CN104912096A - Land wind turbine foundation drainage system - Google Patents
Land wind turbine foundation drainage system Download PDFInfo
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- CN104912096A CN104912096A CN201510217739.2A CN201510217739A CN104912096A CN 104912096 A CN104912096 A CN 104912096A CN 201510217739 A CN201510217739 A CN 201510217739A CN 104912096 A CN104912096 A CN 104912096A
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Abstract
The invention belongs to the technical field of wind turbines and particularly relates to a land wind turbine foundation drainage system. The land wind turbine foundation drainage system is technically characterized in that a ring of rain shields is arranged at the position, higher than the surface of concrete by a certain distance, of the outer wall of a steel cylinder along a cylinder body of the steel cylinder, an annular open trench surrounding the steel cylinder is formed in the ground away from the outer wall of the steel cylinder by a certain distance, the annular open trench is communicated with two direct discharging open trenches, and the ends of the two direct discharging open trenches are each provided with a water collecting well or the two direct discharging open trenches discharge rainwater directly according to terrain; an apron is formed in the ground between the annular open trench and the steel cylinder by making a slope through mortar building materials; factice dampproof coatings are arranged on the inner wall and the outer wall of the cylinder body of the steel cylinder and located in a certain up-down area of the contact surface of the outer wall of the steel cylinder and the surface of the concrete. The complete drainage system is designed for preventing rainwater from eroding and damaging concrete on the steel cylinder and concrete contact interface in a wind turbine foundation, preventing a crack from further expanding, and effectively guaranteeing the reliability of the wind turbine foundation.
Description
Technical field
The invention belongs to blower fan technical field, be specifically related to a kind of land blower foundation drainage system.
Background technology
Current, along with a large amount of construction of land blower fan, because of rocking tendency cannot normally run greatly, the accident resulting from poor quality of projects such as even to collapse happens occasionally.Wherein most engineering accident comes from long-term under wind action, and formation crack easily appears drawing crack or localized crush, in the concrete that near main air direction, steel cylinder contacts interface with concrete.Along with continuing to increase of crack, blower fan must be caused to occur waving aggravation, the serious engineering accident such as even to collapse.Research shows, present problems blower fan is in rocking process, and continuous rain is mingled with under cement paste extrudes and ooze from the crack of steel cylinder and concrete contact interface, accelerates the expansion in contact interface crack further.
The impact that rain erosion causes steel cylinder to contact interface concrete breakage with concrete is mainly reflected in the following aspects:
(1), in the process of waving at blower fan, the rainwater in crack will form head extruding to concrete, and the large young pathbreaker of head extruding force increases along with the continuous expansion in crack.Through washing away for a long time, head extruding force certainly will cause the concrete serious damage in crack place, the main cause of extruding and oozing the generation of lower phenomenon of this cement paste that namely problem blower fan is common.
(2) due to the corrosiveness of rainwater, also will bring steel cylinder and concrete chemical attack, cause further expanding of crack.
(3) replace season in Winter-Spring, the Frozen-thawed cycled of rainwater will cause the concrete spalling in crack district, the concrete breakage of aggravation further.
Fail to fully take into account rain erosion contacts interface concrete breakage with concrete acceleration to steel cylinder in blower foundation in traditional blower foundation design, therefore do not take corresponding drainage system to solve this problem.
Summary of the invention
The object of the invention is to the deficiency designed for existing blower foundation, a kind of land blower foundation drainage system is provided.The present invention with erosion and the destruction of avoiding rainwater steel cylinder in blower foundation to be contacted to interface concrete with concrete by the drainage system of design complete set, is prevented further expanding of crack, will effectively ensure the reliability of blower foundation.
The object of the invention is to realize by the following technical solutions: this land blower foundation drainage system, blower foundation is be embedded in the steel cylinder in the concrete of place; Be characterized in: in the position of the outer span concrete surface certain altitude of steel cylinder, one circle weather shield is set along steel cylinder stack shell, ground apart from steel cylinder outer wall certain distance arranges an annular open drain around steel cylinder, this annular open drain and two in line open drain UNICOMs, arrange collecting well respectively two in line open drain ends or will definitely directly discharge by rainwater according to ground; Ground between annular open drain to steel cylinder look for domatic to become aproll by mortar constructional materials; In the upper and lower certain area of steel cylinder outer wall and concrete surface contact surface, ointment moisture barrier coatings is arranged to steel cylinder stack shell inside and outside wall.
Concrete, described weather shield is that the distance concrete surface height arranged along steel cylinder stack shell is 500mm, chooses the stainless steel corrugated tile that width is 800 ~ 1000mm outward, chooses outward to descending slope >=10%.
