CN104756877A - Jet-flow type peaked end ventilation system for dairy cow house - Google Patents
Jet-flow type peaked end ventilation system for dairy cow house Download PDFInfo
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- CN104756877A CN104756877A CN201510104188.9A CN201510104188A CN104756877A CN 104756877 A CN104756877 A CN 104756877A CN 201510104188 A CN201510104188 A CN 201510104188A CN 104756877 A CN104756877 A CN 104756877A
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- kuppe
- bendable
- ventilating system
- jetting type
- air outlet
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Abstract
The invention belongs to the field of livestock farming and in particular relates to a jet-flow type peaked end ventilation system for ventilating and cooling a dairy cow house. The system comprises a centrifugal fan (2), an air baffle plate (3), a peaked end air outlet (4), a separator (5), a bent air guide sleeve (6) and a ventilation box (7), wherein the centrifugal fan (2) is located inside the ventilation box (7) and fixedly connected with the ventilation box (7); the bent air guide sleeve (6) is arranged on the same side of the fan air outlet (9) of the centrifugal fan (2); the peaked end air outlet (4) is located at the tail end of the bent air guide sleeve (6); the upper surface of the bent air guide sleeve (6) is inclined downwards; the peaked end air outlet (4) is inclined downwards; the lower surface of the bent air guide sleeve (6) is bent by two sections; the bent air guide sleeve (6) is longitudinally divided into three equal parts by the air baffle plate (3); the separator (5) is capable of transversely and equally dividing the bent air guide sleeve (6). The range of the whole ventilation system can be 20-24m; the air speed of the peaked end outlet and the air speed of the same point in the house both are increased, and the heat stress of the dairy cows can be effectively relieved.
Description
Technical field
The invention belongs to livestock and poultry cultivation field, be particularly used for the remote jetting type point mouth ventilating system that cow house is aeration-cooling a kind of summer.
Background technology
At present, the quality of livestock and poultry cultivation environment receives the concern of countries in the world, and wherein milk cattle cultivating environment is particularly important.Flourish along with milk industry, the quality of its breeding environment plays a very important role in whole agricultural development.Summer, China's overwhelming majority area meeting continuous high temperature, and high temperature can cause heat stress to milk cow, significantly reduce the feed intake of milk cow, milk yield, and affect health and the fertility of milk cow, therefore, summer to milk cow carry out effective temperature-reducing alleviate heat stress most important.At present, the method improving cow heat stress mainly contains: 1, reduce solar radiation, as: build shade structures at milk cow sports ground; 2, temperature in house is reduced, as: mist cooling, spray-fan for cooling, wet curtain-blower fan cooling etc.Cow feeding, the most of the time such as to couch all carry out in cowshed, and thus in house, cooling is more obvious to the effect reducing cow heat stress.
Present stage, the building structure of cow house is generally 6m depth span, the long 100 ~ 200m of depth of whole cowshed.The common flow-disturbing blower fan range that cow house is conventional is 8 ~ 10m, also has inventor to design a kind of pusher ventilating system, the range of ventilating system can be extended to 18 ~ 20m.But for the cow house that depth is very large, the range of ventilating system is far away, the blower fan quantity of use is fewer, and the energy consumption that whole system is saved is also more.Under the prerequisite meeting cow heat stress relief, improve form and the range of ventilating system as much as possible, initial stage input cost and the operating cost in later stage of milk cattle cultivating can be saved in large quantities.
Compared to patent application 201410791038.5, name is called ' a kind of push type for cow house twitch one's mouth ventilating system ', the range of jetting type point mouth ventilating system of the present invention is farther, the air outlet of sharp-mouth type is not only longitudinally carrying out channel partition, also from laterally dividing, gas channel is separated more even, also add air velocity while exit flow is more stable, thus more improve the range of ventilating system.For the cow house of depth very large (length is very large), the increase of ventilating system range, directly can reduce the usage amount of blower fan, to reduce energy consumption.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one and be used in cowshed the district or couch in district of searching for food, summer can available ventilation, cooling, cow heat stress relief the long-range point of the jetting type for cow house mouth ventilating system.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of point of the jetting type for cow house mouth ventilating system, comprise centrifugal blower 2, deep bead 3, sharp mouth air outlet 4, demarcation strip 5, bendable kuppe 6 and ventilation casing 7, wherein, it is inner that described centrifugal blower 2 is positioned at ventilation casing 7, be fixedly connected with ventilation casing 7, the air inlet 8 of centrifugal blower 2 is positioned at the side of ventilation casing 7, and described bendable kuppe 6 is arranged in the homonymy of the fan outlet 9 of centrifugal blower 2, is fixedly connected with ventilation casing 7; Described sharp mouth air outlet 4 is positioned at the end of bendable kuppe 6; Wherein:
Described deep bead 3 is fixedly connected with bendable kuppe 6, and bendable kuppe 6 is longitudinally divided into three passages; Described demarcation strip 5 is fixedly connected with bendable kuppe 6, and bendable kuppe 6 is laterally divided into two passages;
Described bendable kuppe 6 upper surface is downward-sloping, is α with the angle of the vertical plane of ventilation casing 7; Described sharp mouth air outlet 4 is tilted to down, is β with the angle of bendable kuppe 6 upper surface; Described bendable kuppe 6 lower surface is two sections of bendings, and wherein, one section near sharp mouth air outlet 4 is leading portion, and leading portion is horizontal segment; One section near ventilation casing 7 is back segment, and back segment is downward-sloping relative to horizontal segment, and the inclination angle of back segment is γ.
