CN107165787A - A kind of installation method of tower drum flange - Google Patents
A kind of installation method of tower drum flange Download PDFInfo
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- CN107165787A CN107165787A CN201710293428.3A CN201710293428A CN107165787A CN 107165787 A CN107165787 A CN 107165787A CN 201710293428 A CN201710293428 A CN 201710293428A CN 107165787 A CN107165787 A CN 107165787A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
-
- 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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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of installation method of tower drum flange, detected by flange, tower detection, flange is fixed, cylinder is installed, welding measure, the assembling of bottom flange, cylinder connection, bolt connection, cylinder positioning welding and weld completion detect process realize jointly.The advantage of the invention is that：Detected using flange, tower detection, flange is fixed, cylinder is installed, welding measure, the assembling of bottom flange, cylinder connection, bolt connection, cylinder positioning welding and weld completion detection each process cooperation, so as to effectively avoid flange distortion, ensure the flatness of flange, this method convenient welding, facilitates the installation of cylinder and flange to connect.
Description
Technical field
The present invention relates to Oversea wind power generation field, more particularly to a kind of installation method of tower drum flange.
Background technology
Wind-power tower is exactly the tower bar of wind-power electricity generation, is mainly played a supportive role in wind power generating set, while absorbing machine
Group vibrations.The technological process of production of wind-power tower is typically as follows：Numerical control cutting machine blanking, slab needs bevel, veneer reeling machine volume
After sheet metal forming, spot welding, positioning carries out the welding of inside and outside longitudinal joint after confirmation, after circularity is checked, carry out if you have questions it is secondary relatively round,
After the completion of single-unit barrel soldering, a postwelding is grouped using hydraulic pressure group pair roller frame, the inside and outside circumferential weld of welding, the tolerance such as linearity
After inspection, after welded flange, carry out weld seam nondestructive inspection and flatness inspection, sandblasting, after spray painting processing, complete internal installation and
After product inspection, transport to erecting bed.
At present, the manufacture that traditional tower is is typically to be welded by some shell ring head and the tail, still, this method system
Tower can reach it is more than 70 meters long, carry out tower whole Transporting when, it is inconvenient.Therefore a kind of scheme is first proposed, will
Tower is changed to split-type structural, i.e., tower is integrally divided into three-stage structure, connected between two adjacent segmentations by flange.And
Current technique, when flange is connected into tower, when being welded, because welding heat is high, flange is easily deformed, and is put down
Face degree does not reach influence, and the length due to tower in itself is long, therefore when flange does not reach requirement, may result in
Whole tower inconsequent, influence is used.
The content of the invention
Flange distortion can be effectively prevented the technical problem to be solved in the present invention is to provide one kind, ensure planeness of flange
Tower drum flange installation method.
In order to solve the above technical problems, the technical scheme is that：A kind of installation method of tower drum flange, its innovative point
It is：Detected by flange, tower is detected, flange is fixed, cylinder is installed, welding is measured, bottom flange is assembled, cylinder is connected, spiral shell
Tether connect, cylinder positioning welding and welding complete detection process realize jointly.
