CN103147935A - Tower barrel of wind power generator unit and wind power generator unit - Google Patents

Abstract

The invention relates to a tower barrel of a wind power generator unit. The tower barrel comprises a tower barrel section and a tower barrel bottom reinforced concrete section, wherein the tower barrel section comprises one or more than one tower barrel assembly section, each tower barrel assembly section comprises a tower barrel upper assembly section, a tower barrel lower assembly section and at least one tower barrel middle assembly section, each tower barrel upper assembly section and each tower barrel lower assembly section are respectively arranged at the upper end and the lower end of each tower barrel assembly section, and the lower part of the tower barrel lower assembly section at the bottommost part of the tower barrel section is fixed together with the upper part of the tower barrel bottom reinforced concrete section. Since the sectional assembly method is adopted, the tower barrel is separated into the assembly sections of which the heights meet the transportation requirement during manufacturing, and then the assembly sections are assembled on site after being transported to a wind field, the difficult problem of land transportation of the tower barrel of a large wind power generator unit is solved. The invention also discloses the wind power generator unit.

Description

Tower of a wind power generating set and wind power generating set

technical field

The present invention relates to the field of wind power generation, and more specifically, to a tower of a wind power generating set and a wind generating set including the tower.

technical background

Worldwide, in order to maximize the use of limited wind energy resources, land resources and wind power markets, it is increasingly urgent for wind turbines to develop towards high-power and long blades. However, with the increase in the power of wind turbines, wind power generation The diameter of the unit tower is also getting larger and larger. The bottom diameter of the 5MW wind turbine tower in the industry is generally greater than 6m. When the tower is transported horizontally, due to the large diameter, it exceeds the height limit of many toll stations and viaducts. Land transportation has brought great difficulties. Therefore, many wind farms have to give up high-power wind turbine projects due to transportation problems.

Contents of the invention

The object of the present invention is to provide a conveniently transportable wind power generating set tower and a wind power generating set including the tower.

The technical solution of the present invention is: a wind power generator tower, which includes: a tower section and a reinforced concrete section at the bottom of the tower, the tower section includes one or more than one tower section, the tower section The section includes the upper assembly section of the tower tube, the lower assembly section of the tower tube and at least one middle assembly section of the tower tube. The lower part of the lower assembly section of the tower tube is fixed together with the upper part of the reinforced concrete section at the bottom of the tower tube.

Preferably, the upper assembly section of the tower, the lower assembly section of the tower, and the middle assembly section of the tower are all composed of a coaxial inner steel cylinder and an outer steel cylinder, and the high-strength pre-tightening screw passes through the upper assembly section of the tower, the tower Each tower tube section is connected and fixed together between the inner and outer steel tubes of the middle assembly section of the tower tube and the inner and outer steel tubes of the lower assembly section of the tower tube.

Preferably, the tower sections are connected by flanges, and the upper assembly section of the tower section is the same as the lower assembly section of the tower, wherein the uppermost assembly section of the tower must be the same as that of the lower assembly section. The way the cabin is connected matches and can be different.

Preferably, high-strength pre-tightening screws pass between the inner and outer steel cylinders of each tower section to fix the entire tower section together.

Preferably, concrete is filled between the inner and outer steel cylinders of the tower section, a screw pipe is arranged in the middle of the concrete, and a high-strength pre-tightening screw is arranged in the screw pipe.

In order to shorten the length of the high-strength preloaded screw, preferably, the high-strength screw has two or more sections, and the high-strength screws are connected together through a sleeve.

Preferably, steel plates are provided at the ends of the upper assembly section and the lower assembly section at the joint of the sleeve.

Preferably, the reinforced concrete section at the bottom of the tower further includes an anchor rod and an anchor plate, the upper part of the anchor rod is connected with the sleeve, and the lower part of the anchor rod is pre-embedded in concrete together with the anchor plate.

The present invention also provides a wind power generating set, which includes a tower, and the tower is specifically the above-mentioned tower.