Concrete, the downward from the inside to the outside gradient of described aproll is 5%.
Concrete, described two in line open drains are symmetrical arranged with the line of demarcation, center in annular open drain; Line of demarcation, Nei Yiqi center, described annular open drain is starting point, be that terminal looks for slope by constructional materials with the joint in line open drain, be 2% to descending slope; Slope is looked for by constructional materials from the inside to the outside in described in line open drain, and the downward gradient is 2%.
Concrete, described annular open drain is 700mm apart from the distance of steel cylinder outer wall.
Concrete, described ointment moisture barrier coatings is in the upper and lower 100mm region of steel cylinder outer wall and concrete surface contact surface.
Beneficial effect of the present invention is embodied in: can be discharged from blower foundation by rainwater in time, avoid the erosion that rainwater causes blower foundation concrete; And construction is simple, cost is low, applicability is wide.
Accompanying drawing explanation
Fig. 1 is the plan view of the embodiment of the present invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the region 1. node enlarged drawing of Fig. 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
See Fig. 1 to Fig. 3, in the present embodiment, blower foundation is the steel cylinder 2 be embedded in place concrete 1.In the position of the surperficial 500mm height of blower fan steel cylinder 2 outer span concrete 1, one circle weather shield 3 is set along steel cylinder 2 stack shell, is connected with blower fan steel cylinder 2 by the mode of fillet weld.Weather shield 3 chooses the stainless steel corrugated tile that width is 800 ~ 1000mm outside being, chooses outward to descending slope >=10%, to ensure that blower fan steel cylinder 2 is moistened by rain with the contact interface of concrete 1 is unlikely.Ground apart from steel cylinder 2 outer wall 700mm distance arranges an annular open drain 4 around steel cylinder, as can be seen from Fig. 1, in line open drain 5 and in line open drain 6 is arranged with the line of demarcation, center 11 in annular open drain 4, annular open drain 4 and in line open drain 5 and in line open drain 6 UNICOM, in annular open drain 4 with line of demarcation 11 be starting point, with the joint in line open drain for terminal looks for slope by material, be 2% to descending slope, rainwater to be led in line open drain.Collecting well 7 and collecting well 8 are set respectively in line open drain 5 and in line open drain 6 end by rainwater-collecting; Collecting well is arranged away from blower foundation as far as possible.Slope is also looked for by material from the inside to the outside in line open drain, and the downward gradient is 2%, finds time in time after rainwater being imported collecting well, also under rainwater directly drains into mountain by base area potential condition in time, can collect, forming waterlogging to prevent heavy rain without the need to arranging collecting well.The sectional dimension in annular open drain and in line open drain should be determined according to local rainfall and snowfall.The size of collecting well and the degree of depth also should be determined according to local rainfall and snowfall.Ground between annular open drain 4 to steel cylinder 2 looks for domatic to become aproll 9 by constructional materialss such as mortars, and the downward from the inside to the outside gradient of aproll is 5%, so that rainwater flows to annular open drain 4, and is unlikely to pile up on steel cylinder 2 with the interface of concrete 1.Consider that southern area humidity is comparatively large, in the upper and lower 100mm region in steel cylinder 2 outer wall and concrete 1 surface contact face, arrange ointment moisture barrier coatings 10 to steel cylinder 2 stack shell inside and outside wall, this ointment moisture barrier coatings 10 should ensure certain thickness.Ointment moisture barrier coatings 10 is not only waterproof and dampproof, simultaneously also by the viscosity of ointment, reduces blower fan and waves concrete impact.
In addition, should regularly (particularly after heavy rain) arrangement personnel check drainage system of the present invention and steel cylinder and concrete interface, timely removing deposit and ponding, to ensure that drainage system normally works and steel cylinder and the drying of concrete contact surface, invade without obvious rainwater.
More than describing is only a kind of embodiment of the present invention, a typical example.The scope of the present patent application request protection has more than and is limited to the program.Every scheme according to arranging described in this example, designed by water-proof mechanism all belongs to protection scope of the present invention.
Claims (6)
1. a land blower foundation drainage system, blower foundation is be embedded in the steel cylinder in the concrete of place; It is characterized in that: in the position of the outer span concrete surface certain altitude of steel cylinder, one circle weather shield is set along steel cylinder stack shell, ground apart from steel cylinder outer wall certain distance arranges an annular open drain around steel cylinder, this annular open drain and two in line open drain UNICOMs, arrange collecting well respectively two in line open drain ends or will definitely directly discharge by rainwater according to ground; Ground between annular open drain to steel cylinder look for domatic to become aproll by mortar constructional materials; In the upper and lower certain area of steel cylinder outer wall and concrete surface contact surface, ointment moisture barrier coatings is arranged to steel cylinder stack shell inside and outside wall.