Further, the peace installation method is used to realize the connection between two adjacent cylinders and flange, by cylinder point
Not marked as a horn body, two horn bodies, corresponding two adpting flanges also marked as No. one flange, No. two flanges, the peace
Dress method is specially：
a）Flange is detected：According to the flange divided edge figure of confirmation, dimension control is done to flange and cylinder supplied materials by quality inspection personnel, and
0 °, 90 °, 180 °, 270 ° of several assembling anchor points are found out on flange；
b）Tower is detected：Examine cylinder supplied materials, measurement shell ring and flange butt weld position diameter and ovality；
c）Flange is fixed：A number flange is positioned on horizontal location moulding bed, and measures a Flange Plane degrees of data, if plane
Degree does not reach standard, then does fixed after level correction；
d）Cylinder is installed：The horn body for needing to be connected with a flange is placed in the top of a flange, and ensures a horn
Body longitudinal joint is arranged by drawing, then to being consolidated at the connection circumferential weld of a horn body and a flange by the way of spot welding positioning
It is fixed；
e）Welding measurement：A flange and a horn body after step d midpoint solid weldings are determined integrally are stood up, then horizontal survey one
Number planeness of flange, it is ensured that reach after standard, fixed one of backing welding is done at the connection circumferential weld of a flange and a horn body；
f）Bottom flange assembling：No. two flanges and two horn the bodies also above-mentioned flow of use are assembled, positions and puts to weld and integrally turn over afterwards
Body, measurement No. two planeness of flange, backing weldings；
g）Cylinder is connected：By a flange and a horn body horizontal positioned, i.e. a horn body under, a flange is upper, one
FB 30*3 backing plate is installed on the inside of number flange face, then integrally stood up No. two flanges and two horn bodies, i.e., No. two flanges exist
Under, two horn bodies are connected by screw bolts a flange and No. two flanges upper, and after being alignd with a flange；
h）Bolt connection：When being attached using bolt, bolt is distributed as, two row's spiral shells inside and outside a flange and No. two flanges
Keyhole is at interval of uniform 1 bolt in 1 hole, and inside and outside each uniform 75 bolt and nuts need 150 bolt and nuts, tightened altogether
Nut simultaneously corrects the position for examining flange, interior outside bolt and nut is locked, untill flange outer edge gapless；
i）Cylinder positioning welding：Cylinder positioning and inspection declaration it is qualified after, on turning rolls simultaneously be symmetrically welded left and right twice circumferential weld,
During welding, weld 2 ~ 3 layers in outside first, then welded after the back chipping of inner side, during according to diplomatic in flange distortion situation
For welding, in welding process, the deformation of flange is examined, symmetrical bracing wire is detected on the inside of flange；
j）Welding completes detection：Flange welding work is completed after weld seam cooling completely simultaneously, is removed bolt and nut, is examined flange face
Deformation, according to the requirement of general making figure, planeness of flange requires control within 2mm, flange body postwelding ovality
Control completes welding within ± 2.0mm.
Further, in the step b, if cylinder supplied materials can not meet requirement, need to correct back to circle to shell ring,
Fill T-shaped reinforcing ring at shell ring lower port inward 300mm to reinforce, stiffening ring will have sufficient intensity, ovality requirement≤10mm.
Further, in the step d, shell ring and flange docking misalignment tolerance will be controlled within 3mm；Come from JMU
Shell ring have 0 scale designation, the mark should align with 0 degree of position of flange.
Further, it in the step j, must be tested before welding, examine project to include the state of bolt, docking
The state and misalignment size of groove, the tolerance 3mm of misalignment size.
