CN103243746A - Wind generator foundation ring precision calibrating system and construction method thereof - Google Patents
Wind generator foundation ring precision calibrating system and construction method thereof Download PDFInfo
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- CN103243746A CN103243746A CN2013101882033A CN201310188203A CN103243746A CN 103243746 A CN103243746 A CN 103243746A CN 2013101882033 A CN2013101882033 A CN 2013101882033A CN 201310188203 A CN201310188203 A CN 201310188203A CN 103243746 A CN103243746 A CN 103243746A
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Abstract
The invention discloses a technical scheme which can guarantee the horizontal precision of the upper surface of a foundation ring of a wind generator and particularly relates to a wind generator foundation ring precision calibrating system and a construction method thereof. The wind generator foundation ring precision calibrating system comprises special jacks and a flange plate arranged at the bottom of the foundation ring. The flange plate is connected to the bottom of the foundation ring for supporting and is provided with at least three through-holes, every jack comprises a cylinder body and a piston rod, and the rod body of the piston rod, which extends outside the cylinder body, is provided with a supporting table. As least three the special jacks are disposed under the foundation ring, the piston rods of the jacks penetrate through the through-holes of the flange plate, and the supporting table contacts the lower end of the flange plate. In the construction method of the wind generator foundation ring precision calibrating system, the jacks support the foundation ring firmly, and by adjusting the height of the piston rod of every jack, the foundation ring can achieve a high flatness. The piston rods are matched with the flange plate to position and support the foundation ring and to guarantee the stability of the foundation ring which weighs several tons.
Description
Technical field
The present invention relates to the large-scale wind driven generator construction field, particularly the blower foundation ring is precisely smoothed and discharge ring concrete pouring construction.
Background technology
In the middle of wind power plant built, the control of the levelness of blower foundation ring was a difficult problem in the construction.Because discharge ring be the crucial link between body of the tower and basis, and blower fan belongs to high-rise structures as base plate, discharge ring has less inclination in the horizontal direction, all will cause the horizontal eccentric throw that tower tube top is bigger.According to the relevant parameter of blower fan, the horizontal eccentric throw that can calculate tower tube top is about tens of times of the vertical maximum deviation of discharge ring.Usually require discharge ring planeness deviate can not surpass 1mm, otherwise the tower tube of blower fan depart from and will fan operation be brought greater risk or even catastrophic effect.
At present, in the face of so high level levelling degree requirement, the mode at the adjusting screw(rod) that adopts among the present blower foundation circulating application worker is adjusted has the sequence of operations standard to guarantee the planeness of discharge ring upper surface in the wind power plant foundation construction, as:
(1) the discharge ring lifting should vertically be lifted by crane gently and be risen gently to fall, and crane has the special messenger to operate special messenger commander, each work post personnel good teamwork.After the installation, in time carry out the construction of subsequent handling.
(2) in the reinforcing bar binding process, must not collide discharge ring, in order to avoid influence its intensity and stability.
(3) behind the reinforcing bar binding, when base concrete is built, submit a report asking for to manage and check and accept, should check discharge ring position and absolute altitude; Evenly blanking of periphery when building, vibrating head must not vibrate near discharge ring and supporting leg thereof, in case the discharge ring displacement.
But said method still can not the economic planeness that guarantees discharge ring reliably.Wherein, method described in (1), because discharge ring itself has several tons to tens tons deadweight, " vertical lifting is light to be risen gently to fall " is very difficult.Discharge ring can not guarantee that discharge ring can be placed on the bolt of below evenly after " gently falling " is following, often need repeatedly to sling, and adjusts the discharge ring upper surface level substantially that could make repeatedly.
In addition, the method for (2)～(3) can reduce work progress to the influence of discharge ring horizontal accuracy, but can not guarantee and improve the precision level of discharge ring construction.And, after the discharge ring lifting, need assembling reinforcement before its below concreting, be not difficult to realize and do not run into discharge ring in the process of assembling reinforcement; In the concreting process, the use that excessively limits shock club also may influence to some extent to construction quality.
