Surrounding body, equipment and method for hoisting tower for suppressing vibration of enclosure structure
An envelope structure and tower technology, which is applied in the assembly of wind turbines, mechanical equipment, and the configuration of installation/support of wind turbines, can solve problems such as increased manufacturing costs and maintenance costs.
Active Publication Date: 2019-05-03
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology
[0031] In addition, the wind speed of the air flow will change. If the characteristic parameters (pitch, height) of the helix 10a (or spiral plate) are processed to change according to the change of the wind speed of the air flow, the corresponding manufacturing cost and maintenance cost will increase significantly.
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[0093] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0094] Please refer to Figure 4 , Figure 4 A structural schematic diagram of a specific embodiment of a tower surrounded by a surrounding body provided by the present invention; Figure 5-1 for Figure 4 top view of Figure 5-2 for Figure 4 Top view of the middle surround; Figure 5-3 for Figure 5-2 Partial enlarged schematic diagram of the middle part I; Figure 5-4 for Figure 4 Partial enlarged schematic diagram of the middle part II; Figure 5-5 for Figure 4 Schematic diagram of the swing of the mid-surrounding body as the upwind direction of the incoming wind changes.
[0095] Such as Figure 4 As shown, the tower 100 is installed on the foundation 300, and the tower 100 is formed by connecting five tow...
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The invention discloses a surrounding body and equipment for inhibiting vibration of an enclosure protection structure and a method for hoisting a tower drum. The surrounding body can surround the enclosure protection structure, faces the outer surface of the inner side of the enclosure protection structure and is provided with a plurality of elastomers which extrude the enclosure protection structure under the action of an upwind inflow, and during extrusion, an airflow scaling flow passage is formed among the elastomers; and an airflow in the scaling flow passage has the air blowing function to the upper enclosure protection structure boundary layer, so that the airflow, on the upper side, flowing around the wall of the enclosure protection structure is interfered, the boundary layer at the position is destroyed, and formation of a Karman vortex street is inhibited and destroyed. According to the technical scheme of the invention, the natural force is fully utilized, and in the premise of greenness and environmental protection, the optimal turbulent flow breaking effect is achieved, the phenomenon of the Karman vortex street is inhibited, occurrence of vortex-induced vibration is hindered, or vibration is reduced.
Description
technical field [0001] The invention relates to the technical field of wind power, in particular to a surrounding body for suppressing vibration of an enclosure structure, equipment, and a method for hoisting a tower. Background technique [0002] Please refer to Picture 1-1 , Picture 1-1 Schematic diagram of wind power generation equipment. [0003] The foundation of the wind power generation equipment is the tower tube 10, which acts as a load bearing and enclosure for the whole machine. As an example, take a circular section tower tube 10 as an example. The tower tube 10 can be a steel tube, or a steel tube and a steel tube. Combination of concrete towers. The tower 10 carries the nacelle 30 of the wind power generation equipment, the generator and the wind turbine 20 . The wind power generating set composed of the tower 10, the wind turbine 20, the nacelle 30 and the generator completes the task of obtaining wind energy and converting it into electrical energy. The ...
Claims
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IPC IPC(8): F03D80/00F03D13/20F03D13/10
CPCF03D13/10F03D13/20F03D80/00Y02E10/72Y02E10/728
Inventor 马盛骏
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD