CN111779636A - Method for improving waterproof performance of foundation of wind generating set - Google Patents
Method for improving waterproof performance of foundation of wind generating set Download PDFInfo
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- CN111779636A CN111779636A CN202010668508.4A CN202010668508A CN111779636A CN 111779636 A CN111779636 A CN 111779636A CN 202010668508 A CN202010668508 A CN 202010668508A CN 111779636 A CN111779636 A CN 111779636A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/57—Seals
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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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- 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
- Y02E10/728—Onshore wind turbines
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Abstract
The invention relates to a method for improving the basic waterproof performance of a wind generating set, which comprises the following steps: be equipped with waterproof construction in the periphery of foundation ring, the last tight setting device that is equipped with of waterproof construction compresses tightly, seals through tight setting device and fixes waterproof construction on the outer peripheral face of foundation ring to avoid waterproof construction to slide down and destroy waterproof performance under the action of gravity, ensured waterproof performance between waterproof construction and the foundation ring. Meanwhile, the waterproof structure is arranged in the annular groove on the surface of the foundation bearing platform, and the sealing material is used for filling the gap between the waterproof structure and the foundation bearing platform, so that rainwater is further prevented from invading into the gap between the foundation ring and the foundation bearing platform along the surface of the foundation bearing platform, and the waterproof performance of the foundation of the wind generating set can be greatly improved.
Description
Technical Field
The invention belongs to the technical field of new energy power generation construction, and particularly relates to a method for improving the basic waterproof performance of a wind generating set.
Background
Wind power generation is an important component of national new energy construction, and an onshore wind farm is one of the main forms of wind power generation. At present, the mode of foundation ring is mostly adopted in being connected of high-power wind generating set tower section of thick bamboo and fan foundation, the foundation ring becomes an organic whole with reinforced concrete pouring, because wind generating set operation in-process, a tower section of thick bamboo is in the vibration state all the time, it is constantly torn to pour into the sealed glue of foundation ring outer wall and concrete, lose waterproof function, lead to the rainwater to get into concrete foundation stress zone, cross-section friction has been reduced, the concrete bearing capacity has been reduced, and take the concrete powder out of the basis, increase the space between basis and a tower section of thick bamboo, tower section of thick bamboo shaking amount with higher speed, and tower section of thick bamboo amplitude aggravation, lead to fan direct shut down when serious, lead to appearing fan tower section of thick bamboo toppling rupture even, simultaneously water will corrode basic ring perforation reinforcing bar, in case basic ring perforation reinforcing. The method includes the steps that waterproof treatment is conducted at the junction of the top of the fan foundation and a foundation ring, and green plants are planted on the upper portion of the fan foundation to reduce water and soil loss. And after the waterproof treatment fails, early warning cannot be timely carried out, so that serious consequences and loss expansion are caused.
Through patent retrieval, the following patents mainly exist, which have a certain relationship with the invention: the utility model is a utility model patent with the application number of 201520177830.1, the application date of 2015.03.27, the publication number of CN 204532717U, the publication number of 2015.08.05, the name of waterproof device for the gap between the outer wall of the foundation ring of the wind generating set and the concrete and the name of the applicant of the 'artificial river', the utility model discloses a concrete foundation, a waterproof device and a foundation ring, wherein the waterproof device comprises a fixed plate, a water guide plate A, a water guide plate B, a water baffle plate, a filler and a sealing material, the water baffle plate is arranged at the top of the concrete foundation, the sealing material is arranged between the water baffle plate and the concrete foundation, the water baffle plate is fixed with the concrete foundation through bolts, the water baffle plate is positioned at the outer edge of the gap between the outer wall of the foundation ring and the concrete, two semicircular fixed plates are sleeved outside the foundation ring and fixed through fixing buckles, all rain and snow carried by wind are blocked by the flexible irregular packing filled between the water guide plate and the water baffle plate.
In the above patent, two semicircular fixing plates are fixed by a fixing buckle, and a sealing material is filled between the base ring and the water guide plate. Because the water guide plate is not rigidly connected with the foundation ring but fixed on the foundation ring by using flexible sealing materials, the sealing materials between the water baffle plate and the foundation ring can be torn off as the water guide plate slides downwards under the action of gravity of the water guide plate; meanwhile, the foundation ring can be shaken by the wind generating set under the action of wind power, and the sealing material between the water baffle and the concrete foundation can be torn, so that the waterproof performance of the waterproof device is damaged, and rainwater flows into a gap between the foundation ring and the concrete foundation along the outer surface of the foundation ring through the torn sealing material between the water baffle and the concrete foundation; the waterproofing performance of the waterproofing device in this patent is also unreliable.
