CN106812670A - 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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- CN106812670A CN106812670A CN201710214619.6A CN201710214619A CN106812670A CN 106812670 A CN106812670 A CN 106812670A CN 201710214619 A CN201710214619 A CN 201710214619A CN 106812670 A CN106812670 A CN 106812670A
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- loop wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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 comprises the following steps：Tower barrel base engineering construction and examination；Professional etiquette of being gone forward side by side after 650t crawler cranes, the 80t crawler cranes transport to scene to be used during by the tower in wind power equipment, cabin and wind wheel and lifting draws arrangement；Wherein, 650t crawler cranes are main loop wheel machine, loop wheel machine supplemented by 80t crawler cranes；Crawler crane is assembled using two 180t truck cranes；Each section tower is lifted on the tower barrel base after step one is checked and accepted successively 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；Blade is coordinated by main loop wheel machine and auxiliary loop wheel machine after blade is lifted, be lifted on wheel hub one by one；The wind wheel assembled using main loop wheel machine and the collaboration lifting of auxiliary loop wheel machine；Whether the screw-down torque for spot-check the connecting bolt of each connecting portion is qualified, and power distribution cabinet is installed and debugged.
Description
Technical field
The invention belongs to wind power equipment lifting field, and in particular to the lifting side of large-scale wind electricity equipment under a kind of Mountain Conditions
Method.
Background technology
At present, ecological environment suffered it is serious deteriorate, 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 profit of wind energy resources
One of new energy of China's most advantage is turned into exploitation.Wind Power Generation pattern is scale and distribution during " 12 "
Development is combined, and as China's wind-power market is fast-developing, wind-resources exploitation in plains region hastens towards saturation day, and mountain region wind power plant
It is developed like the mushrooms after rain.Along with the continuous progress of wind power technology, the capacity and equipment of generating set are also gradually big
Type, blade, tower, the increase of generator, road, the quantities of hoisting platform and project investment have stronger sensitivity
Property, unit transport and installation to mountain region wind power plant bring very big difficulty.
Specifically, there is following difficulty in the wind-driven generator in side slope place hoisting large-size：Mountain region wind power plant height above sea level physical features
Height, rises and falls big；Blower fan position is mostly on the independent hilltop, and group of planes branch is wide, increases the difficulty of lifting machine dismounting and walking；Lifting
Platform is mostly massif drop base or closes on massif, and lifting place is limited, makes stacking, ground assembling and the lifting of each part of blower fan more
Plus it is difficult；Fan engine room weight is more than 90t, and hoisting height is more than 80m, and the requirement in hoisting process to equipment and weather is higher；
Blade is more long, diameter of up to 100m of wind wheel, lifts extremely difficult.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：
Mountain 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 more long, lifting
Height is big, and lifting is extremely difficult, it is difficult to be directed at corresponding connecting portion.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
The construction method for hanging of large-scale wind electricity equipment under a kind of Mountain Conditions, it comprises the following steps：
S1：Tower barrel base engineering construction and examination；
S2：650t crawler cranes, the 80t to be used during by the tower in wind power equipment, cabin and wind wheel and lifting
Crawler crane transports to after scene professional etiquette of going forward side by side and draws arrangement；Wherein, 650t crawler cranes are main loop wheel machine, 80t crawler belts
Loop wheel machine supplemented by formula crane；
S3：Crawler crane is assembled using two 180t truck cranes；
S4：Each section tower is lifted on the tower barrel base after step one is checked and accepted successively 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 pulled down
The connecting bolt and the anterior transport support steel cylinder of cabin transport frock of cabin transport frock postmedian support upper end and the company of frame
Connecting bolt；
S6：The wheel hub in wind wheel is debugged on the ground；
S7：Blade in wind wheel is coordinated by main loop wheel machine and auxiliary loop wheel machine after blade is lifted, be lifted on wind wheel one by one；