Further, in each step, for the flatness of flange, its specific measuring process is：
a）The selection of survey tool：The Easy-laserTME910, E915 manufactured from Damalini AB companies of Sweden；
b）The installation of transmitter：The swivel head of transmitter is placed in center chassis, and with die nut by two fixed screws according to
Secondary pretension in three times；
c）The erection of transmitter：The longitudinal seam of cylinder is turned into 6 o'clock position, transmitter is placed in 4 thirty or so position
Put, outwardly, two adjustment knobs are inwardly for fulcrum；
d）Measure the determination of density：Density is measured, how many point are exactly measured on flange, measurement density is too high, increases meaningless
Workload；Measure density too low, the flatness variable quantity and variation tendency of flange can not be reflected completely, or even spike point can be leaked
Fall, so, rational measurement density is very important；
e）The numbering of measurement point：The commissure of cylinder starts, number consecutively clockwise, if surveying negative camber simultaneously, first interior rear outer
Numbering；
f）The coarse adjustment of lasing area：Using line-of-sight course, the laser at 3 points is all adjusted to target central rings, be near point, is leaned on as far as possible at 1 point
Nearly generating laser fulcrum, 2 points are intersection points on the outside of the extended line and flange of A knobs and fulcrum, and 3 points are knob B and branch
Intersection point on the outside of the extended line and flange of point；E5 laser detectors are first positioned at 1 point, E5 is moved up and down in feeler lever,
Laser is fallen in PSD centers, fix two screws, prevent E5 from being slided on feeler lever；Two targets are placed near point, make laser
Pass through intermediate gap completely；Target is positioned at 2 points, B knobs is adjusted, laser is fallen in intermediate gap；Target is positioned over
3 points, A knobs are adjusted, laser is fallen in intermediate gap；
g）The accurate adjustment of lasing area：Laser delicate-adjustment is needed when being measured to top flange, other flanges are not needed, using 3 points
Method, the detector readings at 3 points are controlled in the range of 0~0.2；E5 is positioned at 1 point, selection is entered by OK surveys
Range sequence, by 0 by this reading logical zero；E5 is positioned at 2 points, B knobs is adjusted, makes scope of the reading 0~0.2
It is interior；E5 is positioned at 3 points, A knobs is adjusted, makes reading in the range of 0~0.2；Repeating above step ensures 3 points of readings
Number is all in the range of 0~0.2；
h）The erection of laser detector：Detector will be locked on feeler lever, and the center of gravity of detector will fall on magnetic absorbing seat, it is impossible to fall
Outside magnetic absorbing seat；
i）The measurement of planeness：The flatness of flange to needing to measure is measured, and judges Flange Plane according to measurement result
Whether degree reaches requirement.
The advantage of the invention is that：In the present invention, detected using flange, tower detection, flange is fixed, cylinder is installed,
Welding measurement, the assembling of bottom flange, cylinder connection, bolt connection, cylinder positioning welding and welding complete to detect matching somebody with somebody for each process
Close, so as to effectively avoid flange distortion, it is ensured that the flatness of flange, this method convenient welding, facilitate cylinder and flange
Installation connection.
By the way that shell ring and flange are docked into misalignment allowance control within 3mm, produced so as to effective surface flanges face
Raw unnecessary deformation, it is ensured that the flatness of flange；In addition, being carried out by the quantity of the bolt to connection, specific distributing position
In rational control arrangement, the contact so as to ensure flange connection, and energy surface flanges are deformed.
For the measurement of planeness of flange, by using special survey tool and coordinate the sides of 3 points of adjustment of lasing area
Method, so that it is guaranteed that lasing area is accurate, it is ensured that the planeness of flange of measurement it is accurate, be subsequent handling be smoothed out provide
Good basic guarantee.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the flange divided edge figure in the present invention.
Fig. 2 for the present invention in flange connection bolt distribution map.
Fig. 3 is your schematic diagram of bolt aggegation in the present invention.
Fig. 4 is symmetrical bracing wire detects schematic diagram on the inside of flange in the present invention.
Fig. 5 is flange gradient schematic diagram in the present invention.
Fig. 6 is planeness of flange schematic diagram in the present invention.
Fig. 7 is the schematic diagram of generating laser in the present invention.
Fig. 8 is the erection schematic diagram of generating laser in the present invention.
Fig. 9 is measurement point numbering schematic diagram in the present invention.
Figure 10 determines schematic diagram for 3 points in the present invention.
Figure 11 is the tower stepwise schematic views in the present invention.
Embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
The installation method of the tower drum flange of the present invention is achieved especially by following step：
The first step, flange detection：According to the flange divided edge figure of confirmation, as shown in figure 1, by quality inspection personnel to flange and cylinder supplied materials
Dimension control is done, and finds out on flange 0 °, 90 °, 180 °, 270 ° of several assembling anchor points.
Second step, tower detection：Examine cylinder supplied materials, measurement shell ring and flange butt weld position diameter and ovality.