In addition, the water baffle in the patent adopts expansion bolts to press on the top surface of the concrete foundation 3, when the expansion bolt mounting holes are drilled, cracks can be caused on the top surface of the concrete foundation 3, and the water retaining performance of the water baffle 7 can be damaged, so that rainwater enters a gap between the foundation ring and the concrete foundation along the cracks on the top surface of the concrete foundation 3.
Disclosure of Invention
The invention aims to solve the technical problem of water leakage caused by downward sliding of the existing waterproof structure under the action of gravity, and provides a method for improving the basic waterproof performance of a wind generating set.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the method for improving the foundation waterproof performance of the wind generating set is characterized in that a waterproof structure is arranged on the periphery of a foundation ring, a fastening device is arranged on the waterproof structure, and the waterproof structure is tightly pressed and hermetically fixed on the outer peripheral surface of the foundation ring through the fastening device so as to avoid the waterproof structure from sliding downwards under the action of gravity to damage the waterproof performance.
Further, waterproof construction is split type structure, includes: the water guide plate is tightly pressed on the peripheral surface of the foundation ring by using a fastening device, so that the water guide plate is fixed on the peripheral surface of the foundation ring; the water guide plate covers the upper part of the water baffle plate, and rainwater is guided to one side of the water baffle plate, which is far away from the foundation ring, by the water guide plate. To prevent the water guide plate from sliding downwards to damage the sealing performance between the base ring and the water guide plate
Further, the water deflector is annular, includes: the inner vertical plate, the horizontal plate and the outer vertical plate; the horizontal plate is annular, and the inner vertical plate is cylindrical and annular and is vertically connected to the upper side of the annular inner ring of the horizontal plate; the outer vertical plate is cylindrical and annular and is vertically connected to the lower side of the annular outer ring of the horizontal plate; the tightening device includes: the fastening screw can be screwed in the fastening screw thread towards the peripheral direction of the foundation ring and is pressed on the peripheral surface of the foundation ring; and a first sealing material is filled in a gap between the inner vertical plate and the base ring.
Furthermore, a plurality of set screws are arranged at intervals in the radial direction of the inner vertical plate, and two set screws are arranged at intervals in the axial direction of the inner vertical plate. The water guide plate is pressed on the peripheral surface of the foundation ring in the radial direction and the axial direction, and the water guide plate is firmly fixed on the peripheral surface of the foundation ring.
Furthermore, the water baffle is in a cylindrical annular shape, an annular groove is formed in the surface of the foundation bearing platform, the water baffle is vertically arranged in the annular groove, and a sealing material III is filled in the annular groove to ensure the waterproof performance between the water baffle and the foundation bearing platform.
Furthermore, the outer vertical plate is positioned on one side, away from the base ring, of the water baffle, and a second sealing material is arranged between the outer vertical plate and the water baffle to prevent rain and snow from being blown between the water baffle and the base ring.
Further, waterproof construction formula structure as an organic whole includes: the L-shaped rubber plate comprises a vertical side and a horizontal side, the vertical side is in sealing contact with the circumferential surface of the base ring, and the horizontal side is in sealing contact with the surface of the base bearing platform. Because the lower extreme and the surface contact of basic cushion cap of perpendicular side, can avoid waterproof construction to slide downwards under the action of gravity and destroy waterproof performance.
Further, the tightening device includes: the L-shaped rubber plate comprises a set screw, an annular fixing plate and an arc-shaped pressing plate, wherein the annular fixing plate is provided with a set thread matched with the set screw, the set screw can be screwed in the set thread towards the peripheral direction of the base ring, and the vertical side edge of the L-shaped rubber plate is pressed against the peripheral surface of the base ring by pressing the arc-shaped pressing plate; and a sealing material IV is filled in an annular gap between the base ring at the upper part of the vertical side edge and the annular fixing plate. Because set screw will be perpendicular the side top and press on the outer peripheral face of foundation ring, can avoid perpendicular side to slide on the outer peripheral face of foundation ring because of creep causes, further guaranteed waterproof construction's waterproof performance.
