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Wind power utilization method and special device in wind discharge barrel of mine

A special device and exhaust duct technology, which is applied in the ventilation of mines/tunnels, wind engines consistent with the wind direction, wind power generation, etc., can solve the problems of affecting the air volume and service life of underground mines

Inactive Publication Date: 2014-04-02
王兆兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention provides a kind of available new technical scheme for utilizing the wind energy of mine air outlet, but such design also has following imperfection, mainly contains: 1, because the wind speed at the air outlet place is very high, can Reaching 16.4 m / s, 7-level wind force, under such wind speed, the buckle-type design makes the wind wheel cover withstand the test of high-speed rotation of the impeller, which will directly affect its service life
2. The design of the buckle cover essentially constitutes the closure of the air outlet, which may directly affect the air output in the mine, which is not allowed

Method used

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  • Wind power utilization method and special device in wind discharge barrel of mine
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  • Wind power utilization method and special device in wind discharge barrel of mine

Examples

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Effect test

Embodiment 1

[0025] Wind energy utilization method and special device in a kind of mine exhaust duct of embodiment 1 of the present invention (see figure 1 ), it takes the wind energy utilization of a small-scale gold mine exhaust duct as the design object, the wind speed in the duct is not high, and the underground ventilation performance is better. The object of the circular exhaust cylinder 1 is 3 meters high. In order not to affect the discharge of the air volume in the exhaust cylinder 1, when designing the outlet section of the exhaust cylinder 1 is 1 meter away from the outlet end, and a wall is made on the cylinder wall. The impeller shaft hole, the generator 4 is arranged on the outside of the exhaust cylinder 1, and is installed on the generator frame. The impeller 2 of the generator is located inside the exhaust cylinder 1. The impeller 2 has seven impeller blades evenly distributed around the impeller shaft. The impeller 2 is connected with the generator 4 on the outside of the...

Embodiment 2

[0027] Wind energy utilization method and special device in a kind of mine exhaust duct of embodiment 2 of the present invention (see figure 2 ), it takes the wind energy utilization of the mine exhaust duct of a medium-sized gold mine as the design object, the wind speed requirement is higher, and the underground ventilation performance is better. The exhaust cylinder 1 is the object of implementation, and the exhaust cylinder 1 is 3 meters high. A pair of impeller shaft holes are arranged symmetrically on the exhaust cylinder body 1, and the impeller shaft 3 passes through the impeller shaft holes, and the impeller 2 is installed on the top end of the impeller shaft 3 in the inner cavity of the exhaust cylinder body 1, and the impeller 2 has four impellers The blades are evenly distributed around the impeller shaft, and after the other end of the impeller shaft 3 is installed with a reduction device 5, it is connected with the generator 4, and the generator 4 is installed o...

Embodiment 3

[0029] Wind energy utilization method and special device in a kind of mine exhaust duct of embodiment 3 of the present invention (see image 3 and Figure 4 ), it is designed based on the utilization of wind energy in a large coal mine exhaust duct, because the wind speed in a large coal mine exhaust duct is relatively high, generally around 16.4 m / s, and the diameter of the exhaust duct is more than 3 meters , usually the underground ventilation performance requirements are very strict, and there will be a certain amount of combustible gas in the exhausted wind. In order not to affect the exhaust air volume and make full use of the wind energy in the exhaust cylinder, it is designed as follows: in the original exhaust cylinder 1 Under the condition that the height is 3 meters, the height of the exhaust cylinder 1 is extended to 5 meters, and 4 power generating devices are evenly spirally arranged around the exhaust cylinder 1 . The impeller shaft hole is set at the correspon...

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Abstract

The invention relates to a wind power utilization method and a special device in a wind discharge barrel of a mine, relating to the technical field of wind power generation. The invention has the design scheme that the wind discharge barrel is used as an implementation object, and wind discharged from the wind discharge barrel is used for power generation. The method comprises the following specific steps of: arranging a wind power generating device at the outlet of the wind discharge barrel, arranging impellers in a cavity of the wind discharge barrel, driving the impellers to rotate by using the wind in the wind discharge barrel, and connecting a connecting shaft with a generator arranged outside the wind discharge barrel to complete the conversion from wind energy to electrical energy. The design scheme reduces resistance to wind in the wind discharge barrel because the power generating device occupies the space in the wind discharge barrel and furthest utilizes the wind energy of the wind discharge barrel.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for utilizing wind energy in a mine exhaust duct and a special device. Background technique [0002] In the existing mining industry, two methods of air supply and exhaust are used to ensure the air circulation of the underground working surface, while the underground exhaust equipment consumes a huge amount of electric energy, and the underground wind is directly discharged out of the well at a wind speed of about 16 m / s. These wind energies have not been effectively utilized for a long time. According to relevant records, more than 20,000 enterprises in the country that use exhaust equipment to produce exhaust have a total exhaust power of about 300,000 kilowatts. Calculated on the basis of 8,000 hours per year for each fan, the annual power consumption is about 2.4 billion kWh. 1.68 billion yuan. And how to utilize these wind energies has become a subj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D1/00F03D1/04F03D1/06E21F1/04
CPCY02E10/721Y02E10/72
Inventor 王兆兴吕维学
Owner 王兆兴
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