Ditch-type ventilation device for multi-layer cage rearing of poultry

Abstract

The invention provides a ditch-type ventilation device for multi-layer cage rearing of poultry, which is used for solving the problem in the prior art that indoor air and outside air directly ventilate to result in poor air quality. The device comprises an underground constant-temperature space, an underground passage, a fan and a poultry housing, wherein the underground constant-temperature space is provided with an air inlet; the underground passage consists of a primary passage and a plurality of branch passages, wherein the primary passage is communicated with the underground constant-temperature space, and all the branch passages are communicated with the primary passage respectively; the fan is arranged in the underground constant-temperature space to provide power for air to unidirectionally flow from the underground constant-temperature space to the primary passage; the poultry housing is internally provided with a plurality of constant-temperature air outlets which are in one-to-one correspondence and mutual communication with the branch passages. The device provided by the invention breaks through a traditional ventilation mode of the breeding industry. Underground constant-temperature air can flow into the poultry housing through a guide plate in the process of air exchange, and the spatial air quality is improved mainly by a convection manner, so that the existing upper and lower temperature difference is greatly reduced, and more than three times of energy sources can be saved in practical application.

Description

technical field [0001] The invention relates to the field of breeding technology, in particular to a trench-type ventilation device for raising chicken cages with multiple layers. Background technique [0002] In the early stage of economic development, the aquaculture industry is often manifested as crop production, the so-called "backyard aquaculture industry". With the development of the economy, it gradually develops into a relatively independent industry in some sectors, such as: laying hen industry, broiler industry , dairy industry, pig industry, etc. After 40 years of development in China's aquaculture industry, especially after the Third Plenary Session of the Eleventh Central Committee, by 1990, the proportion of the output value of the aquaculture industry to the total agricultural output value had reached 26.6% based on current prices. [0003] With the emergence of relatively independent aquaculture industry, it began to differentiate into a powerful industrial...

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Problems solved by technology

[0005] The invention proposes a trench ventilation device for poultry in multi-layer cages, which solves the problem of poor air quality caused by direct ventilation of indoor and outdoor air in the prior art

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