and system, the technical requirements and release conditions of support spring can be specified, it is ensured that site operation quality
Effective with progress instructs.
The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows：
On the one hand, the present invention provides a kind of nuclear power turbine-generator unit dual-gripper spring release and locking logical method, institute
Stating Turbo-generator Set includes condenser, steam turbine and generator, and the dual-gripper spring includes condenser spring and steamer is sent out
Electric crew base spring, the described method includes：
After the condenser is completed to install and carries out water filling test, the condenser is discharged water to the condenser spring
The water heavy load of designed distribution, discharges the condenser spring；
The lp outer casing of the condenser and the steam turbine is connected, the condenser is poured water to the condenser and is always transported
Row water weight, discharges the basic spring；
The steam turbine to described in and generator shaft, lock the condenser spring and the basic spring successively, and empties
Water in the condenser；
After completing the Turbo-generator Set installation and debugging, the condenser spring and the basic bullet are discharged successively
Spring, to prepare to start the Turbo-generator Set.
Further, it is described after condenser is completed to install and carries out water filling test, the condenser is discharged water to condensing
Before the water heavy load of the designed distribution of device spring, further include：
Complete the installation of the condenser；
Review and validate the condenser spring and be in its pre-compressed state, and pour water the condenser；
The condenser is poured water to tube bank top preset height, and maintains preset duration, checks the institute of the condenser
There are housing weld seam and tube-tube plate weld seam ne-leakage, to complete water filling test.
Further, the method further includes：
Dial gauge is set up under condenser bottom plate；
In the water-pouring process of the condenser, pass through the deflection of condenser and deformation described in the centimeter check
Amount；
If the deflection of the condenser bottom plate was looked into more than the height tolerance of the first preset value or both sides condenser spring
Second preset value, then stop pouring water, and is continuing to pour water after taking measures.
Further, the condenser is discharged water to the water heavy load distributed designed by condenser spring, discharged described solidifying
Vapour device spring, specifically includes：
The condenser is discharged water to the water heavy load distributed designed by condenser spring, control the condenser spring from
Centre is discharged to both sides in symmetrical great-jump-forward；
According to the pre compressed magnitude of the condenser spring, the pad between the condenser spring and condenser bottom plate is adjusted
Piece, reaches designed elevation to adjust the condenser bottom plate；
Check and record the height of the condenser spring.
Further, the connection condenser and the lp outer casing of the steam turbine, specifically include：
Review and validate the basic spring and be in its pre-compressed state；
The condenser and the lp outer casing lower half are welded, and check the height of the condenser spring after welding
Degree；
According to the height change of the condenser spring, adjust between the condenser spring and the condenser bottom plate
Gasket, makes the condenser bottom plate reply original absolute altitude.
Further, the method further includes：
Dial gauge is set up at the basic spring in the condenser spring and lp outer casing region；
During the welding of the condenser and the lp outer casing lower half, sent out by steamer described in the centimeter check
The height change of electric crew base；
If the height change exceedes default changing value, judge that the steam turbine-generatot set foundation has sinkage, stop
Only weld job.
Further, before the steam turbine to described in and generator shaft, further include：
After the basic spring release, according to the pre compressed magnitude and platen height change of the basic spring, institute is adjusted
The gasket between basic spring and the platen is stated, capital datum mark relative elevation is changed afterwards before releasing in default model
In enclosing.
Further, after Turbo-generator Set installation and debugging is completed, discharge successively the condenser spring and
Before the basis spring, further include：
The installation and debugging of the Turbo-generator Set are completed, condensate pump is put into operation, hot well maintains normal level, makes to follow
Ring water pump bringing normally into operation.
Further, the method further includes：
In the Turbo-generator Set during normal operation, if need to shut down or stop water circulating pump, lock in advance described solidifying
Vapour device spring；Machine is opened after shutdown again, then after water circulating pump bringing normally into operation, discharges the condenser spring；
When the Turbo-generator Set is overhauled, if basic platform upper-part weight change exceedes preset weight, lock
The basis spring.