The angle α of the vertical plane of described bendable kuppe 6 upper surface and ventilation casing 7 is 70 ~ 75 °; Described sharp mouth air outlet 4 is 70 ~ 75 ° with the angle β of bendable kuppe 6 upper surface; The inclination angle γ of the back segment of described bendable kuppe 6 lower surface is 2 ~ 6 °.
Described bendable kuppe 6 upper surface length L1 is 1.05 ~ 1.25m; Described sharp mouth air outlet 4 width L2 is 0.2 ~ 0.3m; The length L3 of described bendable kuppe 6 lower surface leading portion is less than the length L4 of bendable kuppe 6 lower surface back segment.
L3 is 0.4 ~ 0.6m, L4 is 0.45 ~ 0.65m.
The lift of described centrifugal blower 2 is 22 ~ 26m, and the range of jetting type point mouth ventilating system 1 is 20 ~ 24m.
Arrange multiple jetting type point mouth ventilating system 1 in cowshed along the same direction of depth, the spacing of each jetting type point mouth ventilating system 1 is 20 ~ 24m, and setting height(from bottom) is 2.3 ~ 2.8m apart from the distance on cowshed ground 13.
Beneficial effect of the present invention is:
1, the more original ventilating system of the present invention is compared, the lift of centrifugal blower is significantly improved, be aided with jetting type point mouth air outlet again, the range of whole ventilating system is made to reach 20 ~ 24m, the wind speed of point mouth outlet and the wind speed of the interior same point of house all increase, because the range of this sharp mouth ventilating system is distant, the blower fan quantity needed in cowshed obviously reduces, and avoids the waste of resource.
2, air-supply passage is separated by the bendable kuppe of ventilating system, deep bead and demarcation strip, be aided with sharp-mouth type air outlet again, with the upper surface that bendable kuppe tilts, the air-flow that air-supply is exported has the dive angle of 25 ~ 30 °, wind speed control is approximately fan-shaped and evenly, adds the range of effective wind speed.
3, because range mouth outlet jet far away, the sharp effect of centrifugal blower in jetting type point mouth ventilating system makes flow field wind speed improve further, when milk cow is in slight heat stress, the wind speed of ventilating system can reach the effect of cooling completely, and spray equipment is opened again when milk cow is in severe heat stress, the use delaying spray equipment can more reasonably utilize and saving water resource, the generation reducing sewage, can also reach good cooling-down effect simultaneously.
4, structure of the present invention is simple, jetting type point mouth ventilating system and spray equipment adopt the mode of intersecting to arrange, the air-flow of point mouth ventilating system is consistent with the spray jet direction of spray equipment, the drop of spray is directly sprayed on Contents in Cows by blower fan, due to the effect of jet, spray water droplet not only can penetrate the fur layer of Niu Tibiao and through skin surface, certain spraying intensity can also be had, the crushing effect of water droplet and the spray regime of water droplet are obtained for and improve and improve, more effectively alleviate the heat stress of milk cow.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the jetting type point mouth ventilating system of cow house.
Fig. 2 is the front view of the present invention for the jetting type point mouth ventilating system of cow house.
Fig. 3 is that the present invention arranges schematic top plan view for the cowshed of the jetting type point mouth ventilating system of cow house.
Fig. 4 is that the present invention arranges schematic diagram for the section of the jetting type point mouth ventilating system of cow house.
Reference numeral
1 jetting type point mouth ventilating system 2 centrifugal blower
The sharp mouth air outlet of 3 deep bead 4
5 demarcation strip 6 bendable kuppes
7 ventilation casing 8 air inlets
9 fan outlet 10 cowshed roofs
11 cowshed column 12 mounting suspensions
Blow air-flow in 13 cowshed ground 14
15 spray equipment 16 spray pipings
17 shower nozzle 18 jet flow current
L1 bendable kuppe upper surface length L2 point mouth air outlet width
L3 bendable kuppe lower surface leading portion L4 bendable kuppe lower surface back segment
The length of length
α bendable kuppe upper surface and case β point mouth air outlet and bendable water conservancy diversion
The angle of the angle cover upper surface of the vertical plane of body
γ bendable kuppe lower surface back segment
Inclination angle
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but not as limit.
