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Variable-pitch net-shaped stay wire wind wheel

A wind wheel and mesh technology, applied in wind power generation, wind engine, wind engine control, etc., can solve problems such as cost reduction

Inactive Publication Date: 2013-12-04
陆中源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 〔0001〕The present invention provides a new type of wind turbine on the basis of the above-mentioned variable-pitch cable-stayed wind wheel, which is called "variable-pitch net-shaped cable-stayed wind wheel". The problem of the above-mentioned guyed wind wheel is solved, and the above-mentioned shortcomings of the three-blade wind wheel are overcome

Method used

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  • Variable-pitch net-shaped stay wire wind wheel
  • Variable-pitch net-shaped stay wire wind wheel
  • Variable-pitch net-shaped stay wire wind wheel

Examples

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Embodiment Construction

[0013] From figure 1 , 2 , 4, 6, 7, 8 can be seen that the present embodiment has wheel hub 1, wheel rim 8, blade 3 and the backguy steel rope 2 that makes wheel hub 1 and wheel rim 8 be fixed as one, and steel rope 2 is with steel rope tensioner 35 Tensioned, the steel rope 2 longitudinally passes through the inside of the blade 3, and there is a clip 18 on the blade 3, which is characterized in that: the outer end and the inner end of the blade 3 are respectively connected with a blade pitch device. The 201120373287.4 patent of the author of this paper shows the wire-guy wind wheel scheme, which shows a pitch-changing device connected to the inner ends of the blades.

[0014] The simplest and most reliable pitch-changing device in which the outer and inner ends of the blades 3 are respectively connected is briefly described as follows: figure 2 , 4 As shown, the outer end cover 17 of the blade 3 is fixedly connected with the outer support plate 13, the reinforcing rod 20...

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Abstract

The invention discloses a variable-pitch net-shaped stay wire wind wheel, and belongs to the technical field of new energy. The variable-pitch net-shaped stay wire wind wheel comprises a wheel hub (1), a wheel rim (8), blades (3) and stay wire cables (2), wherein the wheel hub (1) and the wheel rim (8) are fixedly connected into a whole through the stay wire cables (2), and are tensioned through wire cable tensioners, and the stay wire cables (2) longitudinally penetrate through the blades (3). The variable-pitch net-shaped stay wire wind wheel is characterized in that the inner end and the outer end of each blade (3) are connected with blade variable-pitch devices, an outer supporting plate at the outer end of each blade (3) is hinged to each outer connecting line (5), each outer connecting line (5) is connected with one end of each outer rotating plate beside the outer connecting line, the other end of each outer rotating plate is connected with an outer backstay cable (4), a middle shaft of each outer rotating plate is hinged to an outer support fixed to the wheel rim (8), an inner supporting plate at the inner end of each blade (3) is hinged to an inner connecting line (7), each inner connecting line (7) is connected with one end of an inner rotating plate, and the other end of each inner rotating plate is connected with an inner backstay cable. According to the variable-pitch net-shaped stay wire wind wheel, variable-pitch stability of the blades is good, the helical face of a windward side of each blade is small in change, the wind power utilization coefficient is greatly improved, cost is greatly reduced, and the defects of a three-blade wind wheel and the defects of an existing stay wire wind wheel are overcome.

Description

technical field [0001] The invention relates to a wind turbine that converts wind energy into mechanical rotation energy, and belongs to the technical field of clean new energy. Background technique [0002] 〔0001〕On the present large and medium-sized wind power generators, the device that converts wind energy into mechanical kinetic energy is mostly a variable-pitch three-blade wind wheel. But the large and medium-sized variable-pitch three-blade wind rotor has many shortcomings, for example: 1. its wind energy utilization coefficient (the ratio of the rotational energy obtained by the wind rotor and the wind kinetic energy passing through the wind rotor) is only about 20% ( The limit value is 59.3%); ②The cost is high, and the installed capacity per kilowatt of reinforced FRP is nearly 2,000 yuan higher (the cost of variable pitch and low voltage capability accounts for about 30%); ③The life of reinforced FRP is short, and the strong Sometimes it is damaged under a typhoo...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D7/02
CPCY02E10/723Y02E10/721Y02E10/72
Inventor 陆中源
Owner 陆中源
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