CN106812670B - The construction method for hanging of large-scale wind electricity equipment under Mountain Conditions - Google Patents
The construction method for hanging of large-scale wind electricity equipment under Mountain Conditions Download PDFInfo
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- CN106812670B CN106812670B CN201710214619.6A CN201710214619A CN106812670B CN 106812670 B CN106812670 B CN 106812670B CN 201710214619 A CN201710214619 A CN 201710214619A CN 106812670 B CN106812670 B CN 106812670B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of construction method for hanging of large-scale wind electricity equipment under Mountain Conditions, it includes the following steps: tower barrel base engineering construction and examination；Professional etiquette of going forward side by side after tower, cabin and wind wheel and lifting when institute 650t crawler crane to be used, 80t crawler crane in wind power equipment is transported to scene draws arrangement；Wherein, 650t crawler crane is main loop wheel machine, loop wheel machine supplemented by 80t crawler crane；Crawler crane is assembled using two 180t truck cranes；Each section tower is successively lifted on the tower barrel base after step 1 is checked and accepted using two auxiliary loop wheel machines；Cabin is lifted into epimerite tower using crawler crane；The wheel hub in wind wheel is debugged on the ground；After blade is lifted blade by main loop wheel machine and the cooperation of auxiliary loop wheel machine, it is lifted on wheel hub one by one；Assembled wind wheel is lifted using main loop wheel machine and the collaboration of auxiliary loop wheel machine；Whether the screw-down torque for spot-check the connection bolt of each connecting portion is qualified, power distribution cabinet installation and debugging.
Description
Technical field
The invention belongs to wind power equipments to lift field, and in particular to the lifting side of large-scale wind electricity equipment under a kind of Mountain Conditions
Method.
Background technique
Currently, ecological environment is by serious deterioration, and non-renewable resources are also faced with asking for critical shortage
Topic.In this case, the exploitation of new energy is more and more widely paid close attention to and is developed, wherein for the benefit of wind energy resources
One of the new energy of China's most advantage is had become with exploitation.Wind Power Generation mode is scale and distribution during " 12th Five-Year Plan "
Development combines, and with the fast development of China's wind-power market, wind-resources exploitation in plains region hastens towards saturation day, and mountainous region wind power plant
It is developed like the mushrooms after rain.Along with being constantly progressive for wind power technology, the capacity and equipment of generating set are also gradually big
Type, the increase of blade, tower, generator, there is stronger sensitivities for road, the project amount of hoisting platform and project investment
Property, very big difficulty is brought to the unit transport and installation of mountainous region wind power plant.
Specifically, there is following difficulty: mountainous region wind power plant height above sea level topography in the wind-driven generator in side slope place hoisting large-size
Height rises and falls big；Mostly on the independent hilltop, group of planes branch is wide for blower position, increases the difficulty of lifting machine dismounting and walking；Lifting
Platform is massif drop base mostly or closes on massif, and lifting place is limited, makes the stacking, ground assembling and lifting of each component of blower more
Add difficulty；Fan engine room weight is greater than 90t, and hoisting height is greater than 80m, to the more demanding of equipment and weather in hoisting process；
Blade is longer, and the diameter of wind wheel reaches 100m, lifts extremely difficult.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are:
Mountainous region lifting place is limited, rises and falls big, meanwhile, the weight of cabin is big, hoisting height is big, and the diameter of wind wheel is longer,
Hoisting height is big, and lifting is extremely difficult, is difficult to be directed at corresponding connecting portion.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
The construction method for hanging of large-scale wind electricity equipment under a kind of Mountain Conditions, it includes the following steps:
S1: tower barrel base engineering construction and examination；
S2: by tower, cabin and the wind wheel in wind power equipment and institute's 650t crawler crane to be used when lifting,
80t crawler crane go forward side by side after transporting to scene professional etiquette draw arrangement；Wherein, 650t crawler crane is main loop wheel machine, and 80t is carried out
Loop wheel machine supplemented by belt lifter；
S3: crawler crane is assembled using two 180t truck cranes；
S4: each section tower is successively lifted on the tower barrel base after step 1 is checked and accepted using two auxiliary loop wheel machines；
S5: cabin is lifted into epimerite tower using crawler crane；Before lifting, cabin sealed bottom plate should be removed
With the transport support steel cylinder and rack of the connection bolt and cabin transport frock front of cabin transport frock middle and back support upper end
Connection bolt；
S6: the wheel hub in wind wheel is debugged on the ground；
S7: it after the blade in wind wheel is lifted blade by main loop wheel machine and the cooperation of auxiliary loop wheel machine, is lifted on wind wheel one by one；