Furthermore, a plurality of set screws are arranged at intervals in the radial direction of the annular fixing plate, and two set screws are arranged at intervals in the axial direction of the annular fixing plate. The vertical side edges are pressed on the peripheral surface of the foundation ring in the radial direction and the axial direction, and the vertical side edges are firmly fixed on the peripheral surface of the foundation ring.
Furthermore, an annular groove is formed in the surface of the foundation bearing platform at the joint of the foundation ring and the foundation ring, the width of the annular groove is larger than that of the horizontal side edge, the horizontal side edge is arranged in the annular groove, and a sealing material V is arranged between the annular groove and the horizontal side edge to ensure the waterproof performance between the water baffle and the foundation bearing platform.
The invention has the beneficial effects that: because the waterproof structure is provided with the fastening device, the waterproof structure is compressed and fixed on the outer peripheral surface of the foundation ring through the fastening device, the waterproof structure can be prevented from sliding under the action of gravity, the waterproof performance between the waterproof structure and the foundation ring is ensured, and rainwater is prevented from invading into a gap between the foundation ring and the foundation bearing platform along the surface of the foundation ring. Simultaneously, the waterproof structure is arranged in the annular groove on the surface of the foundation bearing platform, and the sealing material is used for filling the gap between the waterproof structure and the foundation bearing platform, so that rainwater is further prevented from invading into the gap between the foundation ring and the foundation bearing platform along the surface of the foundation bearing platform.
Drawings
Figure 1 is a schematic view of a wind park,
FIG. 2 is a schematic sectional view of a wind turbine generator system A-A,
FIG. 3 is a partially enlarged view illustrating an embodiment B,
FIG. 4 is a partially enlarged view of the second embodiment B,
in the figure: 1-foundation ring, 2-foundation cushion cap, 3-ground, 11-first sealing material, 12-water guide plate, 121-inner vertical plate, 122-horizontal plate, 123-outer vertical plate, 13-water baffle, 14-deformed steel bar, 15-second sealing material, 16-third sealing material, 17-annular groove, 21-fourth sealing material, 22-arc pressing plate, 23-annular fixing plate, 24-L-shaped rubber plate, 241-vertical side, 242-horizontal side, 25-expansion bolt, 26-nut, 27-cushion plate, 28-fifth sealing material, 29-annular groove, 100-set screw, i-drainage gradient and F-gap.
Detailed Description
The invention is further described by the following specific embodiments in conjunction with the attached drawings:
as shown in fig. 1: a tower barrel for improving the wind generating set is arranged on a foundation ring 1, and the foundation ring 1 is arranged on a foundation bearing platform 2. Due to construction and expansion and contraction, a gap F exists at the joint of the foundation ring 1 and the foundation bearing platform 2. The tower section of thick bamboo is in the vibration state all the time under the effect of wind-force for there is gap F constantly to enlarge in foundation ring 1 and 2 junctions of basic cushion cap, leads to the rainwater to get into gap F, will corrode foundation ring 1's perforated steel bar, in case foundation ring 1's perforated steel bar is corroded, then there is the risk that wind generating set's tower section of thick bamboo topples. Therefore, waterproof structures are required to be arranged on the foundation ring 1 and the foundation platform 2 to prevent rainwater from entering the gap F.
The utility model with the application number of 201520177830.1 is to fix two semicircular fixing plates through fixing buckles, and a sealing material is filled between a foundation ring and a water guide plate. Because the water guide plate is not rigidly connected with the foundation ring but fixed on the foundation ring by using flexible sealing materials, the sealing materials between the water baffle plate and the foundation ring can be torn off as the water guide plate slides downwards under the action of gravity of the water guide plate; meanwhile, the wind generating set can cause the foundation ring to shake under the action of wind power and tear the sealing material between the water baffle and the concrete foundation, so that the waterproof performance of the waterproof device is damaged, and rainwater flows into a gap between the foundation ring and the concrete foundation along the outer surface of the foundation ring through the torn sealing material; the waterproofing performance of the waterproofing device in this patent is also unreliable.
The invention discloses a method for improving the basic waterproof performance of a wind generating set, which comprises the following steps: firstly, the foundation bearing platform 2 is arranged higher than the ground 3, and meanwhile, the surface of the foundation bearing platform 2 is provided with a drainage slope i facing away from the foundation ring 1, so that water is prevented from accumulating at the joint of the foundation ring 1 and the foundation bearing platform 2, and rainwater is prevented from invading into the gap F.