2. land blower foundation drainage system according to claim 1, it is characterized in that: described weather shield is that the distance concrete surface height arranged along steel cylinder stack shell is 500mm, chooses the stainless steel corrugated tile that width is 800 ~ 1000mm outward, chooses outward to descending slope >=10%.
3. land blower foundation drainage system according to claim 1, is characterized in that: the downward from the inside to the outside gradient of described aproll is 5%.
4. land blower foundation drainage system according to claim 1, is characterized in that: described two in line open drains are symmetrical arranged with the line of demarcation, center in annular open drain; Line of demarcation, Nei Yiqi center, described annular open drain is starting point, be that terminal looks for slope by constructional materials with the joint in line open drain, be 2% to descending slope; Slope is looked for by constructional materials from the inside to the outside in described in line open drain, and the downward gradient is 2%.
5. land blower foundation drainage system according to claim 1, is characterized in that: described annular open drain is 700mm apart from the distance of steel cylinder outer wall.
6. land blower foundation drainage system according to claim 1, is characterized in that: described ointment moisture barrier coatings is in the upper and lower 100mm region of steel cylinder outer wall and concrete surface contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510217739.2A CN104912096A (en) | 2015-04-30 | 2015-04-30 | Land wind turbine foundation drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510217739.2A CN104912096A (en) | 2015-04-30 | 2015-04-30 | Land wind turbine foundation drainage system |
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| CN104912096A true CN104912096A (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510217739.2A Pending CN104912096A (en) | 2015-04-30 | 2015-04-30 | Land wind turbine foundation drainage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193092A (en) * | 2016-08-17 | 2016-12-07 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of blower fan discharge structure and water discharge method thereof and manufacture method |
| CN110318415A (en) * | 2019-07-22 | 2019-10-11 | 中国一冶集团有限公司 | Tower crane pre-embedded bolt anti-soaking method |
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| CN101245604A (en) * | 2007-02-12 | 2008-08-20 | 上海电气风电设备有限公司 | Draught fan tower barrel base sealing technology |
| CN101476352A (en) * | 2008-12-24 | 2009-07-08 | 华锐风电科技有限公司 | Isolation and sealing technique for pre-embedded foundation ring of wind generator set |
| CN102966115A (en) * | 2012-12-18 | 2013-03-13 | 湘电风能有限公司 | Foundation of wind-driven generator unit |
| CN203420290U (en) * | 2013-08-08 | 2014-02-05 | 上海电力设计院有限公司 | Horizontal-direction waterproof system for connection position between draught fan foundation ring and reinforced concrete foundation |
| CN103590417A (en) * | 2012-08-13 | 2014-02-19 | 上海勘测设计研究院 | Fan base built in rock foundation |
| JP2015038267A (en) * | 2012-08-28 | 2015-02-26 | 株式会社 ゴウ構造 | Method for constructing support foundation of photovoltaic power generation panel receiver |
-
2015
- 2015-04-30 CN CN201510217739.2A patent/CN104912096A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245604A (en) * | 2007-02-12 | 2008-08-20 | 上海电气风电设备有限公司 | Draught fan tower barrel base sealing technology |
| CN101476352A (en) * | 2008-12-24 | 2009-07-08 | 华锐风电科技有限公司 | Isolation and sealing technique for pre-embedded foundation ring of wind generator set |
| CN103590417A (en) * | 2012-08-13 | 2014-02-19 | 上海勘测设计研究院 | Fan base built in rock foundation |
| JP2015038267A (en) * | 2012-08-28 | 2015-02-26 | 株式会社 ゴウ構造 | Method for constructing support foundation of photovoltaic power generation panel receiver |
| CN102966115A (en) * | 2012-12-18 | 2013-03-13 | 湘电风能有限公司 | Foundation of wind-driven generator unit |
| CN203420290U (en) * | 2013-08-08 | 2014-02-05 | 上海电力设计院有限公司 | Horizontal-direction waterproof system for connection position between draught fan foundation ring and reinforced concrete foundation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193092A (en) * | 2016-08-17 | 2016-12-07 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of blower fan discharge structure and water discharge method thereof and manufacture method |
| CN110318415A (en) * | 2019-07-22 | 2019-10-11 | 中国一冶集团有限公司 | Tower crane pre-embedded bolt anti-soaking method |
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Application publication date: 20150916 |
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