A winter ventilation system and airflow organization method for a closed chicken house

Abstract

The present invention belongs to the field of agricultural facilities, and relates to a confined poultry house winter ventilation system and an air distribution method. the system comprises air inlet windows (2), hencoops (3), negative-pressure air fans (6), vertical walls (7) and gable walls (8), wherein passages are formed among different hencoops (3) and between the outmost hencoops (3) and the vertical walls (7), the air inlet windows (2) are uniformly arranged on upper parts of the vertical walls (7) at two ends, a plurality of guide devices (1) are arranged in a parallel and staggered manner at a roof part corresponding to the passages, trench exhaust outlets (4) are arranged at a distance on the ground of the passages, an exhaust trench (5) is arranged lengthwise on the ground of each passage and is connected with the trench exhaust outlet (4) inside the passage, and the negative-pressure air fans (6) are installed on the gable wall (8) at one end and are communicated with the exhaust trenches (5) through pipelines. With adoption of the confined poultry house winter ventilation system and the air distribution method, differences in temperature and air qualities among different passages and different hencoop layers can be effectively reduced, and air is orderly and uniform in distribution.

Description

technical field [0001] The invention belongs to the field of facility agriculture, and relates to a winter ventilation system and an airflow organization method for a closed chicken coop. Background technique [0002] As the most intensive laying hen industry in animal husbandry, in order to minimize the impact of external environmental changes on laying hen production and maximize the artificial control of the house environment, large-scale laying hen farms adopt fully closed houses for breeding. It is particularly important to be able to provide a stable and good air environment for laying hen houses, which is directly related to the success or failure of chicken production, and is highly valued by relevant industry insiders and experts. [0003] Longitudinal ventilation plus humidification curtain cooling system is widely used in the production of laying hens in my country. It generally solves the problems of reduced production and increased death rate of laying hens caus...

AI Technical Summary

Problems solved by technology

[0007] (2) There are differences in the air quality of different cage layers

[0008] (3) The wind speed near the fan is high and the air quality is poor

[0009] (4) Air cross-infection is serious

The exhaust outlet is arranged under the inlet air, and the dirty air that may be exhausted by the fan may enter the house again, or enter the next-door chicken house. The clean sewage outside the house is not separated, and cross-infection is serious

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