The waterproof structure of the present invention is shown in fig. 2 and 3: waterproof construction is split type structure, includes: a water deflector 12 and a splash guard 13. The water guide plate 12 is annular and is sleeved on the peripheral surface of the foundation ring 1, and the cross section of the water guide plate 12 is Z-shaped and comprises: an inner vertical plate 121, a horizontal plate 122 and an outer vertical plate 123; the horizontal plate 122 is annular, and the inner vertical plate 121 is cylindrical and annular and is vertically connected to the upper side of the annular inner ring of the horizontal plate 122; the outer vertical plate 123 is cylindrical and annular and is vertically connected to the lower side of the annular outer ring of the horizontal plate 122.
A fastening thread matching the fastening screw 100 is provided on the inner vertical plate 121, and the fastening screw 100 is screwed into the fastening thread, so that the fastening screw 100 can be screwed in the outer circumferential direction of the foundation ring 1 and pressed against the outer circumferential surface of the foundation ring 1. A plurality of set screws 100 are arranged at intervals in the radial direction of the inner vertical plate 121, so that the plurality of set screws 100 in the radial direction of the water guide plate 12 are all pressed on the outer peripheral surface of the base ring 1, and the gap between the water guide plate 12 and the outer peripheral surface of the base ring 1 can be adjusted by adjusting the screwing length of the set screws 100, so that the gap between the water guide plate 12 and the outer peripheral surface of the base ring 1 is uniform. Meanwhile, two set screws 100 are provided at intervals in the axial direction of the inner vertical plate 121 so as to adjust the gap between the water guide plate 12 and the outer circumferential surface of the foundation ring 1 in the axial direction. The gap between the inner vertical plate 121 and the base ring 1 is filled with a sealing material 11 to ensure the sealing between the inner vertical plate 121 and the base ring 1.
The water deflector 12 is made of 63 × 63 × 5 angle steel and 60 × 5 flat steel, the 63 × 63 × 5 angle steel is rolled into a circular ring shape, and the edge of the angle steel along the axial direction of the circular ring shape is located at the position of the circular ring-shaped inner ring to form an inner vertical plate 121; the other side is in the radial direction of the circular ring to form a horizontal plate 122. Then, the 60 × 5 flat steel is rolled into a cylindrical ring shape, and the outer ring position of the ring shape rolled by angle steel and the side opposite to the inner upright plate 121 are connected by full-welding to form an outer upright plate 123.
The water baffle 13 is in a cylindrical annular shape, an annular groove 17 is formed in the surface of the foundation bearing platform 2, and the deformed steel bars 14 are vertically arranged in the annular groove 17 at intervals. The water baffle 13 is formed by rolling a stainless steel plate into a cylinder shape and welding, then the cylinder-shaped water baffle 13 is vertically arranged in the annular groove 17, and the annular groove 17 is filled with a third sealing material 16 to ensure the waterproof performance between the water baffle 13 and the foundation bearing platform 2.
The distance between the annular groove 17 and the outer peripheral surface of the foundation ring 1 is 45 mm, the width of the annular groove 17 is 20 mm, the depth of the annular groove 17 is determined according to the surface structure of the foundation bearing platform 2, and if the surface of the foundation bearing platform 2 is not provided with a secondary plastering layer, the depth of the foundation bearing platform 2 is 20 mm. If the surface of the foundation bearing platform 2 is provided with the secondary plastering layer, the depth of the foundation bearing platform 2 reaches 20 mm below the surface of the primary pouring concrete. The grooving needs to be drilled by a water drill, the electric hammer is strictly forbidden to drill holes, and the damage to nearby concrete is avoided.
Drilling holes with the diameter of 20 mm and the depth of 100 mm in the annular groove 17 by using a water drill every 50 cm, removing ash to form the holes, implanting deformed steel bars 14 with the diameter of 12 mm and the length of 180 mm into the holes, wherein the deformed steel bars 14 are close to the inner side of the annular groove 17, injecting high-strength grouting material into the holes, and curing for 24 hours to use.
The water guide plate 12 covers the water baffle 13, the outer vertical plate 123 is located on one side of the water baffle 13 far away from the base ring 1, and a gap between the outer vertical plate 123 and the water baffle 13 is filled with a second sealing material 15, so that rain and snow are prevented from being blown into the water baffle 13 by wind. The second sealing material 15 is made of flexible sealing material so as to adapt to the swinging of the foundation ring 1 relative to the foundation bearing platform 2.