If cylinder supplied materials can not meet requirement, need to correct back to circle to shell ring, in shell ring lower port 300mm inward
Place fills T-shaped reinforcing ring and reinforced, and stiffening ring will have sufficient intensity, ovality requirement≤10mm.
3rd step, flange is fixed：A number flange is positioned on horizontal location moulding bed, and measures a Flange Plane number of degrees
According to flatness basis for estimation such as table 1, if flatness does not reach requirement, does fixed after level correction.
Table 1 is the flatness judgment criteria table of flange in the present invention
| Flange | Push up flange | Stage casing flange | Hypomere flange |
| Standard | 0.35-0.5mm | 1-1.5mm | 1.5-2mm |
Table 1
In the present invention, as shown in figure 11, tower is divided into three sections of upper, middle and lower, is provided with and connects with windmill on the top of epimere tower
The top flange 11 connect, is connected between epimere tower and stage casing tower by stage casing flange 12, and stage casing tower passes through with hypomere tower
Hypomere flange 13 is connected, and the planarity requirements of each flange are with reference to table 1.
4th step, cylinder is installed：The horn body for needing to be connected with a flange is placed in the top of a flange, and really
Protect a horn body longitudinal joint to arrange by drawing, then to positioning using spot welding at the connection circumferential weld of a horn body and a flange
Mode fix.
Shell ring and flange docking misalignment tolerance will be controlled within 3mm；There is 0 scale designation from the JMU shell rings come, the mark
It should be alignd with 0 degree of position of flange.
5th step, welding measurement：A flange and a horn body after step d midpoint solid weldings are determined integrally are stood up, then
Number planeness of flange of horizontal survey a, it is ensured that planeness of flange is reached after requirement, by the company of a flange and a horn body
Connect and one of backing welding is done at circumferential weld fix.
6th step, the assembling of bottom flange：No. two flanges and two horn bodies are also assembled using above-mentioned flow, positions and puts and weld
It is overall afterwards to stand up, measure No. two planeness of flange, backing weldings.
7th step, cylinder connection：By a flange and a horn body horizontal positioned, i.e. a horn body under, a flange
Upper, FB 30*3 backing plate is installed on the inside of a flange face, then integrally stood up No. two flanges and two horn bodies, i.e., two
Number flange is under, and two horn bodies are connected by screw bolts a flange and No. two flanges upper, and after being alignd with a flange.
8th step, bolt connection：When being attached using bolt, the distribution of bolt is as shown in Fig. 2 a flange and two
Two row's bolts hole are at interval of uniform 1 bolt in 1 hole inside and outside number flange, and inner bolt nut 2 respectively needs 75 with outer bolt nut 1
It is individual, 150 bolt and nuts are needed altogether, are tightened nut and are corrected the position for examining flange, by inner bolt nut 2 and outer bolt spiral shell
Mother 1 locks, untill flange outer edge gapless, as shown in Figure 3.
9th step, cylinder positioning welding：Cylinder positioning and inspection declaration it is qualified after, on turning rolls simultaneously be symmetrically welded it is left and right
Twice circumferential weld, during welding, first outside weld 2 ~ 3 layers, then after the back chipping of inner side weld, during according to flange distortion feelings
Condition is inside and outside alternately to weld, and in welding process, examines the deformation of flange, the symmetrical bracing wire detection on the inside of flange, such as Fig. 4 institutes
Show.
Tenth step, welding completes detection：Flange welding work is completed after weld seam cooling completely simultaneously, removes bolt and nut,
Flange facial disfigurement situation is examined, according to the requirement of general making figure, planeness of flange requires control within 2mm, flange body
Postwelding ovality is controlled within ± 2.0mm, completes welding.
It must be tested before welding, the project of inspection includes state, the state of butting grooves and the misalignment chi of bolt
It is very little, the tolerance 3mm of misalignment size.