Summary of the invention
The purpose of this invention is to provide a kind of construction system that guarantees wind driven generator base ring upper surface horizontal accuracy.
For realizing that the technical scheme that the object of the invention adopts is such, the accurate levelling system of a kind of wind driven generator base ring comprises special-purpose jack and is installed in the flange of discharge ring bottom, and namely described flange is and is connected the discharge ring bottom and plays a supportive role.Described flange has at least three through holes.Described special-purpose jack comprises cylinder body and piston rod, and described piston rod stretches out on the body of rod of cylinder body brace table is installed.Further, described piston rod is threaded.At least three special-purpose jack are placed on the discharge ring below, and the piston rod of described special-purpose jack passes the through hole of flange, the following end in contact of described brace table and flange.
Another object of the present invention provides a kind of job practices that adopts said system.
Be the method that the wind driven generator base ring is precisely smoothed construction, may further comprise the steps:
1) carries out the base surface construction on the foundation ditch ground of wind-driven generator to be installed, form smooth base surface.
2) be useful on the flange that supports installation in the lower end of wind driven generator base ring, described flange has at least three through holes.
3) place at least three special-purpose jack at described foundation ditch base surface.Described special-purpose jack comprises cylinder body and piston rod, and described piston rod stretches out on the body of rod of cylinder body brace table is installed, and the described body of rod has be used to the screw thread that is fastenedly connected, and described special-purpose jack can be mechanical type jackscrew or hydraulic jack.
4) by large-scale hanging device, discharge ring is placed on special-purpose jack top, make the piston rod of special-purpose jack pass the through hole of discharge ring flange in the bottom dish, described brace table is supported in the lower end of flange; The clamp nut of screwing on the top of piston rod makes special-purpose jack be connected with the discharge ring stable support.
5) height of the piston rod by adjusting each special-purpose jack makes discharge ring upper surface level.
6) after the construction of enforcement discharge ring reinforcing bar binding finishes, utilize the jack calibration again, make discharge ring upper surface levelness in the design accuracy claimed range.
7) build the scheme implementation concrete by standard base cyclic group plinth concrete and build, namely around the discharge ring and below build steel concrete, described special-purpose jack is cast in the blower foundation concrete as the support positioning element of discharge ring and discharge ring together simultaneously.
Above step can satisfy the blower foundation circulating application worker requirement under the normal condition; for having under the situations such as higher specific (special) requirements or special geology weather; when needing more reliably to satisfy required precision accurately; this construction system can further adopt the remote controlled type jack; build in the process at the discharge ring concrete; in the concrete initial setting time of bottom, also can carry out final horizontal accuracy adjustment, to guarantee the discharge ring construction precision.
When Fan Equipment adopts the adjusting bolt supporting way of traditional discharge ring, as the transition constructure scheme, the present invention adopts bolt and the shared mode of ordinary jack of regulating, each adjusting bolt is other bottom discharge ring adds an ordinary jack as discharge ring smoothing adjusting use, after finishing with jack smoothing, locking is supported and is regulated bolt, carries out discharge ring reinforcing bar binding and concrete pouring construction then.
Technique effect of the present invention is mathematical, and special-purpose jack pair discharge ring carries out firm support, and the height of the piston rod by adjusting each special-purpose jack just can be so that discharge ring reaches high planeness.In addition, the matching design of piston rod and flange has also realized the location to discharge ring, and several tons the stability of discharge ring has guaranteed to weigh.
Description of drawings
Device of the present invention can further specify by the non-limiting embodiment that accompanying drawing provides.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the discharge ring plan view.
Fig. 3 is a kind of embodiment schematic diagram of special-purpose jack.
Fig. 4 is the another kind of embodiment schematic diagram of special-purpose jack.