When the rainwater drainage device is used, rainwater flows to the outer peripheral surface of the base ring 1 along the tower barrel, and due to the blocking of the sealing material I11, the rainwater flows to the upper surface of the horizontal plate 122 along the outer peripheral surface of the inner vertical plate 121, then flows to the surface of the base bearing platform 2 on one side, away from the base ring 1, of the water baffle 13 along the outer peripheral surface of the outer vertical plate 123, and finally flows to the ground 3 along the drainage gradient i on the surface of the base bearing platform 2.
Because the fastening screw 100 is adopted to compress the water guide plate 12 on the outer peripheral surface of the foundation ring 1 in the radial direction and the axial direction, the water guide plate 12 cannot slide downwards, the sealing material 11 between the inner vertical plate 121 and the foundation ring 1 can be prevented from being torn, the waterproof performance between the water guide plate 12 and the water guide plate 12 is ensured, and the waterproof performance of the foundation of the wind generating set is improved.
The water deflector 12 of the first embodiment is manufactured as follows:
step one, manufacturing the water baffle 13:
a1, opening an annular groove 17 with the width of 20 mm at a position 45 mm away from the outer wall of the foundation ring 1, wherein the depth of the annular groove 17 is determined according to the surface structure of the foundation bearing platform 2, and if the surface of the foundation bearing platform 2 is not provided with a secondary plastering layer, the depth of the annular groove 17 is 20 mm; if the surface of the foundation bearing platform 2 is provided with a secondary plastering layer, the depth of the annular groove 17 is 20 mm below the surface of the primary pouring concrete. The grooving needs to be drilled by a water drill, the electric hammer is strictly forbidden to drill holes, and the damage to nearby concrete is avoided.
A2, drilling holes with the diameter of 20 mm and the depth of 100 mm by a water drill every 50 cm in the prepared annular groove 17, and removing ash to form holes.
A3, implanting deformed steel bars 14 with the diameter of 12 mm and the length of 180 mm into the holes, wherein the deformed steel bars 14 are close to the inner sides of the annular grooves 17, injecting high-strength grouting material into the holes, and curing for 24 hours before using.
A4, rolling a stainless steel plate strip with the height of 80-100 mm (according to the depth of the groove) into a cylindrical ring shape, placing the stainless steel plate strip outside the deformed steel 14 in the annular groove 17 to be used as a water baffle 13, leveling and fixing the stainless steel plate strip by using a level, and welding the stainless steel plate strip and the deformed steel 14 together by using a carbon dioxide protection welding machine.
A5, blowing the dust in the annular groove 17 with compressed air, and sealing the annular groove 17 with high-strength building structure glue.
A6, carrying out anticorrosion treatment on the deformed steel 14 exposed outside and the weld crater part by using iron oxide red anticorrosion primer for curing the structural adhesive.
A7, performing a water leakage test, filling water into the water baffle 13, and testing the waterproof sealing performance between the water baffle 13 and the foundation bearing platform.
Step two, manufacturing the water guide plate 12:
b1, drilling holes with the diameter of 10mm at intervals of 50 cm on one side of the angle steel of 63X 5, and drilling 2 holes up and down at each position, wherein the hole spacing is 39 mm.
And B2, rolling the drilled angle steel into an arc, wherein the edge of the drilled angle steel is a vertical edge, and the diameter of the arc is 20 mm larger than the outer peripheral surface of the foundation ring 1.
B3, placing the circular arcs coiled by the angle steel on the outer side of the foundation ring 1, welding the circular arcs together by a welding machine to form a complete L-shaped ring, and ensuring that the distance between the vertical edge of the ring with the hole and the outer wall of the foundation ring is 8-10 mm.
B4, after the L-shaped ring is welded and formed, a vertical plate of 63 multiplied by 5 is welded on the outer side of the bottom edge of the L-shaped ring, and the welding requirement is full welding to prevent water infiltration.
B5, painting the welded water guide plate 12 with white anticorrosive paint.
B6, after the paint is completely dried, pressing the water guide plate 12 on the outer peripheral surface of the foundation ring 1 by using the set screw 100, wherein the distance between the water guide plate 12 and the outer peripheral surface of the foundation ring 1 is required to be 10 +/-2 mm.
And B7, adding a first sealing material 11 between the water guide plate 12 and the outer peripheral surface of the foundation ring 1 for bonding and sealing, wherein the first sealing material 11 is made of structural adhesive.