The effect of the present invention is: due to the use of segmented assembly, the tower is disassembled into assembly sections whose height meets the transportation requirements during production, and then assembled on site after arriving at the wind farm, thereby solving the problem of land transportation of the tower of large wind power generating units .

Description of drawings

Fig. 1 structural representation of Embodiment 1 of the present invention;

Figure 2 is a partial enlarged view of A in Figure 1;

Fig. 3 is a partial enlarged view of B in Fig. 1;

Figure 4 is a partial enlarged view of C in Figure 1;

Fig. 5 is a schematic structural diagram of Embodiment 2 of the present invention;

Fig. 6 is a partial enlarged view of A place in Fig. 5;

Figure 7 is a partial enlarged view of the B place of Figure 5;

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1, with reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, it comprises tower tube section and tower tube bottom reinforced concrete section 4, and tower tube section comprises two tower tube group sections, and upper tower tube group The section includes the upper assembly section 1 of the tower, the lower assembly section 3 of the tower, and the middle assembly section 2 of the tower, the upper assembly section I of the lower tower section, the lower assembly section 3 of the tower and the middle assembly section 2 of the tower, Among them, the upper assembly section I is the same as the lower assembly section 3 of the tower tube, but it is symmetrically connected back to back during assembly. The upper assembly section 1 of the tower tube includes the outer steel tube I5 and the inner steel tube I6, and the middle assembly section of the tower tube 2 includes the outer steel tube II7, Inner steel cylinder II8, tower lower assembly section 3 includes outer steel cylinder III9, inner steel cylinder III10, in the upper tower section, high-strength pre-tightening screw I11 passes through outer steel cylinder I5, inner steel cylinder I6 and outer steel cylinder The upper tower assembly section 1, the tower middle assembly section 2 and the tower lower assembly section 3 are connected together between the cylinder II7, the inner steel cylinder II8, the outer steel cylinder III9, and the inner steel cylinder III10 to form the upper tower section, The upper assembly section 1 of the tower, the inner and outer steel cylinders of the middle assembly section 2 of the tower and the lower assembly section 3 of the tower are respectively filled with concrete. A screw pipe I12 is provided; similarly, in the lower tower section, the high-strength pre-tightening screw II13 passes between the inner steel cylinder and the outer steel cylinder to connect the lower tower section together, and each tower section Concrete is filled between the inner and outer steel cylinders. In order to protect the high-strength pre-tightened screw Ⅱ13, a screw pipe Ⅱ14 is arranged outside the high-strength pre-tightened screw Ⅱ13; there is a flange between the upper tower section and the lower tower section. Connection, the upper part of the reinforced concrete section 4 at the bottom of the tower is provided with an anchor rod 15 and an anchor plate 16, and the upper part of the anchor rod 15 is fixed with the flange of the lower assembly section 3 of the lower tower group section, and the anchor rod 15 The lower part is pre-embedded together with the anchor plate 16 in the reinforced concrete section 4 concrete at the bottom of the tower.

Embodiment 2, with reference to accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, it comprises tower tube section and tower tube bottom reinforced concrete section 4, and tower tube section comprises two tower tube group sections, and each tower tube group section all comprises The tower upper assembly section 1, the tower lower assembly section 3 and the two tower middle assembly sections 2, the tower upper assembly section 1, the middle assembly section 2 and the tower lower assembly section 3 have the same structure as the embodiment 1, high strength The pre-tightening screw Ⅲ17 passes through the inner steel cylinder and the outer steel cylinder to connect the upper tower assembly section 1, the two tower middle assembly sections 2 and the tower lower assembly section 3 to form the upper tower section and the upper tower In the barrel section, the high-strength pre-tightening screw IV18 also passes between the inner and outer steel barrels to connect the upper assembly section 1 of the tower, the middle assembly section 2 of the two towers, and the lower assembly section 3 of the tower. In the tower section, the sleeve 19 connects the upper parts of the high-strength preload screw Ⅲ17 and the high-strength preload screw Ⅳ18. In order to ensure the strength and reliability of the connection at the sleeve I19, the tower section of the upper tower section The end of the lower assembly section 3 is provided with a steel plate I20, and the end of the upper assembly section 1 of the lower tower section is provided with a steel plate II21. Considering that the upper tower section is to be connected with the fan nacelle, the upper tower section The end of the assembly section 1 on the tower tube of the group section is also provided with a steel plate II21; the lower part of the high-strength pre-tightened screw rod IV18 is also connected and fixed to the anchor rod 23 pre-buried on the upper part of the reinforced concrete section 4 at the bottom of the tower tube through the sleeve II22. Together.

