Novel livestock and poultry multi-story building ventilation system

Abstract

The invention relates to a novel livestock and poultry multi-story building ventilation system. The ventilation system is arranged in a livestock and poultry building; the livestock and poultry building is communicated with an air shaft; an exhaust fan is arranged on a wall body of the air shaft in a concentrated mode; a summer ventilation system comprises a summer ventilation pipe; the summer ventilation pipe is arranged above a feeding layer; multiple summer air outlet pipes with different angles are distributed at the bottom of the summer ventilation pipe; a winter ventilation system comprises a winter ventilation pipe; the winter ventilation pipe comprises a preheating section and an air outlet section; the preheating section is arranged in a preheating air duct; one end of the preheating section is communicated with the bottom end of an air chamber through an adjustable winter air inlet; the other end of the preheating section is connected with the air outlet section through a connecting section; the air outlet section is also arranged above the feeding layer; and multiple air outlet pipes with the length directly reaching the downstream of the feeding layer are distributed at the bottom of the air outlet section. The summer air outlet pipes blow air to the pig body in three directions, so that the optimal air speed, air volume and air blowing position can be provided for the pig. The winter air outlet pipes are conveyed to the ground position, hot vitiated air is squeezed out of a ceiling from the bottom, and an air outlet can be adjusted, so that the optimal air volume can be provided.

Description

technical field [0001] The invention relates to the field of ventilation of animal husbandry breeding buildings, in particular to a novel multi-storey building ventilation system for livestock and poultry. Background technique [0002] Since the implementation of the "Regulations on the Prevention and Control of Pollution from Large-scale Livestock and Poultry Breeding" on January 1, 2014, environmental protection policies have been introduced intensively, and the land for breeding has become increasingly tense. However, China has a large population, and the consumption of livestock and poultry products is huge. The disadvantages of traditional single-story livestock and poultry houses occupying a large area are becoming more and more prominent, especially in hilly and mountainous areas. With the intensive promulgation of national environmental protection policies, the breeding land is becoming increasingly scarce. Under such circumstances, in order to save the land used fo...

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Problems solved by technology

Raising pigs in buildings is different from raising pigs in one-story houses. Due to the lack of architectural structures such as attics, ventilation structures such as roof fans and roof air inlets cannot be used in the design of mechanical ventilation systems in pig houses; in the design of mechanical ventilation systems in building-type pig houses At present, most domestic pig houses are designed with longitudinal ventilation or horizontal ventilation. Although these two ventilation modes can ensure the ventilation volume of livestock and poultry houses, due to the design of the ventilation system, the cooling in summer and the ventilation in winter are unevenly distributed. , causing harm to livestock and poultry production

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