S8: using assembled wind wheel in main loop wheel machine and auxiliary loop wheel machine collaboration lifting step 7；The specific lifting step of wind wheel
As follows: I, two blades for selecting wheel hub adjacent with the zero mark on wheel hub mounting bracket table top hang supporting point as master, separately
One blade is hung as auxiliary, and controls pitch variable bearings rotation by pitch control cabinet, keeps the vaned blade of institute upward, and in master
It hangs and blade lock is installed on the corresponding wheel hub web of blade, locking master hangs blade；II, suspender belt is covered in the main root area for hanging blade
It is linked on the suspension hook of main crane afterwards, then another suspender belt is covered and is linked on the suspension hook of auxiliary crane after the auxiliary tip region for hanging blade,
Meanwhile needing to be inserted in a blade traction casing respectively at the blade tip of three blades, and fix one on each blade traction casing
Root traction rope；After connection bolt between III, disassembly hub bracket and wheel hub, starts main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction
It is auxiliary to hang blade, and worker is allowed to catch hold of traction rope, the direction of wind wheel is guided, when wind wheel is in plumbness, is laid down on auxiliary loop wheel machine
Suspender belt, meanwhile, promote main loop wheel machine boom height, wind wheel made to rise to spindle flange disk height, then cooperate rope pull wind wheel
Position immediately ahead of to ring flange；IV, it is indicated according to the radio of tower top staff, by wind wheel close to spindle flange disk, then
The zero mark being aligned on wind wheel and spindle flange disk, after being aligned zero mark, by wind wheel on spindle flange disk, wind wheel
Mounting hole and spindle flange disk on mounting hole correspond, the bolt that will finally penetrate again all penetrate after and twist
Tightly；V, suspender belt is unclamped from suspension hook, and is moved away from blade；VI, high speed shaft brake is unclamped, extracts wind wheel locking pin, it is slow manually
Wind wheel is moved in slow-speed, and remaining bolt is smoothly penetrated after wheel hub and tightened；VII, high speed shaft rot is unclamped again, slowly rotate
Wind wheel removes rope and traction casing when having the blade of traction rope downward from blade；VIII, blade lock is backed out into tooth
Slot simultaneously unloads；
S9: whether the screw-down torque for spot-check the connection bolt of each connecting portion is qualified, power distribution cabinet installation and debugging.
The specific arrangement of wind power equipment and main loop wheel machine is as follows in step 2: each section tower and cabin are individually positioned in tower base
The upper and lower of plinth, main loop wheel machine are located at the side of tower barrel base, and wind wheel is placed below main loop wheel machine, and blade is placed on the right side of wind wheel
Side.Purpose is easy for lifting, it is possible to reduce secondary transhipment in field.
Above-mentioned tower and cabin lift condition: in 10 minutes, maximum mean wind speed is 10~12m/s；Wind wheel and blade are hung
Dress condition: in 10 minutes, maximum mean wind speed is 8~10m/s；If 1 hourly average temperature is lower than -20 DEG C, regardless of any reason
By, it is necessary to lifting operation is terminated immediately.Purpose is to ensure that construction safety, prevents safety accident occur because of weather influence.
Before lifting tower, reply tower barrel base is made further to check and accept confirmation, is mainly to ensure that foundation ring flange contact table
The flatness in face is 0~1mm no more than 2mm, the error amount of flange outer diameter；Gradient maximum is no more than 2mm；It checks simultaneously
Internal diameter, maximum no more than standard value, minimum is not less than standard value 3mm；The location error in each hole of flange is no more than 1mm；
Flange edge is introversion；For other sizes, depending on the general error marked on geometrical and toleranging view paper.Advantage is
Reduce adjustment time in installation process, it is ensured that installation accuracy improves work efficiency.
Steps are as follows for the specific lifting of tower: I, the lifting of bottom end tower, before lifting, in the method for the upper and lower ends of the section tower
Blue Pan Chu installs four equally distributed tower hoisting fixtures respectively, and a suspender belt is fixed on each tower hoisting fixture；
II, the suspender belt at tower both ends is hung on the suspension hook of corresponding auxiliary loop wheel machine；III, the auxiliary loop wheel machine in tower both ends is lifted simultaneously
Crane arm after tower is lifted away from ground 1m, lifts the crane arm of the auxiliary loop wheel machine in wherein one end, so that tower is oblique, until will
Tower, which is hung, to be risen in vertical state, and the suspender belt and tower hoisting fixture on the auxiliary crane hook of the other end are then removed；IV, movement are sling
The auxiliary loop wheel machine of tower is slowly put down after so that the bottom end of the section tower is directed at tower barrel base；V, fixed bottom end tower；On VI, repetition
Step is stated, remaining tower is gradually installed.One is to ensure that tower uniform force, second is that preventing tower scrape along the ground from deforming.