Further, the method further includes：
During the condenser is installed with the Turbo-generator Set during normal operation, if occurring in the condenser
Water is less than the situation of the water heavy load of the designed distribution of the condenser spring again, then lock the condenser spring.
On the other hand, the present invention provides one kind and realizes that the above-mentioned release of nuclear power turbine-generator unit dual-gripper spring and locking are patrolled
The system for the method for collecting, the Turbo-generator Set include condenser, steam turbine and generator, and the dual-gripper spring includes condensing
Device spring and steam turbine-generatot set foundation spring, the system comprises：
Condenser spring release module, for completing to install and after carrying out water filling test in condenser, by the condenser
Discharge water to the water heavy load distributed designed by condenser spring, discharge the condenser spring；
Basic spring release module, for connecting the lp outer casing of the condenser and the steam turbine, by the condensing
Device is poured water always runs water weight to the condenser, discharges the basic spring；
Lock fixing module, for the steam turbine to described in and generator shaft, lock the condenser spring and the base successively
Plinth spring, and empty the water in the condenser；And
The final release module of dual-gripper spring, after completing the Turbo-generator Set installation and debugging, discharges successively
The condenser spring and the basic spring, to prepare to start the Turbo-generator Set.
The beneficial effect that technical solution provided in an embodiment of the present invention is brought is：
Condenser carries out water filling test after installation is complete, discharges water after experiment to the water heavy burden distributed designed by condenser spring
Carry, the release of condenser spring, and then condenser is welded with lp outer casing, pours water after welding and water weight is always run to condenser, basis
Spring discharges, and before condenser discharges water, locking condenser spring and basic spring, so Turbo-generator Set complete installation and
After debugging, first discharge condenser spring, then discharge the basic spring, you can open machine, specify support spring technical requirements and
Release conditions, it is ensured that effective guidance of site operation quality and progress, avoids during site operation because of spring release logic not
Completely, release conditions are indefinite, technical requirements are not known and cause the live work holdup and installation quality potential risk.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the release of nuclear power turbine-generator unit dual-gripper spring and locking logical method that the embodiment of the present invention one provides
Flow diagram；
Fig. 2 is the release of nuclear power turbine-generator unit dual-gripper spring and locking logical method that the embodiment of the present invention one provides
Middle condenser load distributes schematic diagram；
Fig. 3 is the release of nuclear power turbine-generator unit dual-gripper spring and locking logical method that the embodiment of the present invention one provides
Idiographic flow schematic diagram；
Fig. 4 is the structural representation of the control system of nuclear power turbine-generator unit support spring provided by Embodiment 2 of the present invention
Figure.
Embodiment
It is endless in order to solve nuclear power turbine-generator unit dual-gripper spring release existing in the prior art and locking logic
The whole, technical problem such as release conditions are indefinite, technical requirements are not known, the present invention is intended to provide a kind of nuclear power turbine-generator unit
Dual-gripper spring discharges and locking logical method, its core concept are：Condenser carries out water filling test after installation is complete, after experiment
Discharge water to the water heavy load distributed designed by condenser spring, the release of condenser spring, and then condenser is welded with lp outer casing,
Pour water after welding and water weight is always run to condenser, basic spring release, and before condenser discharges water, lock condenser spring and base
Plinth spring, and then after Turbo-generator Set completion installation and debugging, condenser spring is first discharged, then the basic spring is discharged,
Machine can be opened, specifies the technical requirements and release conditions of support spring, it is ensured that effective guidance of site operation quality and progress.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
An embodiment of the present invention provides a kind of release of nuclear power turbine-generator unit dual-gripper spring and locking logical method, institute
Stating Turbo-generator Set includes condenser, steam turbine and generator, and the dual-gripper spring includes condenser spring and steamer is sent out
Electric crew base spring, referring to Fig. 1, this method includes：
S1, in the condenser complete to install and after carrying out water filling test, and the condenser is discharged water to the condenser
The water heavy load of the designed distribution of spring, discharges the condenser spring；
S2, the connection condenser and the lp outer casing of the steam turbine, the condenser is poured water to the condenser
Total operation water weight, discharges the basic spring；
S3, the steam turbine to described in and generator shaft, lock the condenser spring and the basic spring successively, and clearly
Water in the empty condenser；
S4, after completing the Turbo-generator Set installation and debugging, discharge the condenser spring and the basis successively
Spring, to prepare to start the Turbo-generator Set.