S8：Using the wind wheel assembled in main loop wheel machine and auxiliary loop wheel machine collaboration lifting step 7；The specific lifting step of wind wheel is as follows：
I, selection wheel hub two blades adjacent with the zero mark on wheel hub mounting bracket table top hang the strong point as master, another leaf
Piece hangs as auxiliary, and controls pitch variable bearings to rotate by pitch control cabinet, makes the vaned blade of institute upwards, and hang blade in master
Blade lock is installed, locking master hangs blade on corresponding wheel hub web；II, suspender belt is enclosed within after master hangs the root area of blade and is linked into
It is linked on the suspension hook of auxiliary crane on the suspension hook of main crane, then after another suspender belt is enclosed within into the auxiliary tip region for hanging blade, meanwhile, need
To be inserted in a blade traction casing respectively at three blade tips of blade, and a traction is fixed on each blade traction casing
Rope；After connecting bolt between III, dismounting hub bracket and wheel hub, start main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction is auxiliary to hang leaf
Piece, and allow workman to catch hold of pull rope, the direction of wind wheel is guided, when wind wheel is in plumbness, the suspender belt on auxiliary loop wheel machine is laid down,
Meanwhile, lift main loop wheel machine arm highly, wind wheel is risen to spindle flange disk highly, then coordinate rope to pull wind wheel to ring flange
Front position；IV, indicated according to the radio of tower top staff, by wind wheel near spindle flange disk, be then aligned with wind wheel
With the zero mark on spindle flange disk, after the zero mark that aligns, wind wheel is close to spindle flange disk, the mounting hole on wind wheel
Corresponded with the mounting hole on spindle flange disk, the bolt for being finally possible to penetrate again is all penetrated rear and tightened；V, will hang
Band unclamps from suspension hook, and is moved away from blade；VI, release high speed shaft brake, extract wind wheel locking pin, slow manually to rotate wind
Wheel, remaining bolt is smoothly penetrated after wheel hub and tightened；VII, again release high speed shaft rot, slowly rotate wind wheel, when
Blade with pull rope down when, rope and traction casing are removed from blade；VIII, blade lock is backed out teeth groove and is unloaded
Under；
S9：Whether the screw-down torque for spot-check the connecting bolt of each connecting portion is qualified, and power distribution cabinet is installed and debugged.
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 is located at the side of tower barrel base, and wind wheel is placed on main loop wheel machine lower section, 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 lifting condition：In 10 minutes, maximum mean wind speed is 10~12m/s；Wind wheel and blade hang
Dress condition：In 10 minutes, maximum mean wind speed is 8~10m/s；If 1 hourly average temperature is less than -20 DEG C, no matter any reason
By, it is necessary to terminate lifting operation immediately.Purpose is to ensure that construction safety, prevents security incident occur because of weather influence.
Before tower is lifted, reply tower barrel base is made further examination and is confirmed, is mainly to ensure that foundation ring flange contact table
No more than 2mm, the error amount of flange outer diameter is 0~1mm to the flatness in face；Gradient is maximum no more than 2mm；Check simultaneously
Internal diameter, maximum no more than standard value, minimum is not less than standard value 3mm；The site 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, improve work efficiency.
The specific lifting step of tower is as follows：I, the lifting of bottom tower, before lifting, in the method for the upper and lower ends of the section tower
Blue Pan Chu is respectively mounted four equally distributed tower hoisting fixtures, and a suspender belt is fixed on each tower hoisting fixture；
II, the suspender belt at tower two ends is hung on the suspension hook of corresponding auxiliary loop wheel machine；III, while lifting the auxiliary loop wheel machine in tower two ends
Crane arm, after tower is lifted away from into ground 1m, lifts the crane arm of the auxiliary loop wheel machine in wherein one end so that tower is oblique, until will
Tower is hung and is risen in vertical state, then removes the suspender belt and tower hoisting fixture on the auxiliary crane hook of the other end；IV, movement are sling
The auxiliary loop wheel machine of tower, makes the bottom of the section tower slowly be put down after being directed at tower barrel base；V, fixed bottom tower；On VI, repetition
Step is stated, remaining tower is gradually installed.One is to ensure that tower uniform force, and two is to prevent tower scrape along the ground from deforming.
