CN104145827B - A kind of accurate ventilation unit in local for the cooling of milch cow cervical region - Google Patents

A kind of accurate ventilation unit in local for the cooling of milch cow cervical region Download PDF

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Publication number
CN104145827B
CN104145827B CN201410387994.7A CN201410387994A CN104145827B CN 104145827 B CN104145827 B CN 104145827B CN 201410387994 A CN201410387994 A CN 201410387994A CN 104145827 B CN104145827 B CN 104145827B
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China
Prior art keywords
air
ventilation
local
unit
cold wind
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Expired - Fee Related
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CN201410387994.7A
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Chinese (zh)
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CN104145827A (en
Inventor
丁涛
施正香
王朝元
刘志伟
杨建宝
崔乃文
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China Agricultural University
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China Agricultural University
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Abstract

The invention belongs to field of ventilation equipment, be specifically related to the accurate ventilation unit in local of a kind of milch cow cervical region cooling alleviating cow heat stress for open cowshed in summer.This ventilation unit includes cold wind unit (1), ventilation shaft (4), air outlet (9), the first bracing frame (10), neck cangue (11), the second bracing frame (17).This ventilation unit is the cow feeding stage in summer open cowshed, for the neck position of milch cow, installs local precisely air-supply arrangement on neck cangue top, alleviates cow heat stress.

