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A Local Precise Ventilation Device for Cow's Neck Cooling

A ventilation device and local technology, which can be used in applications, animal houses, animal husbandry, etc., can solve the problems of air dispersion at the air supply outlet, and achieve the effect of local air supply being comfortable and soft, and relieving heat stress.

Inactive Publication Date: 2016-11-09
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the action of the air jet, the air flow from the supply air outlet is dispersed when it reaches the neck of the cow

Method used

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  • A Local Precise Ventilation Device for Cow's Neck Cooling
  • A Local Precise Ventilation Device for Cow's Neck Cooling
  • A Local Precise Ventilation Device for Cow's Neck Cooling

Examples

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Effect test

Embodiment 1

[0045] In the open dairy cow house, according to the space size of the open dairy cow house and the position of the flail 11, the local precision ventilation device can be designed into four groups of ventilation device 1, ventilation device 2, ventilation device 3, and ventilation device 4 (such as figure 1 As shown), they are arranged in two rows facing each other.

[0046] Such as figure 2 As shown, the local precise ventilation device of this embodiment is aimed at 13 groups of pillory 11, and a ventilation duct 4 is arranged on the top of a plurality of pillory 11, and the number of reducing pipes 5 on each ventilation duct 4 is thirteen. The aperture size of the second straight pipe 6 is calculated by the static pressure recovery method in the prior art. In this embodiment, the design air volume of a local precision ventilation device is 4680m 3 / h, the system resistance is 250Pa, the above standard is used as the selection standard of cooling air unit 1. The static ...

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Abstract

The invention belongs to the field of ventilation equipment, and in particular relates to a local precise ventilation device for reducing the temperature of the cow's neck in an open barn in summer to alleviate the heat stress of the cow. The ventilation device comprises a cooling air unit (1), a ventilation duct (4), an air supply port (9), a first support frame (10), a neck flail (11), and a second support frame (17). During the feeding stage of the cows in the open barn in summer, the ventilation device is aimed at the neck of the cows, and a local precision air supply device is installed on the upper part of the neck flail to relieve the heat stress of the cows.

Description

technical field [0001] The invention belongs to the field of ventilation equipment, and in particular relates to a local precise ventilation device for reducing the temperature of the cow's neck in an open barn in summer to alleviate the heat stress of the cow. Background technique [0002] The heat stress of dairy cows caused by high temperature in summer has always been one of the important reasons restricting the development of my country's dairy industry. Heat stress in dairy cows will greatly reduce the feed intake and milk production of dairy cows, affect the health and fertility of dairy cows, and even lead to death. At this stage, from the perspective of environmental control, the methods of physically cooling dairy cows and solving the heat stress of dairy cows are mainly divided into three categories: ① Reducing solar radiation, such as building sunshade structures. ② Increase the ventilation in the house, such as: longitudinal mechanical ventilation. ③ Apply eva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K1/00
Inventor 丁涛施正香王朝元刘志伟杨建宝崔乃文
Owner CHINA AGRI UNIV
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