Fig. 1 is the structural representation of jetting type point mouth ventilating system in the present invention; Fig. 2 is the front view of jetting type point mouth ventilating system in the present invention; Fig. 3 is that schematic diagram arranged by the cowshed of jetting type point mouth ventilating system in the present invention; Fig. 4 is that the section of jetting type point mouth ventilating system in the present invention arranges schematic diagram.
As shown in Figure 1, the point of the jetting type for cow house mouth ventilating system 1 of the present invention comprises centrifugal blower 2, deep bead 3, sharp mouth air outlet 4, demarcation strip 5, bendable kuppe 6 and ventilation casing 7.
It is inner that centrifugal blower 2 is positioned at ventilation casing 7, be fixedly connected with ventilation casing 7, the air inlet 8 of centrifugal blower 2 is positioned at the side of ventilation casing 7, bendable kuppe 6 is arranged in the homonymy of the fan outlet 9 of centrifugal blower 2, bendable kuppe 6 is fixedly connected with ventilation casing 7, and sharp mouth air outlet 4 is positioned at the end of bendable kuppe 6.Described deep bead 3 is fixedly connected with bendable kuppe 6, and bendable kuppe 6 is longitudinally divided into three passages; Demarcation strip 5 is fixedly connected with bendable kuppe 6, and bendable kuppe 6 is laterally divided into two passages; Like this, bendable kuppe 6 is divided into six passages from horizontal, vertical both direction by deep bead 3 and demarcation strip 5, and then the wind speed in the exit of sharp mouth air outlet 4 is evenly improved.
As shown in Figure 2, described bendable kuppe 6 upper surface is downward-sloping, is 70 ~ 75 ° with the angle α of the vertical plane of ventilation casing 7; Point mouth air outlet 4 is tilted to down, and the angle β of itself and bendable kuppe 6 upper surface is 70 ~ 75 °; The lower surface of described bendable kuppe 6 is two sections of bendings, and wherein, one section near sharp mouth air outlet 4 is leading portion, and leading portion is horizontal segment; One section near ventilation casing 7 is back segment, and back segment is downward-sloping relative to horizontal segment, and the inclination angle γ of back segment is 2 ~ 6 °.Described bendable kuppe 6 upper surface length L1 is 1.05 ~ 1.25m; Point mouth air outlet 4 width L2 is 0.2 ~ 0.3m; The length L3 of bendable kuppe 6 lower surface leading portion is less than the length L4 of bendable kuppe 6 lower surface back segment, wherein, the length L3 of bendable kuppe 6 lower surface leading portion is 0.4 ~ 0.6m, and the length L4 of bendable kuppe 6 lower surface back segment is 0.45 ~ 0.65m.
As shown in Figure 3, the lift of centrifugal blower 2 is at 22 ~ 26m, after overcoming SR and air drag, the range of jetting type point mouth ventilating system 1 is 20 ~ 24m, due to far firing range, the air output of four depth length can be met in the cowshed of a 6m depth length, thus reduce initial stage input cost and the operating cost of whole cowshed ventilating system.
As shown in Figure 4, cowshed column 11 is the supporting construction of cowshed, is fixedly connected with cowshed roof 10.Described jetting type point mouth ventilating system 1 is suspended in cowshed, and its two ends are fixedly connected with cowshed roof 10 by mounting suspension 12, can ensure that jetting type point mouth ventilating system 1 operationally remains stable like this, not swing back and forth.In cowshed, arrange multiple jetting type point mouth ventilating system 1 along the same direction of depth, each jetting type point mouth ventilating system 1 spacing is 20 ~ 24m, and setting height(from bottom) is 2.3 ~ 2.8m apart from the distance on cowshed ground 13.
In addition, as shown in Figure 4, all right and spray equipment 15 associated working of described jetting type point mouth ventilating system 1.Described spray equipment 15 comprises spray piping 16 and shower nozzle 17, shower nozzle 17 is fixedly connected with spray piping 16, spray piping 16 arranges 1 shower nozzle 17 at interval of 1.0 ~ 1.2m, the spray angles of shower nozzle 17 is 120 ~ 135 °, the position that the head, neck, back etc. that make the water droplet sprayed can deliver to milk cow need be lowered the temperature.Spray piping 16 is arranged along the depth direction of cowshed, with cowshed column 11 support and connection, be installed on the neck cangue 0.5 ~ 1.0m of distance ox, apart from highly about 2.5m place, cowshed ground 13, the opening time of spray equipment 15 and cycle are determined according to the data such as temperature, relative moisture in the meteorological condition in milk cattle cultivating area and house.
