Targeted ventilation device for relieving heat stress of cows

Abstract

The invention relates to a targeted ventilation device for relieving the heat stress of cows. The targeted ventilation device is characterized by comprising a plurality of support frames which are arranged on each neck cangue in an open type adult milch cow house at intervals, and an independent ventilation pipeline is supported on the top of each support frame together; each ventilation pipeline comprises a three-way pipe arranged in the center of the ventilation pipeline, the air inlet of the three-way pipe is connected with a fan through a round-heaven square-earth reducer pipe; an air supply branch pipe is respectively connected on air outlets in two sides of the three-way pipe, and each air supply branch pipe is composed of a plurality of straight pipes and reducer pipes for connecting adjacent two straight pipes; and the farthest end of the air supply straight pipe is sealed. The diameters of the straight pipes are gradually reduced from the positions connecting with the three-way pipe to the far end, an air supply hole is formed in each reducer pipe, and the positions of the air supply holes are consistent. A spraying pipe is also supported at the top of each support frame together, and a nozzle is correspondingly arranged in the position of the air supply hole in each reducer pipe. A louver used for regulating the wind direction is respectively installed at each air supply hole. The targeted ventilation device can be widely applied targeted ventilation of animal husbandry and animal cultivation.

Description

technical field [0001] The invention relates to a ventilation device, in particular to a targeted ventilation device for relieving heat stress of cows in an open barn in summer. Background technique [0002] The development of the dairy industry has become a symbol of the development level of a country's animal husbandry and even the entire agriculture. In summer, the high-temperature climate in most parts of my country will cause heat stress in dairy cows, which will greatly reduce the feed intake and milk production of dairy cows, and greatly affect their health and fecundity, especially for high-yielding dairy cows. Therefore, ventilation and cooling of dairy cows in summer is very important during breeding. In order to reduce the loss of dairy cows caused by heat stress as much as possible, corresponding technical measures should be taken to control the temperature of the dairy cow feeding environment. At present, the methods for improving the heat stress of dairy cows...

AI Technical Summary

Problems solved by technology

However, this method of spray cooling makes the diameter of the spray droplets too small to penetrate the cow hair. Not only does it not touch the skin of the cow, but it increases the air humidity. In addition, the exhaust fan is far away from the cow body, which cannot take away the evaporative heat well, affecting cooling effect

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