In each above-mentioned step, when the flatness for flange is measured, its specific measuring process passes through following
Step is achieved：
The first step, the selection of survey tool：The Easy-laserTME910 manufactured from Damalini AB companies of Sweden,
E915。
Second step, the installation of transmitter：The swivel head of transmitter is placed in center chassis, and it is solid by two with die nut
Determine screw pretension in three times successively, as shown in Figure 7.
3rd step, the erection of transmitter：As shown in figure 8, the seam of vertical weldering 4 of cylinder is turned into 6 o'clock position, it will launch
Device 3 is placed in 4 thirty right positions, and outwardly, two adjustment knobs are inwardly for fulcrum.
4th step, measures the determination of density：Density is measured, how many point are exactly measured on flange, measurement density is too high, increases
Plus meaningless workload；Measure density too low, can not reflect the flatness variable quantity and variation tendency of flange completely, or even can be by
Spike point is missed, so, rational measurement density is very important.
5th step, the numbering of measurement point：The commissure of cylinder starts, number consecutively clockwise, if surveying negative camber simultaneously,
It is outer after in first to number, as shown in Figure 9.
6th step, the coarse adjustment of lasing area：Using line-of-sight course, the laser at 3 points is all adjusted to target central rings, such as Figure 10
Shown, 1 point is near point, close proximity to generating laser fulcrum, and 2 points are on the outside of the extended line and flange of A knobs and fulcrum
Intersection point, 3 points are intersection points on the outside of the extended line and flange of knob B and fulcrum；First by E5（That is Sweden Damalini AB
The Easy-laserTME915 of company's manufacture）Laser detector is positioned at 1 point, and E5 is moved up and down in feeler lever, falls laser
In PSD centers, two screws are fixed, prevent E5 from being slided on feeler lever；Two targets are placed near point, laser is passed through completely
Intermediate gap；Target is positioned at 2 points, B knobs is adjusted, laser is fallen in intermediate gap；Target is positioned over, tune at 3 points
Whole A knobs, make laser fall in intermediate gap.
The adjustment knob of generating laser, coarse adjustment knob is used, locking knob during coarse adjustment, and only lock coarse adjustment knob, fine setting is not locked
Knob；Vernier knob is checked, vernier knob normal position is threaded to, at coarse adjustment knob 2.5mm；Unclamp locking knob；Adjust
Laser is adjusted to pinwheel gap by whole coarse adjustment knob, range estimation；Fixed locking knob；Vernier knob, is used during accurate adjustment；Check locking rotating
Button, confirmation has been locked；Monitored with main frame, adjust vernier knob, reach required data；Note no more than range
5.5mm, is otherwise likely to result in adjusting the damage of closely-pitched.
7th step, the accurate adjustment of lasing area：Laser delicate-adjustment is needed when being measured to top flange, other flanges are not needed,
Using line-of-sight course, the detector readings at 3 points are controlled in the range of 0~0.2；E5 is positioned at 1 point, selection is pressed
OK enters process of measurement, by 0 by this reading logical zero；E5 is positioned at 2 points, B knobs is adjusted, makes reading 0~0.2
In the range of；E5 is positioned at 3 points, A knobs is adjusted, makes reading in the range of 0~0.2；Repeating above step ensures
3 readings are all in the range of 0~0.2.
8th step, the erection of laser detector：Detector will be locked on feeler lever, and the center of gravity of detector will fall in magnetic absorbing seat
On, it can not fall outside magnetic absorbing seat.
9th step, the measurement of planeness：The flatness of flange to needing to measure is measured, and is judged according to measurement result
Whether planeness of flange reaches requirement.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (6)
1. a kind of installation method of tower drum flange, it is characterised in that：Detected by flange, tower is detected, flange is fixed, cylinder is pacified
It is jointly real that dress, welding measurement, the assembling of bottom flange, cylinder connection, bolt connection, cylinder positioning welding and welding complete detection process
It is existing.