Steps are as follows for the specific lifting of cabin: four skylights on I, opening cabin, and four machines corresponding to skylight
One 35t shackle and a 40t suspender belt are installed respectively on body panel lifting lug；II, cabin front end is separately fixed at 2 strops
With tail portion, manually catch hold of until cabin installs；III, auxiliary loop wheel machine is reached to suitable Hoisting Position, cabin slinger is installed
Tool, and crane is made to be in just stress；IV, a liter cabin is slowly hung, after cabin is separated with cabin transport frock completely, so
Slowly cabin is hung afterwards and is raised to the place more little higher than tower top ring flange, slowly moves on to above tower, is drawn with pilot pin
Enter.Advantage is to maintain steadily, is reduced cabin and is shaken, improves hole location alignment rate.
The specific debugging step of wind wheel is as follows: I, 3 17t shackles of installation and 3 15t are hung on the wheel hub of wind wheel respectively
Band, wherein shackle distribution triangular in shape；Whether II, the blade bolt for checking that producer is installed have loosening, and random inspection screw hole
Between center away from whether qualified；III, turn off storage battery power supply main switch in pitch axis cabinet, pull out on blade driving motor
After jointing, blade driving motor and auxiliary generator are connected using manual operation case, and control leaf using manual operation case
Piece driving motor rotation, to the pitch variable bearings to connect therewith be rotated, so that the zero mark hole on pitch variable bearings ring flange
Between two holes for hoist；IV, after completing above-mentioned work, auxiliary generator is disconnected, and dismantles manual operation case and blade drive
Connector plug, is then inserted on blade driving motor by the connection of dynamic motor again.So that wind wheel is kept balance, adjusts to angle of spot hole
Degree.
Steps are as follows for the specific lifting of blade in step 7: I, setting blade hoisting point position, and binds and hang at suspension centre
Band binds upper cable rope in blade head and the tail；II, the suspender belt on one of blade is hung on the suspension hook of auxiliary loop wheel machine, is started auxiliary
Blade is slowly moved at pitch variable bearings ring flange by the boom of loop wheel machine, and the zero mark hole on alignment flange disk；III,
Operating pitch control cabinet by construction personnel makes the appropriate variable pitch of blade, is then corresponded in vane end faces and pitch variable bearings ring flange again
Mounting hole installation bolt, blade nut and washer；IV, before unclamping crane, a branch need to be set up below blade tail end
Then support unclamps again crane and rope；V, remaining two panels blade is lifted referring to step I- step IV, after the assembly is completed, moved
The support frame of disleaf piece tail end.Ensure that blade keeps balance, prevent blade from shaking, improves alignment rate.
Compared with prior art, the construction method for hanging of large-scale wind electricity equipment has such as under the Mountain Conditions that the present invention obtains
Lower advantage:
1, by carrying out reasonable Arrangement to construction site, hanging device can be effectively utilized, is shortened in wind-driven generator
The lifting path of each component, so as to shorten the lifting time.
2, tower, blade and wind wheel are lifted by using the mode that main loop wheel machine and auxiliary loop wheel machine combine, is not only able to
Meet the needs of lifting strength, moreover it is possible to the participation quantity of construction personnel is reduced, meanwhile, using main loop wheel machine and the collaboration lifting of auxiliary loop wheel machine
Blade can prevent blade from deflection occur during lifting, solve the problems, such as that it is not easy to be directed at installation site.