The specific lifting step of cabin is as follows：I, four skylights opened in cabin, and in four machines corresponding to skylight
A 35t shackle and a 40t suspender belt are respectively mounted on body panel hanger；II, it is separately fixed at cabin front end with 2 strops
With afterbody, manually catch hold of until cabin is installed；III, auxiliary loop wheel machine is reached suitable Hoisting Position, cabin slinger is installed
Tool, and crane is 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 is raised to the place more little higher than atop a tower ring flange, slowly move on to tower top, drawn with pilot pin
Enter.Advantage is to maintain steadily, reduces cabin and rocks, and improves hole position alignment rate.
The specific debugging step of wind wheel is as follows：I, 3 17t shackles and 3 15t are installed on the wheel hub of wind wheel respectively hang
The distribution triangular in shape of band, wherein shackle；Whether the blade bolt that II, inspection producer are installed has loosening, and inspects screw by random samples at random
Between centre-to-centre spacing it is 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 manually operated case, and leaf is controlled using manually operated case
Piece motor is rotated, so as to the pitch variable bearings for connecting therewith be rotated so that the zero mark hole on pitch variable bearings ring flange
Between two holes for hoist；After IV, the above-mentioned work of completion, auxiliary generator is disconnected, and dismantles manually operated case and driven with blade
The connection of dynamic motor, then again inserts on blade driving motor connector plug.Wind wheel is kept balance, adjust to angle of spot hole
Degree.
The specific lifting step of step 7 Leaf is as follows：I, setting blade hoisting point position, and colligation is hung well at suspension centre
Band, the cable rope in blade head and the tail colligation；II, the suspender belt on one of blade is hung on the suspension hook of auxiliary loop wheel machine, started auxiliary
The arm of loop wheel machine, blade is lentamente moved at pitch variable bearings ring flange, and the zero mark hole on alignment flange disk；III、
Blade is suitably become oar by workmen's operation pitch control cabinet, then correspond in vane end faces and pitch variable bearings ring flange again
Mounting hole installation bolt, blade nut and packing ring；IV, unclamp crane before, a branch need to be set up below blade tail end
Support, then unclamps crane and rope again；V, remaining two panels blade is lifted with reference to step I- steps IV, after the completion of assembling, moved
The support frame of disleaf piece tail end.Ensure that blade keeps balance, prevent blade from rocking, improve 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 is obtained
Lower advantage：
1st, reasonable Arrangement is carried out by construction site, hanging device can be effectively utilized, shorten each portion in wind-driven generator
The lifting path of part, so as to shorten the lifting time.
2nd, tower, blade and wind wheel are lifted by way of being combined using main loop wheel machine and auxiliary loop wheel machine, is not only able to
Meet the demand of lifting strength, moreover it is possible to reduce the participation quantity of workmen, meanwhile, using main loop wheel machine and the collaboration lifting of auxiliary loop wheel machine
Blade, is prevented from blade and occurs deflection during lifting, solves it and is difficult to be directed at the problem of installation site.
Brief description of the drawings
Fig. 1 is the layout drawing in the construction method for hanging step 2 of wind power equipment in embodiment；
Fig. 2 is the structural representation of pitch variable bearings ring flange in embodiment；
Fig. 3 is embodiment Leaf and boss bolt mounting structure schematic diagram；
Fig. 4 is the schematic view of the mounting position of embodiment Leaf rain-proof ring and kuppe rain-proof ring.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment：
The construction method for hanging of large-scale wind electricity equipment under the Mountain Conditions that the present embodiment is provided, it comprises the following steps：
S1：Tower barrel base engineering construction and examination；
S2：650t crawler cranes, the 80t to be used during by the tower in wind power equipment, cabin and wind wheel and lifting
Crawler crane transports to after scene professional etiquette of going forward side by side and draws arrangement（As shown in Figure 1）；Wherein, hung based on 650t crawler cranes
Machine, loop wheel machine supplemented by 80t crawler cranes；
S3：Crawler crane is assembled using two 180t truck cranes；Required when tower barrel base concrete strength meets（At least 28
My god）And the installation of crawler crane can be just carried out after performance is qualified；The crawler crane（I.e. main loop wheel machine）It is specific
