CN211714004U - Fan reinforcing ring - Google Patents
Fan reinforcing ring Download PDFInfo
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- CN211714004U CN211714004U CN201921604132.XU CN201921604132U CN211714004U CN 211714004 U CN211714004 U CN 211714004U CN 201921604132 U CN201921604132 U CN 201921604132U CN 211714004 U CN211714004 U CN 211714004U
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- grouting
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Abstract
The utility model relates to a fan reinforcing ring, its characterized in that: the grouting device comprises a hollow annular body, wherein the hollow annular body is formed by sequentially connecting a plurality of arc segments end to end through flanges, a flow channel which is communicated along the extending direction of the arc segments is arranged in the center of each arc segment, and each arc segment is sequentially connected to form an annular grouting cavity; the hollow annular body is provided with at least one grouting pipe communicated with the annular grouting cavity and at least one grout return pipe communicated with the annular grouting cavity. The utility model has the advantages that: a reinforced concrete layer is heightened above an original wind power concrete foundation, a fan reinforcing ring is arranged in the heightened reinforced concrete layer, the whole fan reinforcing ring is expanded to realize prestress tension through high-pressure grouting in an annular grouting cavity, a prestressed concrete reinforcing layer is obtained, and the structural reinforcement of the concrete foundation is realized.
Description
Technical Field
The utility model relates to a wind-powered electricity generation basis reinforced structure, in particular to fan reinforcing ring.
Background
Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. With the development of global economy, the wind energy market is also rapidly developing. The wind energy reserve of China is very large and wide in distribution, and the land-only wind energy reserve is about 2.53 hundred million kilowatts. In recent years, the wind power industry of China is rapidly developed, and the land wind turbine infrastructure needs to be vigorous.
The foundation ring type and foundation anchor bolt type wind turbine foundation introduced from abroad is widely applied to onshore wind power industry, the foundation ring or foundation anchor bolt is fixed on the ground through a concrete foundation, and a tower cylinder of a wind turbine power generation system is fixedly connected with upper flanges of the foundation ring and the foundation anchor bolt. Under the action of bearing long-term reciprocating fan load, the bottom flanges of the foundation ring and the foundation anchor bolt and the peripheral concrete generate relative dislocation to cause cracks to be generated and continuously enlarged, the water stop of the fan foundation fails to cause water infiltration, under the influence of continuous vibration and swinging of the foundation ring, the concrete is continuously ground and is fused with the infiltrated water to be extruded out of the cracks, the local concrete at the bottom flange of the foundation ring is hollowed to form a cavity, and finally severe shaking of the fan tower barrel is caused; due to the influence of various factors such as cracks, cavities or working environments, construction quality and the like, the strength of the original concrete foundation cannot meet the design requirements, and the safe and stable operation of the wind turbine generator is seriously threatened.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can carry out the fan reinforcing ring that the structure is strengthened to wind-powered electricity generation concrete foundation.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a fan reinforcing ring which innovation point lies in: the grouting device comprises a hollow annular body, wherein the hollow annular body is formed by sequentially connecting a plurality of arc segments end to end through flanges, a flow channel which is communicated along the extending direction of the arc segments is arranged in the center of each arc segment, and each arc segment is sequentially connected to form an annular grouting cavity; the cross section of the annular grouting cavity is formed by connecting a pair of symmetrically arranged transition sections between an upper arc section and a lower arc section; the hollow annular body is provided with at least one grouting pipe communicated with the annular grouting cavity and at least one grout return pipe communicated with the annular grouting cavity.
Further, the innovation points are as follows: the cross section of the annular grouting cavity is formed by connecting a pair of vertical transition sections between an upper semicircle and a lower semicircle which are arranged up and down.
Further, the innovation points are as follows: the cross section of the annular grouting cavity is formed by connecting a pair of inclined transition sections which are inclined and symmetrically arranged between an upper arc section and a lower arc section which are arranged from top to bottom, and the arc radius of the upper arc section is larger than that of the lower arc section.
Further, the innovation points are as follows: the arc radius of the upper arc section is 1.1-1.8 times of that of the lower arc section.
Further, the innovation points are as follows: the grouting pipe and the slurry return pipe are positioned at the upper end of the outer surface of the hollow annular body.
Further, the innovation points are as follows: and a feeding one-way valve is arranged on the grouting pipe, and a stop valve is arranged on the slurry return pipe.
The utility model has the advantages that: a post-cast reinforced concrete layer is arranged above an original wind power concrete foundation, a fan reinforcing ring is arranged in the heightened reinforced concrete layer, after the post-cast concrete reaches the design strength, the whole fan reinforcing ring is expanded through high-pressure grouting in an annular grouting cavity to realize prestress tension, and the structure of the concrete foundation is reinforced.
The cross section of the annular grouting cavity is formed by connecting a pair of transition sections between the upper semicircle and the lower semicircle, so that the fan reinforcing ring not only has better bearing capacity, but also can realize expansion tensioning more smoothly. And hollow annular body passes through flange joint by a plurality of arc segmentation and constitutes, can be in the wind-powered electricity generation basis reinforcement process of being convenient for can assemble more fast at foundation ring, basis crab-bolt form foundation job site, improves the efficiency of construction, and the transportation is convenient.
Drawings
Figure 1 is the utility model discloses fan reinforcing ring top view.