Detailed description of the invention
Fig. 1 is the layout drawing in embodiment in the construction method for hanging step 2 of wind power equipment；
Fig. 2 is the structural schematic diagram of pitch variable bearings ring flange in embodiment；
Fig. 3 is blade and boss bolt mounting structure schematic diagram in embodiment；
Fig. 4 is the schematic view of the mounting position of blade rain-proof ring and pod rain-proof ring in embodiment.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment:
The construction method for hanging of large-scale wind electricity equipment under Mountain Conditions provided in this embodiment, it includes the following steps:
S1: tower barrel base engineering construction and examination；
S2: by tower, cabin and the wind wheel in wind power equipment and institute's 650t crawler crane to be used when lifting,
80t crawler crane go forward side by side after transporting to scene professional etiquette draw arrangement (as shown in Figure 1)；Wherein, 650t crawler crane is
Main loop wheel machine, loop wheel machine supplemented by 80t crawler crane；
S3: crawler crane is assembled using two 180t truck cranes；When tower barrel base concrete strength is met the requirements (extremely
Few 28 days) and performance it is qualified after can just carry out the installation of crawler crane；The crawler crane (i.e. main loop wheel machine)
Steps are as follows for specific lifting: I, preparation of construction: a, being planned according to mountainous region place map in conjunction with host seat in the plane platform present position
Suitable truck crane hoisting platform out；B, according to the length of crane arm and weight, two 180t truck cranes are selected；C, by crane
Host, crawler belt, counterweight and principal arm transport and assembled at the platform of host seat in the plane；D, two truck cranes are reached accordingly respectively
Hoisting platform on, and tower arm is transported on the lowermost hoisting platform；E, according to lower end hoisting platform to principal arm epimerite arm
Between vertical range, calculate separately out the length that each truck crane boom needs to stretch out, meanwhile, by the hoisting platform of lower end
Tower arm is assembled, and according to the position of centre of gravity for respectively saving boom in tower arm, determines suspension centre of each truck crane in tower arm, one of them
The hoisting point position of truck crane is in principal arm and principal arm epimerite junction, and the hoisting point position of another truck crane is in tower arm and tower arm epimerite
Arm junction；II, tower arm is sling simultaneously using two truck cranes: the boom of two truck cranes is reached into proper height respectively,
And the suspender of each truck crane is bundled at the suspension centre of tower arm, while a cable rope on the equal bolt in the left and right ends of tower arm；
Then, start truck crane boom, make the slow raising of boom, tower arm is risen in the air；During hanging liter tower arm, live people need to be passed through
Member tenses cable rope, adjusts the skyborne direction of tower arm at any time；III, tower arm and principal arm are carried out in the air using two truck cranes
It forms a team: the position by constantly turning round two truck crane booms, by the end face of tower arm and principal arm epimerite arm end face group pair, then
Principal arm pulling plate is connected by pin；IV, operation truck crane boom, change its upper and lower position, so that truck crane lifting rope loosens naturally,
To remove suspension hook.
S4: each section tower is successively lifted on the tower barrel base after step 1 is checked and accepted using two auxiliary loop wheel machines；It is hanging
Before filling tower, reply tower barrel base is made further to check and accept confirmation, is mainly to ensure that the flatness on foundation ring flange contact surface not
It can exceed that 2mm, the error amount of flange outer diameter are 0~1mm；Gradient maximum is no more than 2mm；Check that internal diameter maximum cannot simultaneously
Be above standard value, and minimum is not less than standard value 3mm；The location error in each hole of flange is no more than 1mm；Flange edge is introversion
's；For other sizes, depending on the general error marked on geometrical and toleranging view paper.
Steps are as follows for the specific lifting of tower: I, the lifting of bottom end tower, before lifting, in the method for the upper and lower ends of the section tower
Blue Pan Chu installs four equally distributed tower hoisting fixtures respectively, and (Hoisting Position of the tower hoisting fixture is located at method
0 °, 90 °, 180 ° and 270 ° position of blue disk), and a suspender belt is fixed on each tower hoisting fixture；II, by tower both ends
Suspender belt be hung on the suspension hook of corresponding auxiliary loop wheel machine；III, the crane arm for lifting the auxiliary loop wheel machine in tower both ends simultaneously, by tower
After being lifted away from ground 1m, the crane arm of the auxiliary loop wheel machine in wherein one end is lifted, so that tower is oblique, until it is perpendicular that tower is hung liter
Then state removes suspender belt and tower hoisting fixture on the auxiliary crane hook of the other end；IV, the mobile auxiliary loop wheel machine for slinging tower,
It is slowly put down after so that the bottom end of the section tower is directed at tower barrel base；V, fixed bottom end tower；VI, it repeats the above steps, gradually pacifies
Fill remaining tower.
S5: cabin is lifted into epimerite tower using crawler crane；Before lifting cabin, cabin bottom need to be removed
The transport support steel cylinder of sealing plate and the connection bolt and cabin transport frock front of cabin transport frock middle and back support upper end
With the connection bolt of rack；Steps are as follows for the specific lifting of cabin: I, opening four skylights in cabin, and corresponding to the skylight
Four framework platform lifting lugs on a 35t shackle and a 40t suspender belt are installed respectively；II, it is separately fixed at 2 strops
Cabin front end and tail portion are manually caught hold of until cabin installs；III, auxiliary loop wheel machine is reached into suitable Hoisting Position, fitting machine
Cabin lifting device, and loop wheel machine is made to be in just stress；IV, slowly hang a liter cabin, when cabin completely with cabin transport frock
After separation, then slowly cabin is hung and is raised to the place more little higher than tower top ring flange, slowly moved on to above tower, used
Pilot pin introduces.