Lifting step is as follows：I, preparation of construction：A, according to mountain region place map, with reference to main frame seat in the plane platform present position, cook up conjunction
Suitable truck crane hoisting platform；B, length and weight according to crane arm, select two 180t truck cranes；C, the master by crane
Machine, crawler belt, counterweight and principal arm are transported at the platform of main frame seat in the plane and assembled；D, two truck cranes are reached respectively and is hung accordingly
On assembling platform, and by tower arm transport to the hoisting platform of bottom；E, according to lower end hoisting platform between principal arm epimerite arm
Vertical range, each truck crane arm is calculated respectively needs the length stretched out, meanwhile, assembled by the hoisting platform of lower end
Tower arm, and according to the position of centre of gravity of each section arm in tower arm, determine suspension centre of each truck crane in tower arm, one of automobile
The hoisting point position for hanging connects in principal arm and principal arm epimerite junction, another hoisting point position of truck crane in tower arm and tower arm epimerite arm
Meet place；II, tower arm of being sling simultaneously using two truck cranes：The arm of two truck cranes is reached into proper height respectively, and will
The suspender of each truck crane is bundled at the suspension centre of tower arm, while a cable rope on the equal bolt in left and right two ends of tower arm；Then,
Start truck crane arm, make the slow raising of arm, tower arm is risen in the air；Hang during liter tower arm, need to be drawn by Field Force
Tight cable rope, adjusts the skyborne direction of tower arm at any time；III, tower arm and principal arm are formed a team in the air using two truck cranes：
By constantly turning round two positions of truck crane arm, then the end face of tower arm and principal arm epimerite arm end face group pair pass through
Pin connects principal arm arm-tie；IV, operation truck crane arm, change its upper-lower position so that truck crane lifting rope loosens naturally, so that
Remove suspension hook.
S4：Each section tower is lifted on the tower barrel base after step one is checked and accepted successively using two auxiliary loop wheel machines；Hanging
Before dress tower, reply tower barrel base is made further examination and is confirmed, is mainly to ensure that the flatness on foundation ring flange contact surface not
2mm is can exceed that, the error amount of flange outer diameter is 0~1mm；Gradient is maximum no more than 2mm；Check that internal diameter maximum can not simultaneously
Be above standard value, and minimum is not less than standard value 3mm；The site 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.
The specific lifting step of tower is as follows：I, the lifting of bottom tower, before lifting, in the method for the upper and lower ends of the section tower
Blue Pan Chu is respectively mounted four equally distributed tower hoisting fixtures（The Hoisting Position of the tower hoisting fixture is located at method respectively
0 °, 90 °, 180 ° and 270 ° position of blue disk）, and a suspender belt is fixed on each tower hoisting fixture；II, by tower two ends
Suspender belt be hung on the suspension hook of corresponding auxiliary loop wheel machine；III, while lift the crane arm of the auxiliary loop wheel machine in tower two ends, 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 tower is hung rising perpendicular
State, then removes the suspender belt and tower hoisting fixture on the auxiliary crane hook of the other end；The auxiliary loop wheel machine of IV, mobile tower of slinging,
The bottom of the section tower is set slowly to be put down after being directed at tower barrel base；V, fixed bottom tower；VI, repeat the above steps, gradually pacify
Fill remaining tower.
S5：Cabin is lifted into epimerite tower using crawler crane；Before cabin is lifted, cabin bottom need to be pulled down
Sealing plate and the connecting bolt and the anterior transport support steel cylinder of cabin transport frock of cabin transport frock postmedian support upper end
With the connecting bolt of frame；The specific lifting step of cabin is as follows：I, four skylights opened in cabin, and corresponding to skylight
Four framework platform hangers on be respectively mounted a 35t shackle and a 40t suspender belt；II, it is separately fixed at 2 strops
Cabin front end and afterbody, manually catch hold of until cabin is installed；III, auxiliary loop wheel machine is reached into suitable Hoisting Position, fitting machine
Cabin lifting device, and loop wheel machine is 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 atop a tower ring flange, slowly move on to tower top, used
Pilot pin is introduced.