Step three, filling a second sealing material 15 between the water guide plate 12 and the water baffle plate 13, wherein the second sealing material 15 adopts a flexible filler; the second sealing material 15 is a foamed circular sealing strip with the diameter of 15 mm, is made of ethylene propylene diene monomer rubber, and is 2 circles in number.
The main construction materials in the first embodiment are as follows:
| serial number | Name of Material | Model number | Material of |
| 1 | Angle steel | 63×63×5 | 45# |
| 2 | Flat steel | 60×5 | 45# |
| 3 | Stainless steel plate | 80×2 | 304 |
| 4 | High-strength building structure adhesive | White quick-drying strength | Mesoscopic silicones |
| 5 | Foaming round |
15 mm | Ethylene propylene diene monomer |
| 6 | Finish paint | White colour | Acrylic polyurethane |
In the first embodiment, the fastening screw 100 installed on the water guide plate 12 is pressed against the outer peripheral surface of the foundation ring 1, so that the water guide plate 12 is ensured to be in close contact with the outer peripheral surface of the foundation ring 1 and to be in a rigid connection state, the water guide plate 12 is prevented from sliding downwards, and the sealing reliability between the water guide plate 12 and the foundation ring 1 is ensured.
The second embodiment of the waterproof structure of the present invention is shown in fig. 2 and 4: waterproof construction formula structure as an organic whole includes: an L-shaped rubber plate 24, an arc-shaped pressing plate 22, an annular fixing plate 23 and a set screw 100. The L-shaped rubber sheet 24 includes: a vertical side 241 for contact sealing with the outer peripheral surface of the foundation ring 1 and a horizontal side 242 for contact sealing with the upper surface of the foundation platform 2, and bolt holes for passing the expansion bolts 25 are provided in the horizontal side 242.
An annular groove 29 with the width of 75 mm and the depth of 20 mm is formed in the upper surface of the base platform 2, a hole with the diameter of 12 mm is drilled in the annular groove 29 according to the position of the hole in the horizontal side edge 242 of the L-shaped rubber plate 24, and a stainless steel expansion screw 25 is installed in the hole. Structural glue with the thickness of 3 mm is uniformly coated on the bottom of the annular groove 29 and the horizontal side edge 242 of the L-shaped rubber plate 24, the backing plate 27 is placed on the horizontal side edge 242, and the horizontal side edge 242 is pressed in the annular groove 29 through the stainless steel expansion screw 25. A seal material five 28 is disposed between the annular groove 29 and the horizontal side 242.
The annular fixing plate 23 is formed by rolling a strip-shaped steel plate into a cylinder shape and welding. The annular fixing plate 23 is provided with a fastening screw for attaching the set screw 100. A plurality of set screws 100 are provided at intervals in the radial direction of the annular fixing plate 23, and two set screws 100 are provided at intervals in the axial direction of the annular fixing plate 23. The set screw 100 is screwed into the fastening thread. Structural adhesive is coated on the outer peripheral surface of the foundation ring 1 and the position where the vertical side 241 of the L-shaped rubber plate 24 is tightly attached. The annular fixing plate 23 is sleeved on the outer side of the vertical side 241 of the L-shaped rubber plate 24, the arc-shaped pressing plate 22 is arranged between the vertical side 241 and the annular fixing plate 23, and the vertical side 241 is pressed against the outer peripheral surface of the foundation ring 1 by utilizing the set screw 100 arranged on the annular fixing plate 23 to press against the arc-shaped pressing plate 22. The annular gap between the base ring 1 and the annular fixing plate 23 at the upper part of the vertical side 241 is filled with a sealing material IV 21 to ensure the waterproof sealing between the vertical side 241 and the annular fixing plate 23.
The construction steps of the second embodiment are as follows:
c1, forming an annular groove 29 with the width of 75 mm and the depth of 20 mm on the upper surface of the foundation bearing platform 2, wherein the depth of the annular groove 29 is determined according to the surface structure of the foundation bearing platform 2, and if the surface of the foundation bearing platform 2 is not provided with a secondary plastering layer, the depth of the annular groove 29 is 20 mm. If the surface of the foundation bearing platform 2 is provided with a secondary plastering layer, the depth of the annular groove 29 reaches 20 mm below the surface of the primary pouring concrete. The bottom of the annular groove 29 is flat to avoid damaging the concrete adjacent to it when grooving.