The present invention is not limited to what is shown in the embodiments, as long as it conforms to the principle of the present invention, it is within the protection scope of the present invention.

Claims (10)

1. tower barrel of wind generating set, it comprises: tower cylinder section and tower cylinder bottom reinforcement bars concrete segment, its spy is, described tower cylinder section comprises one or more tower cylinder group section, described tower cylinder group section comprises assembles section and the middle assembling section of at least one tower cylinder under assembling section, tower cylinder on the tower cylinder, assemble the two ends up and down that section is located at respectively tower cylinder group section under assembling section and tower cylinder on the tower cylinder, under the tower cylinder of tower cylinder section bottommost, the bottom of assembling section and the top of tower cylinder bottom reinforcement bars concrete segment are fixed together.

2. a kind of tower barrel of wind generating set according to claim 1, it is characterized in that, on described tower cylinder under assembling section, tower cylinder in the middle of assembling section and tower cylinder the assembling section form by coaxial interior steel cylinder and outer steel cylinder, high strength pretension screw rod passes on the tower cylinder in the middle of assembling section, tower cylinder and between the inside and outside steel cylinder of assembling section, each tower cylinder group section is connected and fixed under assembling section and tower cylinder.

3. according to claim 1 or a kind of tower barrel of wind generating set claimed in claim 2, it is characterized in that, connect for flange between described tower cylinder group section, it is identical assembling section under assembling Duan Yuta cylinder on the tower cylinder of described tower cylinder group section, wherein, on the tower cylinder of top, the assembling section must be complementary with the Placement in cabin, can be different.

4. a kind of tower barrel of wind generating set according to claim 2, is characterized in that, described high strength pretension screw rod passes between the inside and outside steel cylinder of each tower cylinder group section, and whole tower cylinder section is fixed together.

5. according to according to claim 2 or a kind of tower barrel of wind generating set claimed in claim 4, it is characterized in that, be filled with concrete between the inside and outside steel cylinder of described tower cylinder section, the concrete middle part is provided with the screw rod pipeline, and high strength pretension screw rod is located in the screw rod pipeline.

6. a kind of tower barrel of wind generating set according to claim 3, is characterized in that, is filled with concrete between the inside and outside steel cylinder of described tower cylinder section, is provided with the screw rod pipeline in the middle part of concrete, and high strength pretension screw rod is located in the screw rod pipeline.

7. described a kind of tower barrel of wind generating set according to claim 5, is characterized in that, described high strength screw rod links together by sleeve between the high strength screw rod for for two or more.

8. described a kind of tower barrel of wind generating set according to claim 7, is characterized in that, the upper assembling section of described sleeve joint and a lower assembling section end are equipped with steel plate.

9. according to claim 1 or described a kind of tower barrel of wind generating set claimed in claim 7, it is characterized in that, described tower cylinder bottom reinforcement bars concrete segment also comprises anchor pole, anchor slab, and top and the sleeve of anchor pole link together, and the bottom of anchor pole is embedded in concrete together with anchor slab.

10. wind power generating set, it comprises the tower cylinder, it is characterized in that, described tower cylinder is specially tower cylinder described above.

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