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
It is upper that 3 17t shackles and 3 15t suspender belts, wherein shackle distribution triangular in shape are installed；The blade bolt that II, inspection producer are installed
Whether loosening is had, and whether the centre-to-centre spacing inspected by random samples between screw at random is qualified；III, turn off storage battery power supply master in pitch axis cabinet
After the jointing for switch, pulling out on blade driving motor, blade driving motor and auxiliary power generation are connected using manually operated case
Machine, and control blade driving motor to rotate using manually operated case, so as to the pitch variable bearings for connecting therewith be rotated so that become oar
Zero mark hole on bearing flange disk is between two holes for hoist；After IV, the above-mentioned work of completion, auxiliary generator is disconnected,
And the connection of manually operated case and blade driving motor is dismantled, connector plug is inserted on blade driving motor again then.
S7：Blade in wind wheel is coordinated by main loop wheel machine and auxiliary loop wheel machine after blade is lifted, be lifted on wind wheel one by one；
The specific lifting lifting step of blade is as follows：I, setting blade hoisting point position（One suspender belt is located at root of blade, and another is located at
At blade root 2/3）, then the and good suspender belt of colligation at suspension centre, be in contact position with blade blade part plus protection board protected in suspender belt
Shield, the cable rope in blade head and the tail colligation；II, the suspender belt on one of blade is hung on the suspension hook of auxiliary loop wheel machine, start two
The arm of the auxiliary loop wheel machine of platform, blade is lentamente moved at pitch variable bearings ring flange, and the zero mark hole on alignment flange disk
（As shown in Figure 2）；III, by workmen operate pitch control cabinet blade is suitably become oar, then again correspond to vane end faces and
Mounting hole installation bolt, blade nut and packing ring on pitch variable bearings ring flange, upon installation, need to check blade rain-proof ring with
Rain-proof ring presence of interference on kuppe, and edge gap should be greater than 10mm（As shown in Figure 3, Figure 4）；IV, unclamp crane
Before, a support frame need to be set up below blade tail end, crane and rope are then unclamped again；V, hung with reference to step I- steps IV
Remaining two panels blade is filled, after the completion of assembling, the support frame of blade tail end is removed.
S8：Using the wind wheel assembled in main loop wheel machine and auxiliary loop wheel machine collaboration lifting step 7；The specific lifting step of wind wheel
It is as follows：I, selection wheel hub two blades adjacent with the zero mark on wheel hub mounting bracket table top hang the strong point as master, separately
One blade hangs as auxiliary, and controls pitch variable bearings to rotate by pitch control cabinet, makes the vaned blade of institute upwards, and in master
Hang and blade lock is installed on the corresponding wheel hub web of blade, locking master hangs blade；II, suspender belt is enclosed within master hangs the root area of blade
It is linked into afterwards on the suspension hook of main loop wheel machine, then is linked on the suspension hook of auxiliary loop wheel machine after another suspender belt is enclosed within into the auxiliary tip region for hanging blade,
Simultaneously, it is necessary to be inserted in a blade traction casing respectively at three blade tips of blade, and one is fixed on each blade traction casing
Root pull rope；After connecting bolt between III, dismounting hub bracket and wheel hub, start main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction
It is auxiliary to hang blade, and allow workman to catch hold of pull rope, the direction of wind wheel is guided, when wind wheel is in plumbness, lay down on auxiliary loop wheel machine
Suspender belt, meanwhile, lift main loop wheel machine arm highly, wind wheel is risen to spindle flange disk highly, then coordinate rope to pull wind wheel
To ring flange front position；IV, indicated according to the radio of tower top staff, by wind wheel near spindle flange disk, then
Zero mark on alignment wind wheel and spindle flange disk, after the zero mark that aligns, by wind wheel near spindle flange disk, on wheel hub
Mounting hole and spindle flange disk on mounting hole correspond, after the bolt for being finally possible to penetrate again is all penetrated and twist
Tightly；V, suspender belt is unclamped from suspension hook, and be moved away from blade；VI, release high speed shaft brake, extract wind wheel locking pin, slow manually
Wind wheel is moved in slow-speed, remaining bolt is smoothly penetrated after wheel hub and tightened, it is desirable to which whole bolts can be passed freely through and tightened, and electricity consumption
Wrench intersects as far as possible gives tools for bolts ' pretension 1000N.m, then with hydraulic spanner at twice（High speed shaft is braked, locking wind wheel locking
Pin, first time 50%, second 100%）Beat to rated moment, note being marked on the bolt for be applied with moment of torsion；VII, again
Secondary release high speed shaft rot, slowly rotates wind wheel, when the blade with pull rope down when, by rope and traction casing from blade
On remove；VIII, blade lock is backed out teeth groove and is unloaded.