S6: the wheel hub in wind wheel is debugged on the ground；The specific debugging step of wind wheel is as follows: I, respectively in the wheel hub of impeller
3 17t shackles of upper installation and 3 15t suspender belts, wherein shackle distribution triangular in shape；II, the blade bolt that producer is installed is checked
Whether loosening is had, and whether the center between random inspection screw hole is away from qualified；III, turn off storage battery power supply master in pitch axis cabinet
After switching, pulling out jointing on blade driving motor, blade driving motor and auxiliary power generation are connected using manual operation case
Machine, and rotated using manual operation case control blade driving motor, to the pitch variable bearings to connect therewith be rotated, so that variable pitch
Zero mark hole on bearing flange disk is between two holes for hoist；IV, after completing above-mentioned work, auxiliary generator is disconnected,
And the connection of manual operation case and blade driving motor is dismantled, then connector plug is inserted on blade driving motor again.
S7: it after the blade in wind wheel is lifted blade by main loop wheel machine and the cooperation of auxiliary loop wheel machine, is lifted on wind wheel one by one；
Steps are as follows for the specific lifting lifting of blade: I, (suspender belt is located at root of blade to setting blade hoisting point position, and another is located at
At blade root 2/3), and suspender belt has been bound at suspension centre, then, add protection board to protect in the suspender belt position that is in contact with blade blade part
Shield binds upper cable rope in blade head and the tail；II, the suspender belt on one of blade is hung on the suspension hook of auxiliary loop wheel machine, starting two
Blade is slowly moved at pitch variable bearings ring flange by the boom of the auxiliary loop wheel machine of platform, and the zero mark hole on alignment flange disk
(as shown in Figure 2)；III, by construction personnel operate pitch control cabinet make the appropriate variable pitch of blade, then correspond to again vane end faces with
Mounting hole installation bolt, blade nut and washer on pitch variable bearings ring flange, upon installation, need to check blade rain-proof ring with
Rain-proof ring presence of interference on pod, and to should be greater than 10mm(as shown in Figure 3, Figure 4 in edge gap)；IV, crane is being unclamped
Before, a support frame need to be set up below blade tail end, then unclamp again crane and rope；V, it is hung referring to step I- step IV
Remaining two panels blade is filled, after the assembly is completed, removes the support frame of blade tail end.
S8: using assembled wind wheel in main loop wheel machine and auxiliary loop wheel machine collaboration lifting step 7；The specific lifting step of wind wheel
As follows: I, two blades for selecting wheel hub adjacent with the zero mark on wheel hub mounting bracket table top hang supporting point as master, separately
One blade is hung as auxiliary, and controls pitch variable bearings rotation by pitch control cabinet, keeps the vaned blade of institute upward, and in master
It hangs and blade lock is installed on the corresponding wheel hub web of blade, locking master hangs blade；II, suspender belt is covered in the main root area for hanging blade
It is linked on the suspension hook of main loop wheel machine afterwards, then another suspender belt is covered and is linked on the suspension hook of auxiliary loop wheel machine after the auxiliary tip region for hanging blade,
Meanwhile needing to be inserted in a blade traction casing respectively at the blade tip of three blades, and fix one on each blade traction casing
Root traction rope；After connection bolt between III, disassembly hub bracket and wheel hub, starts main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction
It is auxiliary to hang blade, and worker is allowed to catch hold of traction rope, the direction of wind wheel is guided, when wind wheel is in plumbness, is laid down on auxiliary loop wheel machine
Suspender belt, meanwhile, promote main loop wheel machine boom height, wind wheel made to rise to spindle flange disk height, then cooperate rope pull wind wheel
Position immediately ahead of to ring flange；IV, it is indicated according to the radio of tower top staff, by wind wheel close to spindle flange disk, then
The zero mark being aligned on wind wheel and spindle flange disk, after being aligned zero mark, by wind wheel on spindle flange disk, wheel hub
Mounting hole and spindle flange disk on mounting hole correspond, the bolt that will finally penetrate again all penetrate after and twist
Tightly；V, suspender belt is unclamped from suspension hook, and is moved away from blade；VI, high speed shaft brake is unclamped, extracts wind wheel locking pin, it is slow manually
Wind wheel is moved in slow-speed, and remaining bolt is smoothly penetrated after wheel hub and tightened, it is desirable that whole bolts can be passed freely through and be tightened, and electricity consumption
Wrench intersects as far as possible gives tools for bolts ' pretension 1000N.m, then (high speed shaft is braked, locking wind wheel locking in two times with hydraulic spanner
100%) pin, first time 50% beat to rated moment for the second time, pay attention to marking on the bolt for be applied with torque；VII, again
Secondary release high speed shaft rot, slowly rotates wind wheel, when the blade with traction rope downward when, by rope and traction casing from blade
On remove；VIII, blade lock is backed out into tooth socket and is unloaded.