Among the figure: 1-discharge ring, the special-purpose jack of 2-, 3-flange, 4-piston rod, 5-clamp nut, 6-brace table, 7-cylinder body.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples, only limits to following embodiment but should not be construed the above-mentioned subject area of the present invention.Under the situation that does not break away from the above-mentioned technological thought of the present invention, according to ordinary skill knowledge and customary means, make various replacements and change, all should be included in the scope of the present invention.
Embodiment 1:
Present embodiment provides a kind of wind driven generator base ring accurate levelling system, comprises special-purpose jack 2 and the flange 3 that is installed in discharge ring 1 bottom.Described flange 3 has at least three through holes.Described special-purpose jack 2 comprises cylinder body 7 and piston rod 6, and described piston rod 6 stretches out on the body of rod of cylinder body 7 brace table 6 is installed.At least three special-purpose jack 2 are placed on discharge ring 1 below, and the piston rod 4 of described special-purpose jack 2 passes the through hole of flange 3, the following end in contact of described brace table 6 and flange 3.
Referring to Fig. 2, described discharge ring 1 is an annulus more than at least 5 tons.Its upper end is the horizontal plane of carrying blower fan, and it is high that this horizontal plane smooth read to require, and is generally positive and negative 0.5mm.The lower end mounting flange 3 of discharge ring 1.The diameter of described flange 3 so just makes discharge ring 1 be uniform-distribution with some bolts hole (being the through hole on the flange) all around greater than the diameter of discharge ring 1.
As preferably, in the present embodiment, flange 3 has four through holes, is evenly distributed on the circumference of discharge ring 1.Equally, the number of special-purpose jack 2 is corresponding with the through hole number on the flange 3, makes discharge ring 1 obtain the support of balance.
Further, described piston rod 6 is threaded rod.Adopt one of dual mode or the brace table of setting 6 that haves both at the same time.Referring to Fig. 3, described brace table 6 is two mutual fastening nuts that screw in threaded rod; Referring to Fig. 4, described brace table 6 is the disks that are welded on the body of rod of threaded rod.No matter in which way, the diameter of brace table 6 makes the weight of discharge ring 1 be supported by brace table 6 greater than the diameter of the through hole on the flange 3.
Further, move in order to prevent discharge ring 1, the end that described piston rod 4 passes described through hole screws in clamp nut 5.Described through hole is the through hole on the flange circumference.The last end in contact of described clamp nut 5 and flange 3 is with brace table 6 clamping flange dishes.
Further, can control the lifting of described piston rod 4 at far-end.One of mode that can realize is: described jack 2 is hydraulic jack, and described cylinder body 7 inside have the cavity of stores hydraulic pressure oil, and described cavity is communicated with oil pump by hydraulic tube, and the length of described hydraulic tube can prolong as required.
Embodiment 2:
Present embodiment adopts the accurate levelling system of embodiment 1 disclosed wind driven generator base ring to construct, and may further comprise the steps:
1) carries out the base surface construction on the ground of wind-driven generator to be installed, form smooth base surface.
2) at the lower end of wind driven generator base ring mounting flange 3, described flange 3 has at least three through holes.In the present embodiment, flange 3 has four through holes, is evenly distributed on the circumference of discharge ring 1.
3) place at least three jack 2 at described base surface.Described jack 2 comprises cylinder body 7 and piston rod 6, and described piston rod 6 stretches out on the body of rod of cylinder body 7 brace table 6 is installed.In the present embodiment, the number of jack 2 is corresponding with the number of the described through hole of step 2, makes discharge ring 1 obtain the support of balance.
4) by large-scale hanging device, discharge ring 1 is placed on jack 2 tops, makes the piston rod 4 of jack 2 pass the through hole of flange 3.The lower end of described brace table 6 pivot flange dishes.This step has realized simultaneously to the support of discharge ring 1 and location.