It should be noted that in a typical turbine LP rotors spring supporting system, steam turbine is using landing
Formula bearing, low pressure (LP) cylinder landing, foundation sole plate are supported by basic spring 2.Condenser be rigidly connected with lp outer casing to be formed one it is whole
Body, influences, condenser bottom sets condenser spring 1 and supports from pull of vacuum.Condenser is suspended on lp outer casing lower half,
72.6% load is by its own spring supporting, and 27.4% load is added on lp outer casing to be supported by basic spring 2, such as Fig. 2
Shown, which need to ensure the stability of low pressure (LP) cylinder during condenser unilateral operation, while also ensure that steam turbine will not be lifted off
Basis.Basic spring undertakes whole turbine generator machine equipment and pipe load, also to undertake condenser and be added on lp outer casing
Load.
Condenser spring discharges and basic spring release is through Turbo-generator Set installation main line, is installation of conventional island key
Path node, has a major impact Turbo-generator Set installation progress and quality.The installation of Turbo-generator Set body is broadly divided into
Three aspects, i.e.,：Condenser, steam turbine and generator.The present embodiment is systemic first, intactly proposes a kind of condenser bullet
Spring and basic spring coordinate release, the logical method of locking.
Further, it is before step S1, i.e., described after condenser is completed to install and carries out water filling test, will be described solidifying
Vapour device discharges water to before the water heavy load distributed designed by condenser spring, further includes：
Complete the installation of the condenser；
Review and validate the condenser spring and be in its pre-compressed state, and pour water the condenser；
The condenser is poured water to tube bank top preset height, and maintains preset duration, checks the institute of the condenser
There are housing weld seam and tube-tube plate weld seam ne-leakage, to complete water filling test.
It should be noted that the installation of condenser includes bank of condenser pipes housing, connects neck, is hot well, outlet pipeline, hydrophobic vertical
The installation of pipe, annex etc..Meanwhile the valve below water level line on all external pipelines is closed, these valves during water filling test
It must not leak.In addition, installation temporary support and limiting device, supporting point must be in condenser bars positions below Housing Base
On, during water filling test, condenser spring lock bolt must not loosen, i.e., the load that condenser spring is born is no more than
Precommpression load, increased additional water weight of pouring water are supported by temporary support and limiting device.
Need to carry out water filling test after the completion of condenser and annex scene welding equipment, to examine housing and tube-tube plate weld seam matter
Amount, ensures condenser tightness.Water filling test uses clean water, height of pouring water preset height, such as 1m above top layer heat exchanger tube.
In water-pouring process, condenser pour water to distribute designed by condenser spring water heavy load (it is related with type, this
Embodiment is 168t) when, pause is poured water, and measures condenser spring heights.Condenser, which is poured water to condenser, always runs water weight (with machine
Type is related, the present embodiment 568t) when, pause is poured water, and measures spring heights.Condenser is poured water to tube bank top preset height,
During such as 1m, stop pouring water, measure condenser spring heights, and maintain preset duration when small (generally 24), check all housings
Weld seam and tube-tube plate weld seam ne-leakage, that is, complete water filling test.After the completion of condenser water filling test, it can discharge water to condenser bullet
The water heavy load (can be judged according to liquid level in hot well) of the designed distribution of spring, does for the release of next step condenser spring
It is good to prepare.
Further, the method further includes：
Dial gauge is set up under condenser bottom plate；
In the water-pouring process of the condenser, pass through the deflection of condenser and deformation described in the centimeter check
Amount；
If the deflection of the condenser bottom plate was looked into more than the height tolerance of the first preset value or both sides condenser spring
Second preset value, then stop pouring water, and is continuing to pour water after taking measures.
