A frequency conversion fan heat recovery ventilation system for four-season ventilation in livestock and poultry houses

Abstract

The invention relates to a variable frequency fan heat recovery ventilation system for livestock building four-season ventilation, which is mainly suitable for most national northern regions and also suitable for southern regions to use refrigeration air conditioners for cooling in summer. The system comprises a core body 1, a fan system, a bypass device, a cleaning filter device and an automatic control system. Aiming at the demand of high livestock building ventilation quantity, the combination mode and the parameter matching of a heat recovery core body and a ventilation fan are designed and developed, so that the relation between the heat recovery efficiency and the ventilation efficiency is balanced, the contradiction between the livestock ventilation and the heating / cooling energy consumption is solved, the emission of livestock waste gas and dust to the atmosphere is reduced, and the pollution of the livestock buildings to surrounding atmosphere is reduced; under the condition of not prominently reducing or raising the in-livestock building temperature, the in-livestock building air quality is improved, the disease generation rate is reduced, and the livestock building animal production performance is improved; and meanwhile, the bypass device, a variable frequency fan and the automatic control system are coupled to save the ventilation energy consumption and to reduce the investment cost of the livestock building ventilation system.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding facilities, in particular to a heat recovery and ventilation system of a frequency conversion fan that is mainly suitable for most areas in northern my country and also suitable for four-season ventilation of livestock and poultry houses that use air conditioners to cool down in summer in southern regions. Background technique [0002] Cold stress or heat stress can easily cause adverse effects on the growth and production of livestock animals. In production, when the temperature required for animal production cannot be met simply by building heat and cold protection, in order to alleviate the cold or heat stress of animals, many farms will use air conditioners, wet curtain fans, etc. to cool down, and boilers to provide heating. Suitable temperature in the house. In order to ensure a suitable production environment in the house, ventilation is also the key. Livestock and ...

AI Technical Summary

Problems solved by technology

In addition, when the heat recovery ventilation system is used in livestock houses, the heat exchange core is easily blocked by dust and animal dander in the house. If it is not cleaned in time, the ventilation speed and ventilation efficiency of the heat recovery core will be affected.

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