2. the installation method of tower drum flange according to claim 1, it is characterised in that：The peace installation method is used to realize two
Connection between individual adjacent cylinder and flange, by cylinder respectively marked as a horn body, two horn bodies, corresponding two connections
Flange also marked as No. one flange, No. two flanges, the installation method is specially：
a）Flange is detected：According to the flange divided edge figure of confirmation, dimension control is done to flange and cylinder supplied materials by quality inspection personnel, and
0 °, 90 °, 180 °, 270 ° of several assembling anchor points are found out on flange；
b）Tower is detected：Examine cylinder supplied materials, measurement shell ring and flange butt weld position diameter and ovality；
c）Flange is fixed：A number flange is positioned on horizontal location moulding bed, and measures a Flange Plane degrees of data, if plane
Degree does not reach standard, then does fixed after level correction；
d）Cylinder is installed：The horn body for needing to be connected with a flange is placed in the top of a flange, and ensures a horn
Body longitudinal joint is arranged by drawing, then to being consolidated at the connection circumferential weld of a horn body and a flange by the way of spot welding positioning
It is fixed；
e）Welding measurement：A flange and a horn body after step d midpoint solid weldings are determined integrally are stood up, then horizontal survey one
Number planeness of flange, it is ensured that reach after standard, fixed one of backing welding is done at the connection circumferential weld of a flange and a horn body；
f）Bottom flange assembling：No. two flanges and two horn the bodies also above-mentioned flow of use are assembled, positions and puts to weld and integrally turn over afterwards
Body, measurement No. two planeness of flange, backing weldings；
g）Cylinder is connected：By a flange and a horn body horizontal positioned, i.e. a horn body under, a flange is upper, one
FB 30*3 backing plate is installed on the inside of number flange face, then integrally stood up No. two flanges and two horn bodies, i.e., No. two flanges exist
Under, two horn bodies are connected by screw bolts a flange and No. two flanges upper, and after being alignd with a flange；
h）Bolt connection：When being attached using bolt, bolt is distributed as, two row's spiral shells inside and outside a flange and No. two flanges
Keyhole is at interval of uniform 1 bolt in 1 hole, and inside and outside each uniform 75 bolt and nuts need 150 bolt and nuts, tightened altogether
Nut simultaneously corrects the position for examining flange, interior outside bolt and nut is locked, untill flange outer edge gapless；
i）Cylinder positioning welding：Cylinder positioning and inspection declaration it is qualified after, on turning rolls simultaneously be symmetrically welded left and right twice circumferential weld,
During welding, weld 2 ~ 3 layers in outside first, then welded after the back chipping of inner side, during according to diplomatic in flange distortion situation
For welding, in welding process, the deformation of flange is examined, symmetrical bracing wire is detected on the inside of flange；
j）Welding completes detection：Flange welding work is completed after weld seam cooling completely simultaneously, is removed bolt and nut, is examined flange face
Deformation, according to the requirement of general making figure, planeness of flange requires control within 2mm, flange body postwelding ovality
Control completes welding within ± 2.0mm.
3. the installation method of tower drum flange according to claim 2, it is characterised in that：In the step b, if cylinder comes
Material can not meet requirement, then need to correct back to circle to shell ring, and T-shaped reinforcing ring is filled at shell ring lower port inward 300mm and is reinforced,
Stiffening ring will have sufficient intensity, ovality requirement≤10mm.
4. the installation method of tower drum flange according to claim 2, it is characterised in that：In the step d, shell ring and flange
Docking misalignment tolerance will be controlled within 3mm；There is 0 scale designation from the JMU shell rings come, 0 degree of position that the mark should be with flange
Alignment.
