Wind energy recycling system for livestock and poultry house

Abstract

The invention relates to a wind energy recycling system for a livestock and poultry house. The wind energy recycling system is used for being matched with the livestock and poultry house in use, and one or more ventilation fans are arranged on the gable wall at the rear end of the livestock and poultry house. The wind energy recycling system for the livestock and poultry house comprises an airflowguide device and one or more vertical axis wind-driven generator, wherein the airflow guide device comprises a big-bore end, a small-bore end and a hollow internal channel, the cross-sectional area of the internal channel at the big-bore end is larger than that of the internal channel at the small-bore end, and one or more ventilation fans are surrounded with the projection of the big-bore end onthe gable wall at the rear end of the livestock and poultry house; a wind rotor of each vertical axis wind-driven generator is arranged in the internal channel of the airflow guide device or arrangedbeyond the small-bore end of the airflow guide device along the extension line of the vertical axis of the internal channel of the airflow guide device. According to the wind energy recycling system,the ventilation system of a whole-environment-controlled livestock and poultry house is combined with the distributive wind power generation technology, electric energy consumed in the ventilation process can be significantly recycled, and the wind energy recycling system has good economic efficiency, ecological efficiency and social efficiency.

Description

technical field [0001] The invention relates to the field of wind energy recovery and reuse technology and facility agriculture, in particular to a livestock and poultry house wind energy recovery system applied to the air outlet at the end of the livestock and poultry house. Background technique [0002] At present, according to the practical experience of economic development and food consumption at home and abroad, with the increase in population and the acceleration of urbanization, the economic level of the people in China continues to improve, and the demand for animal protein continues to increase. The rapid development of animal agriculture is inevitable. reverse. Large-scale breeding is the necessity of the development of animal husbandry, and it is also the main symbol of the modernization of animal husbandry. The production of livestock and poultry is gradually transferred to the house for large-scale, intensive and standardized production. [0003] At the same ...

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Problems solved by technology

But this scheme still has some deficiencies, for example: 1) the ventilation speed of the poultry house ventilation fan is generally low, and the optimal power generation wind speed required by the wind generator is generally high, and the degree of matching between the two is not high. 2) The technical solution disclosed in Document 1 is only provided with a single fan at the vent, but at this stage livestock and poultry breeding is basically large-scale breeding, and a livestock and poultry breeding The number of ventilation fans in the house is as high as 10 or more, and the ventilation volume is large. The scheme in Document 1 does not involve the coordinated utilization of the airflow of multiple ventilation fans, nor does it involve the use of multiple wind turbines. There is no reference value for wind energy recovery in farms; 3) The scheme in Document 1 cannot automatically adjust the wind energy recovery system in the case of dynamic changes in ventilation air volume, the efficiency of wind energy recovery is not high enough, the flexibility of installation and operation is insufficient, and the ventilation of poultry houses is limited. Lack of adaptability to different working conditions; 4) The scheme in Document 1 does not filter poultry house ventilation before wind energy recovery, which may cause serious damage to fan blades and generators caused by impurities, feathers, and harmful gases inside the poultry house; 5) In practical application, the ventilation air source of the poultry house is accompanied by high turbulence, and the wind speed fluctuates greatly. The power generation efficiency of the horizontal axis fan is low under this wind energy condition, etc.

Therefore, the effect of the existing technology to generate electricity by using the wind force of the ventilation of the fully environment-controlled livestock and poultry house is not ideal, and it is difficult to popularize and apply it in actual production.

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