S9：Whether the screw-down torque for spot-check the connecting bolt of each connecting portion is qualified, and power distribution cabinet is installed and debugged.Check
When, blade and wheel hub connecting bolt screw-down torque are checked, check quantity 20~30%；Check that wheel hub is tightened with main shaft connecting bolt
Torque, checks quantity 20~30%；Cabin and tower connecting bolt screw-down torque are checked, quantity 20~30% is checked；Check every
Section tower connecting bolt screw-down torque, checks quantity 20~30%；Other connecting bolt screw-down torques, inspection quantity 10~
15%.
In above-mentioned installation process, after installation is carried out to tower, ground connection lightning protection line need to be installed at coxopodite tower
Cable simultaneously installs protection steel wire rope in each section tower.Fixed steel wire rope, the collar of steel wire rope and lockset shackle are installed on cat ladder
The wire rope ear with tower top and bottom is connected respectively, and the tensioning journey of steel wire rope is can adjust by adjusting lockset shackle
Degree, wire rope ear should be welded on the centre of ladder.
When cabin is lifted, when hoisting height and enough place spaces of main loop wheel machine using just hanging --- crawler crane hangs
Arm is with main shaft in the same plane；Hung using side when hoisting height and the place space slightly less than normal of main loop wheel machine --- crawler crane
In the side of cabin, arm and main shaft spatial vertical or there is angle.
During leaf blade hanging, in the case where wind speed is very big（10 minutes average value Vmax> 10 m/s）, strain oar
Resistance of the wind to blade is reduced, is not turned by wind with protecting wind wheel.Spiral shell on to vane end faces and pitch variable bearings ring flange
When bolt, blade nut and packing ring are installed, it is desirable to tighten by hand, then hand over to whole nuts with electric wrench and socket wrench specially adapted for it
Fork pretension is beaten to rated moment to 800~1000N.m, then with stud screwing tool to whole M36 nuts intersection, makees torque
Process must become oar rotation to realize by pitch control cabinet, and making torque can also be carried out after the completion of blade assembling.Simultaneously whole
Blade of slinging must be aided in individual installation process with a truck crane, it is ensured that vane end faces are attached to the flange face of pitch variable bearings completely
On.After each blade is fixed, need to one piece of light foam block pad be set on the support frame of blade tail end suitable in blade tip
Position is adjusted, and purpose is toppled to prevent pitch-controlled system because of force unbalance.Suspender belt in the present embodiment hangs for eyes are flat
Band, width is more 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
Plus moment of torsion should not exceed bolt nominal torque value 80%, 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）, job site press company's markization site layout project, it is right
Major hazard source is recognized, and sets warning mark.Night work should have sufficient light, and wind-force should stop all rooms for more than six grades
Outer lifting operation.（2）, equipment component lift when, segmental hoisting, from suitable hoisting wirerope, suspender belt, ties up by number
Must be solid and reliable during bundle, prevent from coming off and hurt sb.'s feelings.（3）, lifting when commanded by the signalman that takes appointment with certificate, strict implement " ten do not hang "
System.（4）, into the proper use of Triratna in job site, job site is equipped with good, enough fire distinguishers.（5）, eminence make
During industry, interim protection support body is erected with, support body is answered firm, closing, prevents high falling.Work high above the ground personnel must fasten peace
Full band, safety belt hanging point is firm, reliable.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than restriction technologies side
Case, although applicant has been described in detail with reference to preferred embodiment to the present invention, one of ordinary skill in the art should manage
Solution, those modify or equivalent to technical scheme, without deviating from the objective and scope of the technical program,
All should cover in the middle of scope of the presently claimed invention.