5. the installation method of tower drum flange according to claim 2, it is characterised in that：, must before welding in the step j
It must test, the project of inspection includes state, the state of butting grooves and the misalignment size of bolt, the tolerance of misalignment size
3mm。
6. the installation method of tower drum flange according to claim 2, it is characterised in that：In each step, for flange
Flatness its specific measuring process be：
a）The selection of survey tool：The Easy-laserTME910, E915 manufactured from DamaliniAB companies of Sweden；
b）The installation of transmitter：The swivel head of transmitter is placed in center chassis, and with die nut by two fixed screws according to
Secondary pretension in three times；
c）The erection of transmitter：The longitudinal seam of cylinder is turned into 6 o'clock position, transmitter is placed in 4 thirty right positions, is propped up
Outwardly, two adjustment knobs are inwardly for point；
d）Measure the determination of density：Density is measured, how many point are exactly measured on flange, measurement density is too high, increases meaningless
Workload；Measure density too low, the flatness variable quantity and variation tendency of flange can not be reflected completely, or even spike point can be leaked
Fall, so, rational measurement density is very important；
e）The numbering of measurement point：The commissure of cylinder starts, number consecutively clockwise, if surveying negative camber simultaneously, first interior rear outer
Numbering；
f）The coarse adjustment of lasing area：Using line-of-sight course, the laser at 3 points is all adjusted to target central rings, be near point, is leaned on as far as possible at 1 point
Nearly generating laser fulcrum, 2 points are intersection points on the outside of the extended line and flange of A knobs and fulcrum, and 3 points are knob B and branch
Intersection point on the outside of the extended line and flange of point；E5 laser detectors are first positioned at 1 point, E5 is moved up and down in feeler lever,
Laser is fallen in PSD centers, fix two screws, prevent E5 from being slided on feeler lever；Two targets are placed near point, make laser
Pass through intermediate gap completely；Target is positioned at 2 points, B knobs is adjusted, laser is fallen in intermediate gap；Target is positioned over
3 points, A knobs are adjusted, laser is fallen in intermediate gap；
g）The accurate adjustment of lasing area：Laser delicate-adjustment is needed when being measured to top flange, other flanges are not needed, using 3 points
Method, the detector readings at 3 points are controlled in the range of 0~0.2；E5 is positioned at 1 point, selection is entered by OK surveys
Range sequence, by 0 by this reading logical zero；E5 is positioned at 2 points, B knobs is adjusted, makes scope of the reading 0~0.2
It is interior；E5 is positioned at 3 points, A knobs is adjusted, makes reading in the range of 0~0.2；Repeating above step ensures 3 points of readings
Number is all in the range of 0~0.2；
h）The erection of laser detector：Detector will be locked on feeler lever, and the center of gravity of detector will fall on magnetic absorbing seat, it is impossible to fall
Outside magnetic absorbing seat；
i）The measurement of planeness：The flatness of flange to needing to measure is measured, and judges Flange Plane according to measurement result
Whether degree reaches requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293428.3A CN107165787A (en) | 2017-04-28 | 2017-04-28 | A kind of installation method of tower drum flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293428.3A CN107165787A (en) | 2017-04-28 | 2017-04-28 | A kind of installation method of tower drum flange |
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| CN107165787A true CN107165787A (en) | 2017-09-15 |