Description

A kind of accurate ventilation unit in local for the cooling of milch cow cervical region
Technical field
The invention belongs to field of ventilation equipment, be specifically related to one and delay for open cowshed in summer Solve the accurate ventilation unit in local of the milch cow cervical region cooling of cow heat stress.
Background technology
It is important that the cow heat stress problem that summer high temperature causes always restriction China milk industry develops One of reason.Milch cow produces heat stress, and the feed intake of milch cow, milk yield can be greatly lowered, And affect health and the reproductive capacity of milch cow, even result in death.Present stage, from environmental Kuznets Curves angle Degree carries out Physical temperature-lowering to milch cow, and the method solving cow heat stress is broadly divided into three major types: 1. Reduce solar radiation, such as: build shade structures.2. ventilate, such as in increasing house: longitudinally machinery Ventilate.3. application evaporative cooling system, or will 2., be 3. used in combination with, such as: spray Cooling, the cooling of spray+fan system, bath etc..
Disclosed in JIUYUE in 2008 24 days, " domestic animal moves Chinese invention patent CN101268760A Field heat sink ", this device have employed house shading system and drives sunshade net launch and close up, meanwhile, With the addition of uniform mounting spray head above the compound sunshade net of absorbent material, be the most both possible to prevent Too much moisture directly falls in and causes sport surface muddy on ground, and moisture can be allowed again to hide Continue evaporation in screened postive, reduce air themperature.This way is mainly used in half-open or open The reduction of the ambient temperature of the sports ground of cowshed.
" domestic animal micro computer is certainly for Chinese invention patent CN1633843A disclosed in 6 days July in 2005 Control spray cooling device ", this device sprays in the water smoke of falling umbrella after using water atomization, plays domestic animal To certain cooling effect, alleviate domestic animal heat stress.But the mist cooling of this mode makes Obtain fogdrop diameter the least, it is impossible to penetrate ox hair, not only do not reach the skin of cattle, increase on the contrary Air humidity, exhaust fan is away from cattle body in addition, it is impossible to well take away Evapotranspiration heat, shadow Ring cooling-down effect.
" a kind of alleviation milch cow heat of Chinese invention patent ZL201210593457.9 disclosed in 2014 Stress targeting ventilation unit ", targeting ventilation shaft is arranged on the strength cangue of milch cow or sleeping by this device On Chuan, concentrating milch cow and search for food or couch the period, air-supply is passed through at the neck position for milch cow Directly blow and alleviate cow heat stress reaction in hole.But due to the effect of air-spray, air-supply Exit flow there occurs dispersion when arriving milch cow neck position.And the cervical region of milch cow is physics fall Temperature alleviates the most effective position of heat stress, it is therefore desirable to carries out local for milch cow cervical region and precisely send Wind could the most effectively alleviate cow heat stress.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of office for the cooling of milch cow cervical region The accurate ventilation unit in portion, this device is the cow feeding stage in summer open cowshed, for milk The neck position of cattle, installs local precisely air-supply arrangement on neck cangue top, and alleviating milch cow heat should Swash.
For achieving the above object, technical scheme is as follows:
A kind of accurate ventilation unit in local for the cooling of milch cow cervical region, this ventilation unit includes cold Blower fan group 1, ventilation shaft 4, air outlet the 9, first bracing frame 10, neck cangue 11, second support Frame 17;
Wherein, multiple first bracing frames 10 support ventilation shaft 4, multiple second bracing frames 17 Support cold wind unit 1;
Ventilation shaft 4 connects with cold wind unit 1, and ventilation shaft 4 is away from cold wind unit 1 one end Close;
Ventilation shaft 4 includes multiple second straight tube 6 and connects the of adjacent two the second straight tubes 6 One reducer pipe 5;
It is provided with air outlet 9 on each first reducer pipe 5.
Ventilation shaft 4 is connected with cold wind unit 1 by first straight tube the 2, first bend pipe 3.
Cold wind unit 1 includes blower fan the 14, second reducer pipe 15, wet curtain 16, and three is sequentially connected with.
First reducer pipe 5 and air outlet 9 are by first air-supply straight tube the 7, second bend pipe 8 and second Air-supply straight tube 13 connects.
The aperture size of described second straight tube 6 from the junction of the first bend pipe 3 to away from air-cooler Organize 1 one end to reduce step by step.
Described air outlet 9 is provided with regulation BAIYE 12.
The beneficial effects of the present invention is:
1, above the present invention each group of neck cangue in open cowshed, milch cow neck position is arranged One accurate ventilation shaft in local, each pipeline passes through cold wind unit blasting air, passes through straight-run of pipe And reduce balanced ventilation step by step to far-end through bend pipe junction, and set at each tapered pipeline Put straight-run of pipe, blown by rectangular air supply opening through bend pipe, therefore at stage milk ox head of searching for food When portion is positioned at neck cangue, comfortable local uniform air-supply environment can be enjoyed in the neck position of milch cow.