5) height of the piston rod 4 by adjusting each jack 2 makes discharge ring 1 upper surface level.In the present embodiment, before step 4) lifting, make the upper surface contact surface of flange lower end (namely with) of brace table 6 of each jack 2 be in same horizontal level as far as possible.Behind lifting discharge ring 1, need observe the levelness of the upper surface of discharge ring 1 in real time, in order to finely tune the height of the piston rod 4 of each jack 2, finally make discharge ring 1 upper surface reach higher levelness.As preferably, Lycra DNA03 digital level and the bar yardstick of employing are observed the upper surface of discharge ring 1, and its precision reaches 0.1mm, and (discharge ring planeness deviate can not surpass 1～5mm) to be higher than common requirement.
6) around discharge ring 1 and below build steel concrete.In this step, build steel concrete and normally below discharge ring 1, weave reinforcing cage, masterplate is set, pour into concrete afterwards.This step makes some jack imbed in the concrete, and after the maintenance, discharge ring 1 obtains firmly.
Further, in order to be implemented in far-end discharge ring 1 is carried out leveling, described jack 2 can far be controlled hydraulic jack for separate type.Described cylinder body 7 inside have the cavity of stores hydraulic pressure oil, and described cavity is communicated with oil pump by hydraulic tube, and the length of described hydraulic tube can prolong as required.In the present embodiment step 5, by described oil pump hydraulic oil is pressurizeed the height of control piston bar 4.As preferably, around the discharge ring 1 and after bottom reinforcement bars concreting finishes, hydraulic means is sealed.
Build in the process of steel concrete in step 6, be easy to discharge ring 1 is produced collision.If the upper surface run-off the straight of discharge ring 1.Because hydraulic tube can arbitrarily prolong, oil pump (namely can Long-distance Control jack) not in the steel concrete that will build, and build that concrete not exclusively solidifies in the steel concrete process (in the concrete initial setting time), then can be in the process of the reinforced concrete of building adjust the height of piston rod 4 by oil pump, make discharge ring 1 upper surface maintenance level.
Claims (7)
1. the accurate levelling system of wind driven generator base ring is characterized in that: comprise special-purpose jack (2) and be installed in the flange (3) of discharge ring (1) bottom; Described flange (3) has at least three through holes; Described special-purpose jack (2) comprises cylinder body (7) and piston rod (6), and described piston rod (6) stretches out on the body of rod of cylinder body (7) brace table (6) is installed; At least three special-purpose jack (2) are placed on discharge ring (1) below, and the piston rod (4) of described special-purpose jack (2) passes the through hole of flange (3), the following end in contact of described brace table (6) and flange (3).
2. the accurate levelling system of wind driven generator base ring according to claim 1, it is characterized in that: described piston rod (6) is threaded rod; Described brace table (6) is two mutual fastening nuts that screw in threaded rod, or is welded on the disk on the body of rod of threaded rod.
3. the accurate levelling system of wind driven generator base ring according to claim 2 is characterized in that: the end that described piston rod (4) passes described through hole screws in clamp nut (5), the last end in contact of described clamp nut (5) and flange (3).
4. according to claim 1, the accurate levelling system of 2 or 3 described wind driven generator base rings, it is characterized in that: described special-purpose jack (2) is as the support positioning element of discharge ring, and discharge ring (1) together, is cast in simultaneously in the blower foundation concrete.
5. the wind driven generator base ring is precisely smoothed the method for construction, it is characterized in that, may further comprise the steps:
1) carries out the base surface construction on the ground of wind-driven generator to be installed, form smooth base surface;
2) at the lower end of wind driven generator base ring mounting flange (3), described flange (3) has at least three through holes;
3) place at least three jack (2) at described base surface; Described jack (2) comprises cylinder body (7) and piston rod (6), and described piston rod (6) stretches out on the body of rod of cylinder body (7) brace table (6) is installed;
4) by large-scale hanging device, discharge ring (1) is placed on jack (2) top, make the piston rod (4) of jack (2) pass the through hole of flange (3); The lower end of described brace table (6) pivot flange dish;
5) height of the piston rod (4) by adjusting each jack (2) makes discharge ring (1) upper surface level;
6) discharge ring (1) on every side and the below build steel concrete.
