Joint type horizontal axis wind turbine blade section for icing test
A horizontal axis, test technology, applied in the field of wind turbines, can solve the problems of lack of horizontal axis wind turbine blades, etc., and achieve the effect of novel structure, wide application range, and convenient assembly and adjustment
Active Publication Date: 2014-05-14
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology
Most of the existing test horizontal axis wind turbine blades are designed according to their aerodynamic characteristics to determine the relevant structural parameters, and then conduct ice wind tunnel tests to observe the icing characteristics of each section of the wind turbine blades, but there is no dedicated icing test equipment. The horizontal-axis wind turbine blades provide an experimental basis for the observation of the icing characteristics of the horizontal-axis wind turbine and the design of the horizontal-axis wind turbine for cold weather conditions
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[0011] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. A blade segment of a horizontal axis wind turbine for joint-type icing tests, characterized in that a flange-type left splint 2 and a flange-type right splint 5 are installed on a shoulder-type main shaft 4, and the flange-type A radial clearance is provided between the inner holes of the left and right splints 2, 5 and the journal of the shouldered main shaft 4, and the external threads and the Internal thread, the flange type left splint 2 and the flange type right splint 5 are respectively located on the left and right sides of the shoulder of the shoulder type main shaft 4, and the shoulder type main shaft 4 is fixed by the fastener group 3 The clamp is fastened between the flange-type left and right splints 2 and 5 and integrated; the flange-type left and right splints 2 and 5 fixed with the shoulder-type main shaft 4 are integrally arranged on ...
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The invention provides a joint type horizontal axis wind turbine blade section for an icing test, and belongs to the technology of wind turbines. A left flange type clamping plate and a right flange type clamping plate are installed on a shoulder type spindle in a sleeved and matched mode, radial clearances are arranged between an inner hole of the left flange type clamping plate and a spindle neck of the shoulder type spindle and between an inner hole of the right flange type clamping plate and the spindle neck of the shoulder type spindle, the left end of the shoulder type spindle and the right end of the shoulder type spindle are provided with external threads and internal threads respectively, the external threads and the internal threads are matched in size, and the shoulder type spindle is fixedly installed between the left flange type clamping plate and the right flange type clamping plate in the clamped mode through a fastener group to form a whole; the left flange type clamping plate and the right flange type clamping plate are integrally arranged in a hollow cavity of the horizontal axis wind turbine hollow blade section and connected in a fixed installation mode. The joint type horizontal axis wind turbine blade section is novel, reasonable and compact in structure, convenient to assemble and adjust, high in practicability and wide in application range.
Description
technical field [0001] The invention belongs to the technical field of wind power machines, and mainly relates to a blade structure of a horizontal axis wind power machine for icing experiments. Background technique [0002] Horizontal axis wind turbines are the mainstream products in the field of wind power generation, and they are distributed in a wide range of inland and coastal areas. At the same time, due to the aggravation of global climate change due to global warming, harsh weather such as severe cold, freezing and blizzard frequently occurs, which puts forward higher requirements for the low temperature resistance and anti freezing characteristics of horizontal axis wind turbines distributed in cold regions. On the other hand, with the rise of offshore wind power, compared with land, the air in the ocean is humid and more likely to freeze in winter. After the horizontal axis wind turbine blades are covered with ice, the aerodynamic characteristics of the surface wi...
Claims
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Login to View More IPC IPC(8): F03D1/06
CPCY02E10/72
Inventor 李岩王绍龙冯放白音巴特尔李芳代
Owner NORTHEAST AGRICULTURAL UNIVERSITY