2, air outlet is directly installed on the position of milch cow neck above neck cangue by the present invention, by cold Blower fan group, by air cooling-down, carries out essence in the cow feeding stage for the neck position, local of milch cow Quasi-air-supply, the most effective heat stress alleviating milch cow.
3, the present invention utilizes cold wind unit, and the air after cooling is delivered to milch cow health office accurately The position of the neck in portion, the air after cooling can not use spray equipment, decrease milk The generation of cattle farm stain disease.
4, the present invention is mounted with to regulate the BAIYE of air supply direction at rectangular air supply opening, permissible Make local relief the most comfortable soft.
5, present invention can be widely used among animal husbandry and animal cultivation local ventilation.
Accompanying drawing explanation
Fig. 1 is that the present invention is becoming runing decoction for the accurate ventilation unit in local that milch cow cervical region is lowered the temperature Interior schematic layout pattern;
Fig. 2 is the present invention for the local accurate ventilation unit structural representation that milch cow cervical region is lowered the temperature;
Fig. 3 is that cattle cervical region is sent by the present invention for the accurate ventilation unit in local that milch cow cervical region is lowered the temperature The view of wind;
Fig. 4 is the schematic diagram of the air outlet 9 internal regulation BAIYE 12 of the present invention.
Reference
1 cold wind unit 2 first straight tube
3 first bend pipe 4 ventilation shafts
5 first reducer pipe 6 second straight tubes
7 first air-supply straight tube 8 second bend pipes
9 air outlet 10 first bracing frames
11 neck cangues 12 regulate BAIYE
13 second air-supply straight tube 14 blower fans
15 second reducer pipe 16 wet curtain
17 second bracing frames
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail Describe.
As in figure 2 it is shown, the local accurate ventilation unit bag for the cooling of milch cow cervical region of the present invention Include cold wind unit 1, ventilation shaft 4, air outlet the 9, first bracing frame 10, neck cangue 11, second Bracing frame 17, wherein, multiple first bracing frame 10 tops support a ventilation shaft 4 jointly, Multiple second bracing frame 17 tops support a cold wind unit 1 jointly.
Ventilation shaft 4 is connected with cold wind unit 1 by first straight tube the 2, first bend pipe 3, ventilates Pipeline 4 is closed away from cold wind unit 1 one end.
Cold wind unit 1 includes blower fan the 14, second reducer pipe 15, wet curtain 16, and three is sequentially connected with.
Ventilation shaft 4 includes multiple second straight tube 6 and connects the of adjacent two the second straight tubes 6 One reducer pipe 5.The aperture size of the second straight tube 6 from the junction of the first bend pipe 3 to away from cold wind Unit 1 one end reduces step by step.The aperture size of the second straight tube 6 uses the static pressure of prior art again Do in the proper way and be calculated.
As it is shown on figure 3, be provided with air outlet 9 on each first reducer pipe 5, both pass through first Air-supply straight tube the 7, second bend pipe 8 and the second air-supply straight tube 13 connect, and each air outlet 9 is corresponding The neck position of one cow head.Air outlet 9 is provided with regulation BAIYE 12, as shown in Figure 4, makes Milch cow sensation air current composition is the softest.In open one-tenth runing decoction air by blower fan 14, After the wet curtain 16 of reducer pipe 15 and spray cold water, evaporative cooling makes air themperature reduce; Cryogenic air is transported to the air outlet 9 being connected with the first reducer pipe 5 by ventilation shaft 4, by cold Air delivers to the neck position, local that cow heat stress is sensitive, directly takes away milch cow neck position Evapotranspiration heat, the effective heat stress alleviating milch cow.
Embodiment 1
Can be according to open one-tenth runing decoction space size and neck cangue 11 in open one-tenth runing decoction Position local precisely ventilation unit is designed to ventilation unit 1, ventilation unit 2, ventilation unit 3, Ventilation unit 4 four groups (as shown in Figure 1), in one-tenth two row the most positioned opposite.
As in figure 2 it is shown, the accurate ventilation unit in the local of the present embodiment is for 13 groups of neck cangues 11, many Individual neck cangue 11 top arranges a ventilation shaft 4, the reducer pipe on each ventilation shaft 4 jointly The quantity of 5 is 13.The aperture size of the second straight tube 6 uses the static pressure of prior art to regain method It is calculated.In the present embodiment, the design air flow of an accurate ventilation unit in local is 4680m3/ h, SR 250Pa, above-mentioned standard is as the selection standard of cold wind unit 1.Static pressure regains coefficient Being set as 0.75, the air output drafting air outlet 9 is 360m3/ h, then by calculating and can obtain Aperture size (high × wide) to each rectangle the second straight tube 6: L1=702 × 600mm, L2=696 × 600mm, L3=687 × 600mm, L4=678 × 600mm, L5=661 × 600mm, L6=640 × 600mm, L7=614 × 600mm, L8=583 × 600mm, L9=545 × 600mm, L10=499 × 600mm, L11=443 × 600mm, L12=372 × 600mm, L13=276 × 600mm.
The length of each second pipe 6 is set to 1.2 meters, the length of each the first reducer pipe 5 Being set to 0.4 meter, the bottom of second pipe 6 is set to 2 meters away from ground level.First air-supply straight tube The length of 7 is set to 0.4 meter, and sectional dimension is 100 × 200mm, the length of the second air-supply straight tube 13 Degree is set to 0.2 meter, and sectional dimension is 100 × 200mm.The size of air outlet 9 is set to 300×400mm。