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| CN201710293428.3A Pending CN107165787A (en) | 2017-04-28 | 2017-04-28 | A kind of installation method of tower drum flange |
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| CN (1) | CN107165787A (en) |
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| CN107876943A (en) * | 2017-11-30 | 2018-04-06 | 南通蓝岛海洋工程有限公司 | A kind of building technology of wind-power tower |
| CN108637594A (en) * | 2018-03-30 | 2018-10-12 | 南通振华重型装备制造有限公司 | A kind of true flange production method of supporting leg |
| CN109079281A (en) * | 2018-09-13 | 2018-12-25 | 武汉冶钢结构有限责任公司 | The welding method of spherical tank manhole flange and manhole flange |
| CN109570802A (en) * | 2018-11-26 | 2019-04-05 | 平高集团有限公司 | A kind of welding method and welding platform for preventing flange welding from deforming |
| CN111715986A (en) * | 2020-07-21 | 2020-09-29 | 郑州九冶三维化工机械有限公司 | Manufacturing method of large-diameter thick-wall flange cylinder |
| CN111730179A (en) * | 2020-07-08 | 2020-10-02 | 南通泰胜蓝岛海洋工程有限公司 | Welding process of tower frame door frame |
| CN112935609A (en) * | 2021-03-31 | 2021-06-11 | 无锡海核装备科技有限公司 | Tool and method for field installation of large flange |
| CN114309883A (en) * | 2022-01-11 | 2022-04-12 | 上海江南长兴造船有限责任公司 | Method for controlling installation precision of liquid cargo pump folding pipe of liquefied natural gas carrier |
| CN116213981A (en) * | 2022-12-08 | 2023-06-06 | 中海福陆重工有限公司 | Construction process of large-diameter offshore wind power flange |
| CN118274749A (en) * | 2024-06-04 | 2024-07-02 | 泰州汇品不锈钢有限公司 | Flange quality detection device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876943A (en) * | 2017-11-30 | 2018-04-06 | 南通蓝岛海洋工程有限公司 | A kind of building technology of wind-power tower |
| WO2019104814A1 (en) * | 2017-11-30 | 2019-06-06 | 南通蓝岛海洋工程有限公司 | Construction process for wind power tower barrel |
| CN108637594A (en) * | 2018-03-30 | 2018-10-12 | 南通振华重型装备制造有限公司 | A kind of true flange production method of supporting leg |
| CN109079281A (en) * | 2018-09-13 | 2018-12-25 | 武汉冶钢结构有限责任公司 | The welding method of spherical tank manhole flange and manhole flange |
| CN109570802A (en) * | 2018-11-26 | 2019-04-05 | 平高集团有限公司 | A kind of welding method and welding platform for preventing flange welding from deforming |
| CN111730179B (en) * | 2020-07-08 | 2022-04-05 | 南通泰胜蓝岛海洋工程有限公司 | Welding process of tower frame door frame |
| CN111730179A (en) * | 2020-07-08 | 2020-10-02 | 南通泰胜蓝岛海洋工程有限公司 | Welding process of tower frame door frame |
| CN111715986B (en) * | 2020-07-21 | 2021-11-05 | 郑州九冶三维化工机械有限公司 | Manufacturing method of large-diameter thick-wall flange cylinder |
| CN111715986A (en) * | 2020-07-21 | 2020-09-29 | 郑州九冶三维化工机械有限公司 | Manufacturing method of large-diameter thick-wall flange cylinder |
| CN112935609A (en) * | 2021-03-31 | 2021-06-11 | 无锡海核装备科技有限公司 | Tool and method for field installation of large flange |
| CN112935609B (en) * | 2021-03-31 | 2024-04-02 | 无锡海核装备科技有限公司 | Tool and method for field installation of large flange |
| CN114309883A (en) * | 2022-01-11 | 2022-04-12 | 上海江南长兴造船有限责任公司 | Method for controlling installation precision of liquid cargo pump folding pipe of liquefied natural gas carrier |
| CN114309883B (en) * | 2022-01-11 | 2024-05-17 | 上海江南长兴造船有限责任公司 | Installation precision control method for liquefied natural gas ship liquid cargo pump folding pipe |
| CN116213981A (en) * | 2022-12-08 | 2023-06-06 | 中海福陆重工有限公司 | Construction process of large-diameter offshore wind power flange |
| CN118274749A (en) * | 2024-06-04 | 2024-07-02 | 泰州汇品不锈钢有限公司 | Flange quality detection device |
| CN118274749B (en) * | 2024-06-04 | 2024-07-26 | 泰州汇品不锈钢有限公司 | Flange quality detection device |
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Application publication date: 20170915 |