Claims (8)
1. under a kind of Mountain Conditions large-scale wind electricity equipment construction method for hanging, it is characterised in that it comprises the following steps：
S1：Tower barrel base engineering construction and examination；
S2：650t crawler cranes, the 80t to be used during by the tower in wind power equipment, cabin and wind wheel and lifting
Crawler crane transports to after scene professional etiquette of going forward side by side and draws arrangement；Wherein, 650t crawler cranes are main loop wheel machine, 80t crawler belts
Loop wheel machine supplemented by formula crane；
S3：Crawler crane is assembled using two 180t truck cranes；
S4：Each section tower is lifted on the tower barrel base after step one is checked and accepted successively 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 pulled down
The connecting bolt and the anterior transport support steel cylinder of cabin transport frock of cabin transport frock postmedian support upper end and the company of frame
Connecting bolt；
S6：The wheel hub in wind wheel is debugged on the ground；
S7：Blade in wind wheel is coordinated by main loop wheel machine and auxiliary loop wheel machine after blade is lifted, be lifted on wind wheel one by one；
S8：Using the wind wheel assembled in main loop wheel machine and auxiliary loop wheel machine collaboration lifting step 7；The specific lifting step of wind wheel is as follows：
I, selection wheel hub two blades adjacent with the zero mark on wheel hub mounting bracket table top hang the strong point as master, another leaf
Piece hangs as auxiliary, and controls pitch variable bearings to rotate by pitch control cabinet, makes the vaned blade of institute upwards, and hang blade in master
Blade lock is installed, locking master hangs blade on corresponding wheel hub web；II, suspender belt is enclosed within after master hangs the root area of blade and is linked into
It is linked on the suspension hook of auxiliary loop wheel machine on the suspension hook of main loop wheel machine, then after another suspender belt is enclosed within into the auxiliary tip region for hanging blade, meanwhile, need
To be inserted in a blade traction casing respectively at three blade tips of blade, and a traction is fixed on each blade traction casing
Rope；After connecting bolt between III, dismounting hub bracket and wheel hub, start main loop wheel machine and hang a liter wind wheel, auxiliary loop wheel machine traction is auxiliary to hang leaf
Piece, and allow workman to catch hold of pull rope, the direction of wind wheel is guided, when wind wheel is in plumbness, the suspender belt on auxiliary loop wheel machine is laid down,
Meanwhile, lift main loop wheel machine arm highly, wind wheel is risen to spindle flange disk highly, then coordinate rope to pull wind wheel to ring flange
Front position；IV, indicated according to the radio of tower top staff, by wind wheel near spindle flange disk, be then aligned with wind wheel
With the zero mark on spindle flange disk, after the zero mark that aligns, wind wheel is close to spindle flange disk, the mounting hole on wheel hub
Corresponded with the mounting hole on spindle flange disk, the bolt for being finally possible to penetrate again is all penetrated rear and tightened；V, will hang
Band unclamps from suspension hook, and is moved away from blade；VI, release high speed shaft brake, extract wind wheel locking pin, slow manually to rotate wind
Wheel, smoothly penetrates remaining after wheel hub and tightens；VII, high speed shaft rot is unclamped again, wind wheel is slowly rotated, when carrying
The blade of pull rope down when, rope and traction casing are removed from blade；VIII, blade lock is backed out teeth groove and is unloaded；
S9：Whether the screw-down torque for spot-check the connecting bolt of each connecting portion is qualified, and power distribution cabinet is installed and debugged.
2. under Mountain Conditions according to claim 1 large-scale wind electricity equipment construction method for hanging, it is characterised in that step
The specific layout of wind power equipment and main loop wheel machine is as follows in two：Each section tower and cabin are individually positioned in the upper and lower of tower barrel base,
Main loop wheel machine is located at the side of tower barrel base, and wind wheel is placed on main loop wheel machine lower section, and blade is placed on the right of wind wheel.
3. under Mountain Conditions according to claim 1 large-scale wind electricity equipment construction method for hanging, it is characterised in that tower
Condition is lifted 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 less than -20 DEG C, no matter any reason, it is necessary to terminate hanging immediately
Pretend industry.