It should be noted that setting up dial gauge under condenser bottom plate, condenser deflection and deformation are monitored in water-pouring process
Amount, if bottom deformation is more than the first preset value (generally 2mm), pause water inlet, or if spring both sides deviation of reading
More than the second preset value (generally 3mm), then pause water inlet, analyzes reason and can continue to pour water after taking measures.
Further, the condenser is discharged water to the water heavy load distributed designed by condenser spring, discharged described solidifying
Vapour device spring, specifically includes：
The condenser is discharged water to the water heavy load distributed designed by condenser spring, control the condenser spring from
Centre is discharged to both sides in symmetrical great-jump-forward；
According to the pre compressed magnitude of the condenser spring, the pad between the condenser spring and condenser bottom plate is adjusted
Piece, reaches designed elevation to adjust the condenser bottom plate；
Check and record the height of the condenser spring.
It should be noted that before the release of condenser spring, it need to first meet prerequisite：Bank of condenser pipes module assembled is complete
Into, connect the completion of neck welding equipment, duplex it is low plus, the installation of all component such as extraction line, hydroecium it is in place；All condenser external pipes break
Connection is opened, if any expansion joint, then needs to unclamp expansion joint caging bolt, it is ensured that condenser is from external force；Condenser water filling test is complete
Into, and the water heavy load (related with type, the present embodiment 168t) of the designed distribution of condenser spring is left in condenser.
And then condenser spring lock bolt is unlocked, discharge condenser spring.The release of condenser spring order from centre to
The symmetrical great-jump-forward release in both sides, reduces the stress that release produces to greatest extent.Gasket is pumped according to spring pre compressed magnitude, adjustment is solidifying
Vapour device floor level, it is allowed to error ± 1mm, condenser relative altitude error ± 5mm.Each condenser spring heights of inspection record,
The elemental height characterize units' installation complete after, open the load under spring cold conditions before machine.In addition, installed in condenser
Cheng Zhong, as long as water is less than the water heavy load of the designed distribution of condenser spring in condenser, it is necessary to lock condenser spring.
Further, in step s 2, the lp outer casing of the condenser and the steam turbine is connected, is specifically included：
Review and validate the basic spring and be in its pre-compressed state；
The condenser and the lp outer casing lower half are welded, and check the height of the condenser spring after welding
Degree；
According to the height change of the condenser spring, adjust between the condenser spring and the condenser bottom plate
Gasket, makes the condenser bottom plate reply original absolute altitude.
It should be noted that before condenser is connected with lp outer casing, the total weight of lp outer casing (including outside low pressure
Cylinder upper half) it should fall on steam turbine-generatot set foundation, check that basic spring is in locking condition.Condenser water filling test is completed
Afterwards, discharge water to the water heavy load (related with type, the present embodiment 168t) distributed designed by condenser spring, condenser spring
It is in the unlocked state.Condenser spring undertakes design load at this time, including condenser net weight, low plus net weight add adjustment water weight,
That is 798+94+168=1060t.
Implement condenser to weld with lp outer casing lower half, condenser is connected with lp outer casing.After the completion of welding, detection
Condenser spring heights, change increase and decrease adjust pad according to condenser spring heights, spring heights is returned to original absolute altitude.Root
According to engineering experience, condenser can shrink 2-3mm with lp outer casing weld seam.If condenser spring is in locking condition, then because
Weld contraction, whole condenser weight (including low adduction adjustment water weight, common 1060t) are all suspended on lp outer casing, cause
The local overload in Steam Turbine basis, while excessive tension be easy to cause weld seam tear.Therefore condenser is welded with lp outer casing
Need first to discharge condenser spring before connecing.Weld contraction, condenser spring " are sprung back " therewith, and condenser major part weight is still by spring
Undertake, avoid adversely affecting basis and weld seam.