S9: whether the screw-down torque for spot-check the connection bolt of each connecting portion is qualified, power distribution cabinet installation and debugging.It checks
When, it checks that blade connect Bolt Tightening Force square with wheel hub, checks quantity 20~30%；Check that wheel hub connect bolt with main shaft and tightens
Torque checks quantity 20~30%；It checks that cabin connect Bolt Tightening Force square with tower, checks quantity 20~30%；It checks every
It saves tower and connects Bolt Tightening Force square, check quantity 20~30%；Other connection Bolt Tightening Force squares, inspection quantity 10~
15%.
In above-mentioned installation process, after being installed to tower, ground connection lightning protection line need to be installed at coxopodite tower
Cable and the installation protection wirerope in each section tower.Fixed wirerope, the lantern ring of wirerope and lockset shackle are installed on ladder
It is connect respectively with the wire rope ear on tower top and bottom end, by adjusting the tensioning journey that lockset shackle is adjustable wirerope
Degree, wire rope ear should be welded on the centre of ladder.
In cabin lifting, using when the hoisting height of main loop wheel machine and enough place spaces and just hang --- crawler crane is hung
Arm and main shaft are in the same plane；Hung when the hoisting height of main loop wheel machine and place space slightly less than normal using side --- crawler crane
In the side of cabin, boom and main shaft spatial vertical or there is angle.
During leaf blade hanging, in the case where wind speed is very big (10 minutes m/s of average value Vmax > 10), variable pitch is answered
Wind is reduced to the resistance of blade, is not turned by wind with protecting wind wheel.To the spiral shell in vane end faces and pitch variable bearings ring flange
When bolt, blade nut and washer are installed, it is desirable that tighten by hand, then give whole nuts to hand over electric wrench and socket wrench specially adapted for it
Fork is pre-tightened to 800~1000N.m, then is beaten to whole M36 nut intersection to rated moment with stud screwing tool, and torque is made
Process must be rotated by pitch control cabinet variable pitch to realize, making torque can also carry out after the completion of blade assembling.Simultaneously whole
Blade must be sling with a truck crane auxiliary in a installation process, guarantee that vane end faces are attached to the flange face of pitch variable bearings completely
On.After each blade is fixed, it is suitable in blade tip that need to one piece of light foam block pad be set on the support frame of blade tail end
Position is adjusted, and purpose is to prevent pitch-controlled system from toppling because of force unbalance.Suspender belt in the present embodiment, which is that eyes are flat, to be hung
Band, width are greater than 120mm, specification 10t/15m.
In the hoisting process of wind wheel, when tightening bolt, under cryogenic (when average daily temperature is less than -5 degrees Celsius), apply
The torque added should not be more than the 80% of bolt nominal torque value, add torque again when average daily temperature is not less than -5 degrees Celsius.
The main following points of installation measure in the present embodiment: (1), construction site press company's markization site layout project, it is right
Major hazard source is recognized, and warning mark is arranged.Night work should have sufficient light, and six grades of wind-force or more should stop all rooms
Outer lifting operation.(2), when equipment component lifts, segmental hoisting, selects suitable hoisting wirerope, suspender belt, ties up by number
Must be solid and reliable when bundle, it prevents from falling off and hurt sb.'s feelings.(3), it is commanded when lifting by the signalman to take appointment with certificate, strict implement " ten do not hang "
System.(4), into the proper use of Triratna in construction site, construction site is equipped with good, enough fire distinguishers.(5), eminence is made
When industry, it is erected with interim protection frame body, frame body answers secured, closing, prevents high falling.High altitude operation personnel must fasten peace
Full band, safety belt hanging point is securely, reliably.
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, although applicant describes the invention in detail referring to preferred embodiment, those skilled in the art should be managed
Solution, modification or equivalent replacement of the technical solution of the present invention are made for those, without departing from the objective and range of the technical program,
It is intended to be within the scope of the claims of the invention.