6. wind driven generator base ring according to claim 5 is precisely smoothed the method for construction, it is characterized in that: jack (2) is far controlled hydraulic jack for separate type, described cylinder body (7) inside has the cavity of stores hydraulic pressure oil, and described cavity is communicated with oil pump by hydraulic tube; In the step 5, by described oil pump hydraulic oil is pressurizeed the height of control piston bar (4);
Build in the process of steel concrete in step 6, if the upper surface run-off the straight of discharge ring (1) is far controlled the height that oil pump is adjusted piston rod (4) by separate type, make discharge ring (1) upper surface level.
7. the accurate levelling system of wind driven generator base ring, it is characterized in that: when Fan Equipment adopts the adjusting bolt supporting way of traditional discharge ring, as the transition constructure scheme, the present invention adopts bolt and the shared mode of ordinary jack of regulating, each adjusting bolt is other bottom discharge ring adds an ordinary jack as discharge ring smoothing adjusting and supplemental support use, after finishing with jack smoothing, locking is supported and is regulated bolt, carries out discharge ring reinforcing bar binding and concrete pouring construction then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101882033A CN103243746A (en) | 2013-05-20 | 2013-05-20 | Wind generator foundation ring precision calibrating system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101882033A CN103243746A (en) | 2013-05-20 | 2013-05-20 | Wind generator foundation ring precision calibrating system and construction method thereof |
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| CN2013101882033A Pending CN103243746A (en) | 2013-05-20 | 2013-05-20 | Wind generator foundation ring precision calibrating system and construction method thereof |
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Cited By (7)
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| CN103953062A (en) * | 2014-05-19 | 2014-07-30 | 广东明阳风电产业集团有限公司 | Jacket structure with base ring leveling function |
| CN103995542A (en) * | 2014-05-04 | 2014-08-20 | 江苏大学 | Level adjusting device and method thereof |
| CN104929148A (en) * | 2015-07-06 | 2015-09-23 | 同济大学建筑设计研究院(集团)有限公司 | Reverse installation reinforcement system and method of wind power generation tower foundation ring foundation |
| CN106436735A (en) * | 2016-07-27 | 2017-02-22 | 中国能源建设集团安徽电力建设第工程有限公司 | Wind turbine foundation ring installation method |
| CN107339578A (en) * | 2017-08-29 | 2017-11-10 | 辽宁鑫丰矿业（集团）有限公司 | Height-adjustable door frame and Coal Transport equipment |
| CN108412673A (en) * | 2018-05-14 | 2018-08-17 | 廖韶丹 | Integral type permanent magnetism hydrogenerator |
| CN109524907A (en) * | 2018-11-14 | 2019-03-26 | 青海送变电工程有限公司 | A kind of combined support frame and construction method for the assembling of series compensation platform ground |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103995542A (en) * | 2014-05-04 | 2014-08-20 | 江苏大学 | Level adjusting device and method thereof |
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| CN104929148A (en) * | 2015-07-06 | 2015-09-23 | 同济大学建筑设计研究院(集团)有限公司 | Reverse installation reinforcement system and method of wind power generation tower foundation ring foundation |
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| CN107339578A (en) * | 2017-08-29 | 2017-11-10 | 辽宁鑫丰矿业（集团）有限公司 | Height-adjustable door frame and Coal Transport equipment |
| CN108412673A (en) * | 2018-05-14 | 2018-08-17 | 廖韶丹 | Integral type permanent magnetism hydrogenerator |
| CN109524907A (en) * | 2018-11-14 | 2019-03-26 | 青海送变电工程有限公司 | A kind of combined support frame and construction method for the assembling of series compensation platform ground |
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