Claims (3)

1. the accurate ventilation unit in local for the cooling of milch cow cervical region, it is characterised in that:
This ventilation unit include cold wind unit (1), ventilation shaft (4), air outlet (9), One bracing frame (10), neck cangue (11), the second bracing frame (17);
Wherein, cold wind unit (1) includes blower fan (14), the second reducer pipe (15), wet curtain (16), Three is sequentially connected with;
Multiple first bracing frames (10) support ventilation shaft (4), multiple second bracing frames (17) Support cold wind unit (1);
Ventilation shaft (4) connects with cold wind unit (1), and ventilation shaft (4) is away from air-cooler Group (1) one end is closed;
Ventilation shaft (4) includes multiple second straight tube (6) and connects adjacent two the second straight tubes (6) the first reducer pipe (5);
Being provided with air outlet (9) on each first reducer pipe (5), described air outlet (9) is pacified Being contained in the position of neck cangue (11) top milch cow neck, described air outlet (9) is provided with regulation hundred Leaf (12);
First reducer pipe (5) and air outlet (9) are by the first air-supply straight tube (7), second curved Pipe (8) and the second air-supply straight tube (13) connect;
Wherein, the length of described first air-supply straight tube (7) is set to 0.4 meter, and sectional dimension is 100 Mm × 200mm, the length of described second air-supply straight tube (13) is set to 0.2 meter, sectional dimension For 100mm × 200mm, described air outlet (9) is rectangle and size be set to 300mm × 400mm。
2. local as claimed in claim 1 precisely ventilation unit, it is characterised in that: ventilation shaft (4) Connected with cold wind unit (1) by the first straight tube (2), the first bend pipe (3).
3. local as claimed in claim 2 precisely ventilation unit, it is characterised in that: described second straight Pipe (6) aperture size from the junction of the first bend pipe (3) to away from cold wind unit (1) End reduces step by step.
CN201410387994.7A 2014-08-08 2014-08-08 A kind of accurate ventilation unit in local for the cooling of milch cow cervical region Expired - Fee Related CN104145827B (en)

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CN201410387994.7A CN104145827B (en) 2014-08-08 2014-08-08 A kind of accurate ventilation unit in local for the cooling of milch cow cervical region

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CN201410387994.7A CN104145827B (en) 2014-08-08 2014-08-08 A kind of accurate ventilation unit in local for the cooling of milch cow cervical region

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2813770C2 (en) * 2022-06-27 2024-02-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный аграрный университет имени И.Т. Трубилина" Device for regulating microclimate in livestock building

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111280071B (en) * 2020-03-31 2022-01-04 浙江江宇电机有限公司 Culture room and monitoring method for culture room
CN111374058B (en) * 2020-03-31 2022-01-04 浙江江宇电机有限公司 Air supply device for culture room, culture room and monitoring method for culture room

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002223652A (en) * 2001-01-31 2002-08-13 National Agricultural Research Organization Method for moderating hot environment for cow on stole by local ventilation
NL1018146C2 (en) * 2001-05-23 2002-12-03 Lely Entpr Ag Device for cooling a dairy animal, such as a cow.
CN2604869Y (en) * 2003-03-14 2004-03-03 关伯平 Raising shed incorporated with cold-hot ventilating system
CN1633843A (en) * 2003-12-31 2005-07-06 西南农业大学 Microcomputer automatically controlled spraying and temperature-lowering device for livestocks
CN101268760A (en) * 2008-05-21 2008-09-24 中国农业大学 Cooling device for barnyard
CN103004612B (en) * 2012-12-31 2014-04-16 中国农业大学 Targeted ventilation device for relieving heat stress of cows
CN103499131A (en) * 2013-08-22 2014-01-08 苏州安科众达净化科技有限公司 Improved indoor ventilation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2813770C2 (en) * 2022-06-27 2024-02-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный аграрный университет имени И.Т. Трубилина" Device for regulating microclimate in livestock building

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