Hog house vertical ventilation system

Abstract

The invention relates to a hog house vertical ventilation system. The system comprises an air inlet formed in the outer wall of a pig house and a plurality of ventilation windows arranged at a ceilinginside the pig house, and the air inlet is communicated with the ventilation windows through an air supply pipe; an air deflector is installed at an air outlet of each ventilation window, and air flow blown from the ventilation windows is steered by the air deflectors and blown into the pig house in the direction forming the acute angle with the direction of gravity. According to the vertical ventilation system, on the basis of ensuring that airflow perpendicularly flows from the ceiling to a leakage plate, the phenomenon that the air flow directly flows to pigs vertically is avoided, the pigcomfort is improved, and diseases are avoided.

Description

technical field [0001] The invention belongs to the field of livestock breeding equipment, and in particular relates to a vertical ventilation system for pig houses. Background technique [0002] my country's pig industry continues to develop at an extremely fast speed, and has become the world's largest pork producer, and the per capita share has exceeded the world average level. The overall situation of pig production in the country is relatively good. With the expansion of the scale of pig raising and the control and recycling of waste water, waste gas and waste residues produced by breeding, the application proportion of closed pig houses has continued to increase. For closed pig houses, the internal air circulation is extremely important. On the one hand, it needs to provide enough oxygen to the pig house, and on the other hand, it needs to take away the steam heat, ammonia nitrogen and other toxic gases produced by fermentation in the pig house. [0003] The ventilati...

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Problems solved by technology

[0004] However, the vertical ventilation system in the prior art generally makes the air flow vertically from the air outlet of the ceiling to the ground, and then guides the air flow through equipment such as pipes arranged under the floor slatted plate, so there are two serious problems

On the one hand, the airflow is directly and violently vertical to the back of the pig, which can easily cause the rapid loss of body temperature of the pig and even cause disease; on the other hand, the air flow direction of this vertical ventilation is basically 90° to the air flow direction in the natural environment Therefore, it is impossible to rely on the power of natural ventilation, and power equipment such as blowers must be manually installed to provide airflow energy, which increases the cost

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