4. under the Mountain Conditions according to claim 1 or 3 large-scale wind electricity equipment construction method for hanging, it is characterised in that
Before tower is lifted, reply tower barrel base is made further examination and is confirmed, is mainly to ensure that the plane on foundation ring flange contact surface
No more than 2mm, the error amount of flange outer diameter is 0~1mm to degree；Gradient is maximum no more than 2mm；Internal diameter is checked simultaneously, most
Big no more than standard value, minimum is not less than standard value 3mm；The site 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. under Mountain Conditions according to claim 4 large-scale wind electricity equipment construction method for hanging, it is characterised in that tower
Specific lifting step it is as follows：I, the lifting of bottom tower, 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 a suspender belt is fixed on each tower hoisting fixture；II, by tower two ends
Suspender belt be hung on the hook of corresponding auxiliary crane；III, while lift the crane arm of the auxiliary loop wheel machine in tower two ends, 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, until tower is hung rising in vertical
Straight state, then removes the suspender belt and tower hoisting fixture on the auxiliary loop wheel machine hook of the other end；IV, mobile the auxiliary of tower of slinging hang
Machine, makes the bottom of the section tower slowly be put down after being directed at tower barrel base；V, fixed bottom tower；VI, repeat the above steps, gradually
Remaining tower is installed.
6. under the Mountain Conditions according to claim 1 or 3 large-scale wind electricity equipment construction method for hanging, it is characterised in that
The specific lifting step of cabin is as follows：I, four skylights opened in cabin, and hung in four framework platforms corresponding to skylight
A 35t shackle and a 40t suspender belt are respectively mounted on ear；II, cabin front end and afterbody are separately fixed at 2 strops,
It is artificial to catch hold of until cabin is installed；III, auxiliary loop wheel machine is reached 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 more little higher than atop a tower ring flange, slowly move on to tower top, introduced with pilot pin.
7. under the Mountain Conditions according to claim 1 or 3 large-scale wind electricity equipment construction method for hanging, it is characterised in that
The specific debugging step of wind wheel is as follows：I, respectively installation 3 17t shackles and 3 15t suspender belts on the wheel hub of wind wheel, wherein unloading
Detain distribution triangular in shape；Whether the blade bolt that II, inspection producer are installed has loosening, and the center between sampling observation screw at random
Away from whether qualified；III, turn off storage battery power supply main switch in pitch axis cabinet, after the jointing pulled out on blade driving motor,
Blade driving motor and auxiliary generator are connected using manually operated case, and controls blade driving motor to turn using manually operated case
It is dynamic, so as to the pitch variable bearings for connecting therewith be rotated so that the zero mark hole on pitch variable bearings ring flange is in two liftings
Between hole；After IV, the above-mentioned work of completion, disconnection auxiliary generator, and the connection of manually operated case and blade driving motor is dismantled,
Then connector plug is inserted on blade driving motor again.
8. under Mountain Conditions according to claim 1 large-scale wind electricity equipment construction method for hanging, it is characterised in that step
The specific lifting step of seven Leafs is as follows：I, setting blade hoisting point position, and the good suspender belt of colligation at suspension centre, in blade from beginning to end
Cable rope in colligation；II, the suspender belt on one of blade is hung on the suspension hook of auxiliary loop wheel machine, start the arm of auxiliary loop wheel machine, will
Blade is lentamente moved at pitch variable bearings ring flange, and the zero mark hole on alignment flange disk；III, by workmen
Operation pitch control cabinet makes blade suitably become oar, and the mounting hole then corresponded to again in vane end faces and pitch variable bearings ring flange is installed
Bolt, blade nut and packing ring；IV, before crane is unclamped, one support frame need to be set up below blade tail end, it is then loose again
Open heavy-duty machine and rope；V, remaining two panels blade is lifted with reference to step I- steps IV, after the completion of assembling, remove the branch of blade tail end
Support.
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| 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 |
| CN113864124A (en) * | 2021-09-29 | 2021-12-31 | 华能江西清洁能源有限责任公司 | Wind power blade hoisting construction method under mountain land condition |
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