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Self-protection wind-driven water lifting system with accelerating vanes

A technology of self-protection and blades, which is applied in the direction of wind turbines, wind turbines, and wind motor combinations in the same direction as the wind. It can solve the problems of low wind energy utilization rate and large number of blades, so as to improve the wind energy utilization coefficient and reduce blade tips. Vortex, the effect of improving the utilization rate

Inactive Publication Date: 2015-02-11
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a self-protection wind water lifting system with speed-increasing blades in order to overcome the shortcomings of the prior art. problem, and cleverly use the water pressure of the water pump outlet under strong wind to drive the action of the hydraulic speed regulating mechanism, control the wind power transmission mechanism to respond to the yaw in time, and achieve the purpose of automatically protecting the system unit

Method used

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  • Self-protection wind-driven water lifting system with accelerating vanes
  • Self-protection wind-driven water lifting system with accelerating vanes
  • Self-protection wind-driven water lifting system with accelerating vanes

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1: When the head is 5m and the incoming wind speed is 2.7m / s, the blade (1) of the self-protected wind water lifting unit with speed-increasing blades of the present invention starts to rotate, and now the water lifting mechanism can be directly driven Start to work and lift water; when the wind speed is 3m / s, the rotating speed of the blade (1) is stable, and the rotating speed of the blade (1) of the wind power water lifting unit with load is 25r / min; when the wind speed increases to 8m / s When the rated wind speed is , the speed of the blade (1) of the wind power water lifting unit is 75r / min, and the water lifting flow rate is 25m when the head is 5m 3 / h~30m 3 / h, wind energy utilization rate ≥ 0.42.

Embodiment 2

[0050] Embodiment 2: When the lift is 9m and the incoming wind speed is 2.7m / s, the blade (1) of the self-protection wind water lifting unit with speed-increasing blades of the present invention has begun to rotate. The rotating speed of the blade (1) is 27r / min. At this time, the wind power transmission mechanism has not driven the water lifting mechanism to work; when the wind speed reaches 3m / s, the wind power water lifting unit drives the water lifting mechanism to start working and lift water; when the wind speed is 3.5 At m / s, the rotating speed of the blade (1) of the wind power water lifting unit is stable. At this time, due to the load on the unit, the rotating speed of the blade (1) reaches 30r / min; when the wind speed increases to the rated wind speed of 8m / s, the wind power lifts The rotating speed of the blade (1) of the water unit is 65r / min, and the water lifting flow rate is 10m 3 / h~15m 3 / h, wind energy utilization rate ≥ 0.42.

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Abstract

The invention relates to a self-protection wind-driven water lifting system with accelerating vanes. The self-protection wind-driven water lifting system comprises a water lifting mechanism directly driven by a wind power transmission mechanism and is characterized in that the cross sections of the vanes adopt NACA series wing sections, the streamline accelerating vanes are started at a low wind speed and output high torques, the vanes comprise low-speed vane tips and large-torsion vane roots and are divided into twenty cross sections from the vane roots to the vane tips for setting mounting angles, and the cross sections are in smooth transition with each other; a water outlet of a water pump of the water lifting mechanism is connected with a water-out pressure regulating cylinder of a hydraulic speed regulating mechanism. The problems of the traditional wind-driven water lifting system, such as large vane number and low wind energy utilizing rate are solved. The hydraulic speed regulating mechanism is driven to act through the skillful utilization of the water pressure of the water outlet of the water pump under large wind power, the wind power transmission mechanism is controlled to timely respond to yaw, and the purpose of automatically protecting system units is achieved. The self-protection wind-driven water lifting system is suitable for the farmland irrigating application of remote areas lack of electricity resources.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a self-protecting wind-powered water-lifting system with speed-increasing blades. Background technique [0002] New energy has highlighted an increasingly important position and role in today's economic and social development. Wind energy has been widely used as a clean, non-polluting and cheap renewable energy. At present, there are mainly two ways to utilize wind energy. One is to convert wind energy into mechanical energy through a wind power generation device, and then convert the mechanical energy into electrical energy through a generator and incorporate it into the grid for utilization. This method of wind energy utilization has been studied in depth and has been A mature wind power theory and industrial model has been formed. However, this kind of wind power generation requires a more complex control system, as well as relatively expensive electrical equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06F03D7/04F03D9/00F04B17/02
CPCF03D1/0633F03D1/0658F03D7/04F03D9/28F04B17/02Y02A20/00Y02E10/72
Inventor 郑源高翀恒牟童赵振宙韩星星宋晨光程相李中杰阚阚
Owner HOHAI UNIV
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