Accurate local ventilation device used for reducing temperature of neck of dairy cow

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: 2014-11-19
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Accurate local ventilation device used for reducing temperature of neck of dairy cow
  • Accurate local ventilation device used for reducing temperature of neck of dairy cow
  • Accurate local ventilation device used for reducing temperature of neck of dairy cow

Examples

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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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PUM

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Abstract

The invention belongs to the field of ventilation equipment, and particularly relates to an accurate local ventilation device used for reducing the temperature of the neck of a dairy cow, wherein the accurate local ventilation device is used for relieving heat stress of the dairy cow in an open-type cowshed in summer. The ventilation device comprises a cold air unit (1), a ventilation pipeline (4), an air feeding port (9), a first supporting frame (10), a neck cangue (11) and a second supporting frame (17). The ventilation device is used in the eating stage of the dairy cow in the open-type cowshed in summer and used for the neck portion of the dairy cow, and the accurate local ventilation device is installed on the upper portion of the neck cangue to relieve heat stress of the dairy cow.

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 Applications(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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