C2, drilling a hole with a diameter of 12 mm in the annular groove 29 according to the position of the hole on the horizontal side 242 of the L-shaped rubber plate 24, and installing the stainless steel expansion screw 25 in the hole.
C3, uniformly coating structural adhesive with the thickness of 3 mm at the bottom of the annular groove 29, fully contacting the structural adhesive with concrete, ensuring that the space between the horizontal side edge 242 of the L-shaped rubber plate 24 and the concrete is filled with the structural adhesive, placing the backing plate 27 on the horizontal side edge 242 after coating the structural adhesive, and tightly pressing the horizontal side edge 242 in the annular groove 29 through the stainless steel expansion screw 25. A groove of 10mm width is reserved between the outer edge of the horizontal side 242 and the outer edge of the annular groove 29, and structural glue is injected into the groove until the groove is filled.
C4, coating structural adhesive on the outer peripheral surface of the foundation ring 1 and the vertical side edge 241 of the L-shaped rubber plate 24.
C5, drilling and tapping M8 fastening threads at intervals of 30 cm on a strip steel plate of 70 × 10mm (width × thickness), rolling the steel plate into a cylindrical shape having the same curvature as the outer peripheral surface of the base ring 1, and welding the same to form a cylindrical annular fixing plate 23.
C6, rolling a 40 × 6mm (width × thickness) steel plate into a pressing arc steel plate having the same radian as the outer peripheral surface of the base ring 1, cutting the steel plate into segments 60 cm long, and making into the arc pressing plate 22.
C7, placing a plurality of arc pressing plates 22 outside the vertical side 241 of the L-shaped rubber plate 24 to form an annular pressing plate, wherein the center of the annular pressing plate is consistent with the center of the vertical side 241.
And C8, placing the annular fixing plate 23 on the outer side of the arc-shaped pressing plate 22, adjusting the perimeter to meet the requirement of standard roundness, and tightly attaching the annular fixing plate 23, the arc-shaped pressing plate 22 and the vertical side edge 241 of the L-shaped rubber plate 24 to the outer peripheral surface of the foundation ring 1 by using a steel wire tensioner. The height of the upper edge of the annular fixing plate 23 is adjusted to be consistent with that of the vertical side 241 in the pressing process.
C9, screwing the M8 multiplied by 20 set screw 100 into the fastening screw thread on the annular fixing plate 23, pressing the annular arc pressing plate 22 again, pressing the vertical side 241 on the peripheral surface of the foundation ring 1, ensuring that the L-shaped rubber plate 24 is tightly contacted with the peripheral surface of the foundation ring 1 and is in a rigid state.
C10, injecting high-strength structural adhesive into the groove between the top of the annular fixing plate 23 and the outer peripheral surface of the foundation ring 1 to form a first waterproof layer.
And C11, brushing all the waterproof devices with white anticorrosive paint.
The main construction materials in the second embodiment are as follows:
in the second embodiment, the set screw 100 mounted on the annular fixing plate 23 presses the vertical side 241 against the outer peripheral surface of the foundation ring 1 through the arc-shaped pressing plate 22, so as to ensure that the L-shaped rubber plate 24 is in close contact with the outer peripheral surface of the foundation ring 1 and is in a rigid state. Meanwhile, the lower end of the vertical side 241 is supported against the upper surface of the foundation bearing platform 2, so that the L-shaped rubber plate 24 is prevented from sliding downwards, and the sealing reliability between the L-shaped rubber plate 24 and the foundation ring 1 is ensured.
In summary, the following steps: the invention has the beneficial effects that: because the waterproof structure is provided with the fastening device, the waterproof structure is compressed and fixed on the outer peripheral surface of the foundation ring through the fastening device, the waterproof structure can be prevented from sliding under the action of gravity, the waterproof performance between the waterproof structure and the foundation ring is ensured, and rainwater is prevented from invading into a gap between the foundation ring and the foundation bearing platform along the surface of the foundation ring. Simultaneously, the waterproof structure is arranged in the annular groove on the surface of the foundation bearing platform, and the sealing material is used for filling the gap between the waterproof structure and the foundation bearing platform, so that rainwater is further prevented from invading into the gap between the foundation ring and the foundation bearing platform along the surface of the foundation bearing platform.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. A method for improving the waterproof performance of a foundation of a wind generating set is characterized by comprising the following steps: the method is characterized in that a waterproof structure is arranged on the periphery of the foundation ring (1), a fastening device is arranged on the waterproof structure, and the waterproof structure is tightly pressed and hermetically fixed on the peripheral surface of the foundation ring (1) through the fastening device.
