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Improvement method for fan

A technology of fans and fan blades, which is applied in the field of fan transformation, can solve the problems of lack of economic benefits and high costs of technology upgrades, and achieve the effects of lengthening, cost saving, and simplification of operating procedures

Inactive Publication Date: 2015-11-18
CHINA DATANG CORP RENEWABLE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, wind farms that have adopted a conservative strategy of choosing short blades will need to repurchase blades if they wish to use longer blades
This makes technology upgrades cost-prohibitive and often impossible because the economics of technology upgrades are not available

Method used

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  • Improvement method for fan
  • Improvement method for fan
  • Improvement method for fan

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Embodiment Construction

[0039] Such as Figure 1-11 As shown, some of the existing fans were limited by the production process of the blades at that time, and they could not process longer fan blades. The power generation can be achieved by selecting relatively short fan blades. Nowadays, the production process of fan blades is becoming more and more mature, and the length of the blades is no longer limited, so the length of newly installed fan blades has increased compared to previous years. However, if the fans installed in the past few years are replaced with longer fan blades, the cost will be too high. If the existing fan blades are removed and rebuilt, it will be a waste of time, and the disassembly and assembly of the blades is also very complicated, resulting in a cumbersome transformation process. , time-consuming and labor-intensive, the present invention provides a fan modification method, aiming at the problem of short blades of the existing fan, the length of the blade of the existing fa...

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Abstract

The invention relates to an improvement method for a fan. The appropriate length L of a blade of the fan is determined according to the load of the blades of existing fans and the wind speeds of the places where the existing fans are located, and the blades of the existing fans are lengthened to the appropriate length L without disassembling the blades of the existing fans. With the improvement method for the fan, it is not needed that the blades of a fan are dissembled for the improvement, an operator rises to the tail ends of the blades through an elevator or a hanging basket to carry out the improvement at the tail ends of the blades of the fan, the operation sequence is simplified, time and labor are saved, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a method for transforming a wind turbine. Background technique [0002] As a clean and renewable energy, wind energy has attracted more and more attention from all countries in the world, and its reserves are extremely huge. As one of today's new energy industries, wind power has developed rapidly due to its environmental protection and energy conservation. At present, my country has nationwide There are tens of thousands of wind turbines, and they still have a momentum of rapid development. The basic working principle of the wind turbine is to absorb energy from the wind through the wind wheel and convert the wind energy into rotational energy by using the principle of aerodynamics, and then convert the rotational energy into electrical energy through the generator. Among them, the wind rotor includes the hub and blades. The longer the blade length, the more wind energy can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCY02E10/72
Inventor 时文刚辛克锋李清义刘峰
Owner CHINA DATANG CORP RENEWABLE POWER
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