Fig. 2 is the schematic diagram of the arc-shaped sectional structure of the present invention.
Figure 3 is the utility model discloses slip casting pipe department cross section schematic diagram of a structure in fan reinforcing ring.
Figure 4 is the utility model discloses slip casting pipe department cross section schematic diagram of another kind of structure in fan reinforced ring.
Detailed Description
The utility model discloses well fan reinforcing ring is as shown in fig. 1, 2, including a hollow annular body, this hollow annular body is connected gradually by a plurality of arc segmentation 51 through flange 52 end to end and is constituteed, and each arc segmentation 51 center has along the runner 53 that its self extending direction link up, and each arc segmentation 51 forms an annular slip casting cavity after connecting gradually. At least one grouting pipe 4 communicated with the annular grouting cavity and at least one grout return pipe 55 communicated with the annular grouting cavity are welded on the whole hollow annular body. Generally, a grouting pipe 54 and a slurry return pipe 55 are located at the upper end of the outer surface of the hollow annular body, a feeding check valve is installed on the grouting pipe 54, and a stop valve is installed on the slurry return pipe 55. In addition, the grouting pipe and the slurry return pipe are arranged in a staggered mode in the circumferential direction of the annular grouting cavity.
The utility model discloses in, the cross section of annular slip casting cavity is by last segmental arc, the changeover portion that connects a pair of symmetry setting between the segmental arc down constitutes, it is concrete, as shown in FIG. 3, it comprises being connected a pair of perpendicular changeover portion 513 between the last semicircle 511 that sets up from top to bottom and the semicircle 512 down, thus, be favorable to adopting a circular tubular metal resonator to cut the last that forms the cross section, semicircle down, the perpendicular arc steel sheet that sets up of welding forms again between tip between the two, circular tubular metal resonator usually adopts the steel pipe preparation, and the arc steel sheet then cuts through cylindrical steel sheet and obtains, simple manufacturing process, the control quality of being convenient for more importantly.
Of course, the cross section of the annular grouting cavity is only exemplary, for example, as shown in fig. 4, the cross section of the annular grouting cavity is formed by connecting a pair of inclined transition sections which are arranged obliquely and symmetrically between an upper circular arc section and a lower circular arc section which are arranged up and down, and the circular arc radius of the upper circular arc section is larger than that of the lower circular arc section. Preferably, the arc radius of the upper arc section is 1.1-1.8 times of that of the lower arc section.
The working principle is as follows:
the method comprises the steps of heightening a reinforced concrete layer above an original wind power concrete foundation with strength which cannot meet requirements, placing a fan reinforcing ring in the heightened reinforced concrete layer in advance, enabling a grouting pipe and a grout return pipe of the fan reinforcing ring to extend out of the heightened reinforced concrete, after newly-added reinforced concrete is solidified to meet the design requirements of a scheme, performing high-pressure grouting in an annular grouting cavity through matching of the grouting pipe and the grout return pipe, maintaining pressure, enabling the whole hollow annular body to expand to achieve prestress tension, obtaining a prestress concrete reinforcing layer, and achieving structural reinforcement of the concrete foundation.
Claims (6)
1. The utility model provides a fan reinforcing ring which characterized in that: the grouting device comprises a hollow annular body, wherein the hollow annular body is formed by sequentially connecting a plurality of arc segments end to end through flanges, a flow channel which is communicated along the extending direction of the arc segments is arranged in the center of each arc segment, and each arc segment is sequentially connected to form an annular grouting cavity; the cross section of the annular grouting cavity is formed by connecting a pair of symmetrically arranged transition sections between an upper arc section and a lower arc section; the hollow annular body is provided with at least one grouting pipe communicated with the annular grouting cavity and at least one grout return pipe communicated with the annular grouting cavity.
2. The fan strengthening ring of claim 1, wherein: the cross section of the annular grouting cavity is formed by connecting a pair of vertical transition sections between an upper semicircle and a lower semicircle which are arranged up and down.
3. The fan strengthening ring of claim 1, wherein: the cross section of the annular grouting cavity is formed by connecting a pair of inclined transition sections which are inclined and symmetrically arranged between an upper arc section and a lower arc section which are arranged from top to bottom, and the arc radius of the upper arc section is larger than that of the lower arc section.
4. The fan strengthening ring of claim 3, wherein: the arc radius of the upper arc section is 1.1-1.8 times of that of the lower arc section.
5. The blower reinforcing ring according to any one of claims 1 to 4, wherein: the grouting pipe and the slurry return pipe are positioned at the upper end of the outer surface of the hollow annular body.
6. The fan strengthening ring of claim 5, wherein: and a feeding one-way valve is arranged on the grouting pipe, and a stop valve is arranged on the slurry return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604132.XU CN211714004U (en) | 2019-09-25 | 2019-09-25 | Fan reinforcing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604132.XU CN211714004U (en) | 2019-09-25 | 2019-09-25 | Fan reinforcing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211714004U true CN211714004U (en) | 2020-10-20 |
Family
ID=72812616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921604132.XU Active CN211714004U (en) | 2019-09-25 | 2019-09-25 | Fan reinforcing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211714004U (en) |
-
2019
- 2019-09-25 CN CN201921604132.XU patent/CN211714004U/en active Active
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