2. The method for improving the water resistance of the foundation of the wind generating set according to claim 1, wherein: waterproof construction is split type structure, includes: the water guide plate (12) is in sealing contact with the foundation ring (1) and the water baffle (13) is vertically arranged on the surface of the foundation bearing platform (2), and the water guide plate (12) is tightly pressed on the peripheral surface of the foundation ring (1) by using a fastening device, so that the water guide plate (12) is fixed on the peripheral surface of the foundation ring (1); the water guide plate (12) covers the upper part of the water baffle (13), and rainwater is guided to one side of the water baffle (13) far away from the foundation ring (1) by the water guide plate (12).
3. The method for improving the water resistance of the foundation of the wind generating set according to claim 2, wherein: the water guide plate (12) is annular and comprises: an inner vertical plate (121), a horizontal plate (122) and an outer vertical plate (123); the horizontal plate (122) is annular, the inner vertical plate (121) is cylindrical annular and is vertically connected to the upper side of the annular inner ring of the horizontal plate (122); the outer vertical plate (123) is cylindrical and annular and is vertically connected to the lower side of the annular outer ring of the horizontal plate (122); the tightening device includes: the fastening screw (100) can be screwed in the fastening thread towards the peripheral direction of the foundation ring (1) and is pressed on the peripheral surface of the foundation ring (1); and a first sealing material (11) is filled in a gap between the inner vertical plate (121) and the base ring (1).
4. The method for improving the water resistance of the foundation of the wind generating set according to claim 3, wherein the method comprises the following steps: a plurality of set screws (100) are arranged at intervals in the radial direction of the inner vertical plate (121), and two set screws (100) are arranged at intervals in the axial direction of the inner vertical plate (121).
5. The method for improving the waterproof performance of the foundation of the wind generating set according to claim 4, wherein the method comprises the following steps: the water baffle (13) is in a cylindrical annular shape, an annular groove (17) is formed in the surface of the foundation bearing platform (2), the water baffle (13) is vertically arranged in the annular groove (17), and a sealing material III (16) is filled in the annular groove (17).
6. The method for improving the water resistance of the foundation of the wind generating set according to claim 5, wherein the method comprises the following steps: the outer side vertical plate (123) is located on one side, away from the base ring (1), of the water baffle (13), and a second sealing material (15) is arranged between the outer side vertical plate (123) and the water baffle (13).
7. The method for improving the water resistance of the foundation of the wind generating set according to claim 1, wherein: waterproof construction formula structure as an organic whole includes: the L-shaped rubber plate (24) comprises a vertical side edge (241) and a horizontal side edge (242), the vertical side edge (241) is in sealing contact with the circumferential surface of the foundation ring (1), and the horizontal side edge (242) is in sealing contact with the surface of the foundation bearing platform (2).
8. The method for improving the water resistance of the foundation of the wind generating set according to claim 7, wherein the method comprises the following steps: the tightening device includes: the clamping device comprises a fastening screw (100), an annular fixing plate (23) and an arc-shaped pressing plate (22), wherein a fastening thread matched with the fastening screw (100) is arranged on the annular fixing plate (23), the fastening screw (100) can be screwed in the fastening thread towards the peripheral direction of the foundation ring (1), and the vertical side edge (241) of the L-shaped rubber plate (24) is pressed on the peripheral surface of the foundation ring (1) by pressing the arc-shaped pressing plate (22); a sealing material four (21) is filled in an annular gap between the base ring (1) and the annular fixing plate (23) at the upper part of the vertical side edge (241).
9. The method for improving the water resistance of the foundation of the wind generating set according to claim 8, wherein: a plurality of set screws (100) are arranged at intervals in the radial direction of the annular fixing plate (23), and two set screws (100) are arranged at intervals in the axial direction of the annular fixing plate (23).
10. The method for improving the water resistance of the foundation of the wind generating set according to claim 9, wherein: an annular groove (29) is formed in the surface of the foundation bearing platform (2) at the joint of the foundation ring (1), the width of the annular groove (29) is larger than that of the horizontal side edge (242), the horizontal side edge (242) is arranged in the annular groove (29), and a sealing material five (28) is arranged between the annular groove (29) and the horizontal side edge (242).
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