Further, the method further includes：
Dial gauge is set up at the basic spring in the condenser spring and lp outer casing region；
During the welding of the condenser and the lp outer casing lower half, sent out by steamer described in the centimeter check
The height change of electric crew base；
If the height change exceedes default changing value, judge that the steam turbine-generatot set foundation has sinkage, stop
Only weld job.
It should be noted that in condenser and lp outer casing lower half welding process, dial gauge is monitored, once find steamer
There is sinkage on generating set basis, stops weld job immediately.After the completion of welding, condenser and basic dial gauge are checked.
In step s 2, discharging basic spring has prerequisite：It is arranged in equipment on steam turbine-generatot set foundation, pipe
In place (including simulation insulation weight), all wt is (all to load the component not loaded on the basis of being carried in road
Weight is no more than 100t)；High pressure cylinder pipeline, stop valve and the connection of main steam lead road finish, and low pressure (LP) cylinder pipeline stays last
Road weld bond；High pressure cylinder sharing of load is completed；Turbine shafting essence looks for middle completion；Basic spring is in its pre-compressed state；Condenser
Pour water to condenser and always run water weight (related with type, the present embodiment 568t)；Condenser lock bolt is unclamped, makes condenser
Spring is in free state, repetition measurement condenser absolute altitude, and is contrasted with original absolute altitude, error such as occurs again by spring heights tune
It is whole to arrive reset condition.
And then basic spring lock bolt is unlocked, discharge basic spring.Basic spring release is that a circulation is progressive, anti-
The whole process of polyphony.
Further, before the steam turbine described in described pair and generator shaft, further include：
After the basic spring release, according to the pre compressed magnitude and platen height change of the basic spring, institute is adjusted
The gasket between basic spring and the platen is stated, capital datum mark relative elevation is changed afterwards before releasing in default model
In enclosing.
It should be noted that pumping gasket according to basic spring pre compressed magnitude and platen height change, measure capital
Datum mark relative elevation changes in preset range (generally ± 0.3mm) afterwards before releasing, to ensure turbine shafting precision.
Meanwhile record basic spring heights.
In step s3, after during the final essence of Turbo-generator Set is looked for, basic spring and condenser spring heights, unit are marked
Easy to monitoring spring heights change during operation.Moreover, before condenser discharges water, must first lock basic spring and condenser bullet again
Spring.
It should be noted that water always runs water less than condenser and weighs that (related with type, the present embodiment is in the condenser
, must the basic spring of locking when 568t)；(lp outer casing is such as hung when basic platform upper-part weight change is more than 100t), palpus
First lock basic spring.
Further, before step S 4, i.e., released successively after the completion Turbo-generator Set installation and debugging
Before putting the condenser spring and the basic spring, further include：
The installation and debugging of the Turbo-generator Set are completed, condensate pump is put into operation, hot well maintains normal level, makes to follow
Ring water pump bringing normally into operation.
It should be noted that before Turbo-generator Set red switch, last time discharges condenser spring and basic spring, makes
It is in free working status.Release order is rear to discharge basic spring first to discharge condenser spring.And released in condenser spring
Before putting, all installation is complete for Turbo-generator Set equipment and annex, and coupling of shaft system is completed, and platform weight is all in place；Condensation water
Pump puts into operation, and hot well maintains normal level；Water circulating pump bringing normally into operation (hydroecium liquid level gauge shows that hydroecium is full of water), at this time, condensing
Device spring bears design load.
Further, the method further includes：
In the Turbo-generator Set during normal operation, if need to shut down or stop water circulating pump, lock in advance described solidifying
Vapour device spring；Machine is opened after shutdown again, then after water circulating pump bringing normally into operation, discharges the condenser spring；
When the Turbo-generator Set is overhauled, if basic platform upper-part weight change exceedes preset weight, lock
The basis spring.
Further, the method further includes：
During the condenser is installed with the Turbo-generator Set during normal operation, if occurring in the condenser
Water is less than the situation for the water heavy load that the condenser spring is distributed again, then lock the condenser spring.