Claims (8)
1. the construction method for hanging of large-scale wind electricity equipment under a kind of Mountain Conditions, which is characterized in that it includes the following steps:
S1: tower barrel base engineering construction and examination；
S2: by tower, cabin and wind wheel and lifting when institute 650t crawler crane to be used, the 80t in wind power equipment
Crawler crane go forward side by side after transporting to scene professional etiquette draw arrangement；Wherein, 650t crawler crane is main loop wheel machine, 80t crawler belt
Loop wheel machine supplemented by formula crane；
S3: crawler crane is assembled using two 180t truck cranes；
S4: each section tower is successively lifted on the tower barrel base after S1 is checked and accepted using two auxiliary loop wheel machines；
S5: cabin is lifted into epimerite tower using crawler crane；Before lifting, cabin sealed bottom plate and machine should be removed
Cabin transport frock middle and back supports the company of the connection bolt of upper end and the transport support steel cylinder of cabin transport frock front and rack
Connecting bolt；
S6: the wheel hub in wind wheel is debugged on the ground；
S7: it after the blade in wind wheel is lifted blade by main loop wheel machine and the cooperation of auxiliary loop wheel machine, is lifted on wind wheel one by one；
S8: using assembled wind wheel in main loop wheel machine and auxiliary loop wheel machine collaboration lifting S7；Steps are as follows for the specific lifting of wind wheel: I,
Two blades for selecting wheel hub adjacent with the zero mark on wheel hub mounting bracket table top hang supporting point as master, another leaf
Piece is hung as auxiliary, and controls pitch variable bearings rotation by pitch control cabinet, keeps the vaned blade of institute upward, and hang blade in master
Blade lock is installed, locking master hangs blade on corresponding wheel hub web；II, it suspender belt is covered is linked into after the main root area for hanging blade
On the suspension hook of main loop wheel machine, then another suspender belt is covered and is linked on the suspension hook of auxiliary loop wheel machine after the auxiliary tip region for hanging blade, meanwhile, it needs
It to be inserted in a blade traction casing respectively at the blade tip of three blades, and fix a traction on each blade traction casing
Rope；After connection bolt between III, disassembly hub bracket and wheel hub, starts main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction is auxiliary to hang leaf
Piece, and worker is allowed to catch hold of traction rope, the direction of wind wheel is guided, when wind wheel is in plumbness, lays down the suspender belt on auxiliary loop wheel machine,
Meanwhile main loop wheel machine boom height is promoted, so that wind wheel is risen to spindle flange disk height, then rope is cooperated to pull wind wheel to ring flange
Front position；IV, it is indicated according to the radio of tower top staff, by wind wheel close to spindle flange disk, is then aligned with wind wheel
With the zero mark on spindle flange disk, after being aligned zero mark, by mounting hole of the wind wheel on spindle flange disk, wheel hub
It corresponds with the mounting hole on spindle flange disk, after the bolt that will finally penetrate again all penetrates and tightens；V, it will hang
Band is unclamped from suspension hook, and is moved away from blade；VI, high speed shaft brake is unclamped, extracts wind wheel locking pin, slowly rotates wind manually
Wheel is smoothly penetrated remaining after wheel hub and is tightened；VII, high speed shaft rot is unclamped again, slowly rotate wind wheel, when having
The blade of traction rope downward when, rope and traction casing are removed from blade；VIII, blade lock is backed out into tooth socket and is unloaded；
S9: whether the screw-down torque for spot-check the connection bolt of each connecting portion is qualified, power distribution cabinet installation and debugging.
2. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1, which is characterized in that in S2
The specific layout of wind power equipment and main loop wheel machine is as follows: respectively section tower and cabin are individually positioned in the upper and lower of tower barrel base, and master hangs
Machine is located at the side of tower barrel base, and wind wheel is placed below main loop wheel machine, and blade is placed on the right of wind wheel.
3. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1, which is characterized in that tower
Lift condition with cabin: in 10 minutes, maximum mean wind speed is 10~12m/s；Wind wheel and leaf blade hanging condition: in 10 minutes,
Maximum mean wind speed is 8~10m/s；If 1 hourly average temperature is lower than -20 DEG C, regardless of any reason, it is necessary to terminate hang immediately
Pretend industry.
4. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1 or 3, which is characterized in that
Before lifting tower, reply tower barrel base is made further to check and accept confirmation, is mainly to ensure that the plane on foundation ring flange contact surface
Degree is 0~1mm no more than 2mm, the error amount of flange outer diameter；Gradient maximum is no more than 2mm；Check internal diameter simultaneously, most
Big no more than standard value, minimum are not less than standard value 3mm；The location error in each hole of flange is no more than 1mm；Flange edge
It is introversion；For other sizes, depending on the general error marked on geometrical and toleranging view paper.
5. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 4, which is characterized in that tower
It is specific lifting steps are as follows: I, bottom end tower lifting, before lifting, pacify respectively at the ring flange of the upper and lower ends of the section tower
Four equally distributed tower hoisting fixtures are filled, and fix a suspender belt on each tower hoisting fixture；II, by tower both ends
Suspender belt be hung on the hook of corresponding auxiliary crane；III, the crane arm for lifting the auxiliary loop wheel machine in tower both ends simultaneously, by tower
After being lifted away from one meter of ground, the crane arm of the auxiliary loop wheel machine in wherein one end is lifted, so that tower is oblique, is risen until tower is hung in vertical
Then straight state removes suspender belt and tower hoisting fixture on the auxiliary loop wheel machine hook of the other end；IV, movement are sling the auxiliary of tower and are hung
Machine is slowly put down after so that the bottom end of the section tower is directed at tower barrel base；V, fixed bottom end tower；VI, it repeats the above steps, gradually
Remaining tower is installed.
6. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1 or 3, which is characterized in that
Steps are as follows for the specific lifting of cabin: four skylights on I, opening cabin, and four framework platforms corresponding to skylight are hung
One 35t shackle and a 40t suspender belt are installed respectively on ear；II, it is separately fixed at cabin front end and tail portion with 2 strops,
It manually catches hold of until cabin installs；III, auxiliary loop wheel machine is reached to suitable Hoisting Position, cabin lifting device is installed, and make
Loop wheel machine is in just stress；IV, a liter cabin is slowly hung, after cabin is separated with cabin transport frock completely, then slowly
Cabin is hung and is raised to the place higher than tower top ring flange, slowly moves on to above tower, is introduced with pilot pin.
7. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1 or 3, which is characterized in that
The specific debugging step of wind wheel is as follows: I, 3 17t shackles and 3 15t suspender belts is installed on the wheel hub of wind wheel respectively, wherein unloading
Detain distribution triangular in shape；Whether II, the blade bolt for checking that producer is installed have loosening, and the center between random inspection screw hole
Away from whether qualified；III, after turning off storage battery power supply main switch in pitch axis cabinet, pulling out jointing on blade driving motor,
Blade driving motor and auxiliary generator are connected using manual operation case, and turned using manual operation case control blade driving motor
It is dynamic, to the pitch variable bearings to connect therewith be rotated, so that the zero mark hole on pitch variable bearings ring flange is in two liftings
Between hole；IV, after completing above-mentioned work, auxiliary generator is disconnected, and dismantles the connection of manual operation case and blade driving motor,
Then connector plug is inserted on blade driving motor again.
8. the construction method for hanging of large-scale wind electricity equipment under Mountain Conditions according to claim 1, which is characterized in that in S7
Steps are as follows for the specific lifting of blade: a, setting blade hoisting point position, and suspender belt has been bound at suspension centre, ties up in blade head and the tail
Cable rope on bundle；B, on the suspension hook that the suspender belt on one of blade is hung over to auxiliary loop wheel machine, start the boom of auxiliary loop wheel machine, by blade
It is slowly moved at pitch variable bearings ring flange, and the zero mark hole on alignment flange disk；C, it is operated and is become by construction personnel
Paddle control cabinet makes the appropriate variable pitch of blade, then correspond to again in vane end faces and pitch variable bearings ring flange mounting hole installation bolt,
Blade nut and washer；D, before unclamping crane, a support frame need to be set up below blade tail end, has then been unclamped again
Heavy-duty machine and rope；E, remaining two panels blade is lifted referring to step a- step d, after the assembly is completed, removes the support frame of blade tail end.
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| CN107676229A (en) * | 2017-10-18 | 2018-02-09 | 南京中人能源科技有限公司 | A kind of wind power generating set impeller formal dress method |
| CN110668331A (en) * | 2019-10-12 | 2020-01-10 | 中国电建集团贵州工程有限公司 | Crawler suspension arm and rod combined mode |
| CN113864124B (en) * | 2021-09-29 | 2023-06-13 | 华能江西清洁能源有限责任公司 | Wind power blade hoisting construction method under mountain condition |
| CN114873497B (en) * | 2022-05-24 | 2023-06-16 | 中国长江三峡集团有限公司 | Vertical lifting installation device and method for variable-diameter unbalanced load equipment |
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| CN101375011A (en) * | 2006-02-20 | 2009-02-25 | 维斯塔斯风力系统有限公司 | Wind turbine tower, wind turbine and method for assembling wind turbine tower |
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