It should be noted that Turbo-generator Set is during normal operation, condenser spring and basic spring are in release shape
State, bears rated load.If needing Turbo-generator Set to shut down or stop water circulating pump, need to lock condenser spring in advance；After shutdown
Machine is opened again, after two water circulating pump bringing normally into operation (condenser is full of water), can discharge condenser spring.Compressor emergency shutdown overhauls
When, if basic platform upper-part weight change must first lock basic spring more than 100t.Turbo-generator Set is sent out during running
Situations such as raw chaser, it is not required to lock basic spring.When again water is less than the water heavy burden distributed designed by condenser spring in condenser
When carrying (related with type, the present embodiment 168t), then condenser spring must be locked, prevents that cylinder from being jacked up.
It is nuclear power turbine-generator unit dual-gripper spring release provided in an embodiment of the present invention and locking logic referring to Fig. 3
The idiographic flow schematic diagram of method, this method include：
S01, jump to step S07 after performing step S11 to S18 in condenser side；
S02, jump to step S06 after performing step S21 to S25 in the low-voltage module side of steam turbine；
S03, jump to step S06 after performing step S31 to S33 in the high-pressure modular side of steam turbine；
S04, jump to step S06 after generator side performs step S41 to S44；
S05, lp outer casing button cylinder, and jump to step S07；
During S06, shafting essence are looked for；
S07, basic spring release.
Wherein, the step S11 to S18 performed in condenser side includes：
It is S11, bank of condenser pipes block combiner, in place；
S12, condenser throat weld assembly are all in place；
S13, condenser water filling test are poured water to tube bank above 1m；
S14, condenser discharge water to 168t；
S15, condenser spring discharge adjustment first, record spring heights；
S16, condenser and lp outer casing connect；
S17, adjustment condenser spring to original height；
S18, condenser are poured water to 568t.
Include in the step S21 to S25 that the low-voltage module side of steam turbine performs：
Lower half combination is in place on S21, lp outer casing, is welded with condenser；
S22, low-pressure internal cylinder are in place, centering；
S23, low pressure rotor lifting are in place；
S24, the tight bolt of low-pressure internal cylinder buckle closure heat；
S25, low-pressure internal cylinder sharing of load.
Include in the step S31 to S33 that the high-pressure modular side of steam turbine performs：
S31, high-pressure modular are in place, centering；
S32, high pressure cylinder Pipe installing；
S33, high pressure cylinder sharing of load.
Include in the step S41 to S44 that generator side performs：
S41, stator hoisting are in place；
S42, generator wear rotor；
S43, exciter are in place；
S44, hydrogen cooler installation.
The embodiment of the present invention can carry out water filling test after installation is complete in condenser, discharge water after experiment to condenser spring
The water heavy load of designed distribution, the release of condenser spring, and then condenser is welded with lp outer casing, is poured water after welding to condensing
Device always runs water weight, basic spring release, and before condenser discharges water, lock condenser spring and basic spring, and then steamer
After generating set completes installation and debugging, condenser spring is first discharged, then discharges the basic spring, you can opens machine, clearly props up
Support the technical requirements and release conditions of spring, it is ensured that effective guidance of site operation quality and progress, avoids site operation process
It is middle to cause the live work holdup and installation matter because spring release logic is imperfect, release conditions are indefinite, technical requirements are not known
Measure potential risk.
Embodiment two
Realize that the above-mentioned release of nuclear power turbine-generator unit dual-gripper spring and locking are patrolled an embodiment of the present invention provides one kind
The system for collecting all flows of method, the Turbo-generator Set include condenser, steam turbine and generator, the dual-gripper spring
Including condenser spring and steam turbine-generatot set foundation spring, referring to Fig. 4, the system comprises：
Condenser spring release module 41, for completing to install and after carrying out water filling test in condenser, by the condensing
Device discharges water to the water heavy load distributed designed by condenser spring, discharges the condenser spring；
Basic spring release module 42, will be described solidifying for connecting the lp outer casing of the condenser and the steam turbine
Vapour device is poured water always runs water weight to the condenser, discharges the basic spring；
Lock fixing module 43, for the steam turbine to described in and generator shaft, lock the condenser spring and described successively
Basic spring, and empty the water in the condenser；And
The final release module 44 of dual-gripper spring, after completing the Turbo-generator Set installation and debugging, is released successively
The condenser spring and the basic spring are put, to prepare to start the Turbo-generator Set.
The embodiment of the present invention can carry out water filling test after installation is complete in condenser, discharge water after experiment to condenser spring
The water heavy load distributed, the release of condenser spring, and then condenser is welded with lp outer casing, is poured water after welding total to condenser
Water weight, basic spring release are run, and before condenser discharges water, lock condenser spring and basic spring, and then turbine generator
After unit completes installation and debugging, condenser spring is first discharged, then discharges the basic spring, you can opens machine, clearly supports bullet
The technical requirements and release conditions of spring, it is ensured that effective guidance of site operation quality and progress, avoid during site operation because
Spring release logic is imperfect, release conditions are indefinite, technical requirements are not known and cause the live work holdup and installation quality to be dived
In risk.
In conclusion the present invention proposes a kind of nuclear power turbine-generator unit dual-gripper spring release and locking logical method
And system, it is with preferable practical function：First systematicness, intactly propose Turbo-generator Set installation, debugging and fortune
Row order section condenser spring and basic spring discharge, the logical method of locking；The technology for specifying condenser water filling test process will
Point and corresponding condenser spring Stateful Inspection requirement, condenser spring discharge prerequisite and technical requirements first, condenser
To lp outer casing interconnection technique requirement and corresponding condenser spring Stateful Inspection requirement, basic spring discharge first prerequisite with
When technical requirements, carry out condenser spring before unit red switch and basic spring finally discharges work, during Unit Commitment machine
When spring locking and release work are carried out；Using first release condenser spring, then carry out condenser and welded with lp outer casing cylinder
The method connect, avoids the local overload of weld seam tear and basis between condenser and lp outer casing；Using steam turbine and condensing
Device is installed respectively, first release condenser spring, and after lp outer casing and condenser cylinder, the totality for finally discharging basic spring again is patrolled
Thinking is collected, easy to accurately simulate the distribution of condenser load；Condenser spring adjustment height error ± 1mm is controlled, so as to avoid coagulating
Vapour device bottom deformation；Steam turbine basis spring alignment error ± 0.3mm is controlled, to ensure turbine shafting precision.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of nuclear power turbine-generator unit dual-gripper spring release and locking logical method, the Turbo-generator Set include solidifying
Vapour device, steam turbine and generator, the dual-gripper spring include condenser spring and steam turbine-generatot set foundation spring, its feature
It is, the described method includes：
Complete to install and after carrying out water filling test in the condenser, the condenser is discharged water to set by the condenser spring
The water heavy load that score is matched somebody with somebody, discharges the condenser spring；
The lp outer casing of the condenser and the steam turbine is connected, the condenser is poured water and always runs water to the condenser
Weight, discharges the basic spring；
The steam turbine to described in and generator shaft, lock the condenser spring and the basic spring successively, and empties described
Water in condenser；
After completing the Turbo-generator Set installation and debugging, the condenser spring and the basic spring are discharged successively, with
Prepare to start the Turbo-generator Set.
2. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In, it is described after condenser is completed to install and carries out water filling test, the condenser is discharged water to score set by condenser spring
Before the water heavy load matched somebody with somebody, further include：
Complete the installation of the condenser；
Review and validate the condenser spring and be in its pre-compressed state, and pour water the condenser；
The condenser is poured water to tube bank top preset height, and maintains preset duration, checks all shells of the condenser
Body weld seam and tube-tube plate weld seam ne-leakage, to complete water filling test.
3. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 2 and locking logical method, its feature exist
In the method further includes：
Dial gauge is set up under condenser bottom plate；
In the water-pouring process of the condenser, pass through the deflection and deflection of condenser described in the centimeter check；
If the deflection of the condenser bottom plate looked into second more than the height tolerance of the first preset value or both sides condenser spring
Preset value, then stop pouring water, and is continuing to pour water after taking measures.
4. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In, it is described that the condenser discharges water to the water heavy load distributed designed by condenser spring, the condenser spring is discharged, is had
Body includes：
The condenser is discharged water to the water heavy load distributed designed by condenser spring, controls the condenser spring from centre
Discharged to both sides in symmetrical great-jump-forward；
According to the pre compressed magnitude of the condenser spring, the gasket between the condenser spring and condenser bottom plate is adjusted, with
Adjust the condenser bottom plate and reach designed elevation；
Check and record the height of the condenser spring.
5. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 4 and locking logical method, its feature exist
In the connection condenser and the lp outer casing of the steam turbine, specifically include：
Review and validate the basic spring and be in its pre-compressed state；
The condenser and the lp outer casing lower half are welded, and check the height of the condenser spring after welding；
According to the height change of the condenser spring, the pad between the condenser spring and the condenser bottom plate is adjusted
Piece, makes the condenser bottom plate reply original absolute altitude.
6. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 5 and locking logical method, its feature exist
In the method further includes：
Dial gauge is set up at the basic spring in the condenser spring and lp outer casing region；
During the welding of the condenser and the lp outer casing lower half, pass through steam turbine generator described in the centimeter check
The height change on group basis；
If the height change exceedes default changing value, judge that the steam turbine-generatot set foundation has sinkage, stop weldering
Connect operation.
7. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In before the steam turbine described in described pair and generator shaft, further including：
After the basic spring release, according to the pre compressed magnitude and platen height change of the basic spring, the base is adjusted
Gasket between plinth spring and the platen, makes capital datum mark relative elevation change afterwards in preset range before releasing
It is interior.
8. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In, it is described complete Turbo-generator Set installation and debugging after, discharge the condenser spring and the basic bullet successively
Before spring, further include：
The installation and debugging of the Turbo-generator Set are completed, condensate pump is put into operation, hot well maintains normal level, makes recirculated water
Pump bringing normally into operation.
9. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In the method further includes：
In the Turbo-generator Set during normal operation, if need to shut down or stop water circulating pump, lock the condenser in advance
Spring；Machine is opened after shutdown again, then after water circulating pump bringing normally into operation, discharges the condenser spring；
When the Turbo-generator Set is overhauled, if basic platform upper-part weight change exceedes preset weight, described in locking
Basic spring.
10. nuclear power turbine-generator unit dual-gripper spring release as claimed in claim 1 and locking logical method, its feature exist
In the method further includes：
During the condenser is installed with the Turbo-generator Set during normal operation, if there is water weight in the condenser
Less than the situation of the water heavy load distributed designed by the condenser spring, then lock the condenser spring.
11. one kind is realized as claims 1 to 10 any one of them nuclear power turbine-generator unit dual-gripper spring discharges and locks
Gu the system of logical method, the Turbo-generator Set includes condenser, steam turbine and generator, and the dual-gripper spring includes
Condenser spring and steam turbine-generatot set foundation spring, it is characterised in that the system comprises：
Condenser spring release module, for after condenser is completed to install and carries out water filling test, the condenser to be discharged water
To the water heavy load distributed designed by condenser spring, the condenser spring is discharged；
Basic spring release module, for connecting the lp outer casing of the condenser and the steam turbine, the condenser is filled
Water to the condenser always runs water weight, discharges the basic spring；
Lock fixing module, for the steam turbine to described in and generator shaft, lock the condenser spring and the basic bullet successively
Spring, and empty the water in the condenser；And
The final release module of dual-gripper spring, after completing the Turbo-generator Set installation and debugging, successively described in release
Condenser spring and the basic spring, to prepare to start the Turbo-generator Set.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711318369.7A CN107916960A (en) | 2017-12-12 | 2017-12-12 | Nuclear power turbine-generator unit dual-gripper spring discharges and locking logical method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711318369.7A CN107916960A (en) | 2017-12-12 | 2017-12-12 | Nuclear power turbine-generator unit dual-gripper spring discharges and locking logical method and system |
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Application publication date: 20180417 |