As shown in Figure 4, when jetting type point mouth ventilating system 1 of the present invention and spray equipment 15 associated working: wind enters the air inlet 8 of centrifugal blower 2, blow out from the fan outlet 9 of centrifugal blower 2, through bendable kuppe 6 and deep bead 3 and demarcation strip 5, send from sharp mouth air outlet 4, form air-supply air-flow 14, average outlet wind speed is at 8.0 ~ 18.0m/s.While jetting type point mouth ventilating operation, water flows in spray piping 16, sprays through shower nozzle 17, forms spray water flow 18.Air-supply air-flow 14 is in air-supply process, and meeting fragmentation also carries part spray water droplet, delivers to milk cow body surface, is lowered the temperature simultaneously, alleviate the heat stress of milk cow by the evaporation realization of milk cow body surface.
Because the far firing range of jetting type of the present invention point mouth ventilating system 1, wind speed are high, when milk cow is in slight heat stress time, spray equipment 15 temporary close, can realize cooling-down effect by means of only jetting type point mouth ventilating system 1, thus reach energy-conservation and object that is saving water resource.
Claims (6)
1. the point of the jetting type for a cow house mouth ventilating system, comprise centrifugal blower (2), deep bead (3), point mouth air outlet (4), demarcation strip (5), bendable kuppe (6) and ventilation casing (7), wherein, it is inner that described centrifugal blower (2) is positioned at ventilation casing (7), be fixedly connected with ventilation casing (7), the air inlet (8) of centrifugal blower (2) is positioned at the side of ventilation casing (7), described bendable kuppe (6) is arranged in the homonymy of the fan outlet (9) of centrifugal blower (2), be fixedly connected with ventilation casing (7), described sharp mouth air outlet (4) is positioned at the end of bendable kuppe (6), it is characterized in that:
Described deep bead (3) is fixedly connected with bendable kuppe (6), and bendable kuppe (6) is longitudinally divided into three passages; Described demarcation strip (5) is fixedly connected with bendable kuppe (6), and bendable kuppe (6) is laterally divided into two passages;
Described bendable kuppe (6) upper surface is downward-sloping, is α with the angle of the vertical plane of ventilation casing (7); Described sharp mouth air outlet (4) is tilted to down, is β with the angle of bendable kuppe (6) upper surface; Described bendable kuppe (6) lower surface is two sections of bendings, and wherein, one section near sharp mouth air outlet (4) is leading portion, and leading portion is horizontal segment; One section near ventilation casing (7) is back segment, and back segment is downward-sloping relative to horizontal segment, and the inclination angle of back segment is γ.
2., as claimed in claim 1 for the jetting type point mouth ventilating system of cow house, it is characterized in that: the angle α of the vertical plane of described bendable kuppe (6) upper surface and ventilation casing (7) is 70 ~ 75 °; Described sharp mouth air outlet (4) is 70 ~ 75 ° with the angle β of bendable kuppe (6) upper surface; The inclination angle γ of the back segment of described bendable kuppe (6) lower surface is 2 ~ 6 °.
3., as claimed in claim 1 for the jetting type point mouth ventilating system of cow house, it is characterized in that: described bendable kuppe (6) upper surface length L1 is 1.05 ~ 1.25m; Described sharp mouth air outlet (4) width L2 is 0.2 ~ 0.3m; The length L3 of described bendable kuppe (6) lower surface leading portion is less than the length L4 of bendable kuppe (6) lower surface back segment.
4., as claimed in claim 3 for the jetting type point mouth ventilating system of cow house, it is characterized in that: L3 is 0.4 ~ 0.6m, L4 is 0.45 ~ 0.65m.
5. the point of the jetting type for the cow house mouth ventilating system as described in one of claim 1-4, it is characterized in that: the lift of described centrifugal blower (2) is 22 ~ 26m, the range of jetting type point mouth ventilating system (1) is 20 ~ 24m.
6. the point of the jetting type for the cow house mouth ventilating system as described in one of claim 1-4, it is characterized in that: in cowshed, arrange multiple jetting type point mouth ventilating system (1) along the same direction of depth, the spacing of each jetting type point mouth ventilating system (1) is 20 ~ 24m, and setting height(from bottom) is 2.3 ~ 2.8m apart from the distance of cowshed ground (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104188.9A CN104756877B (en) | 2015-03-10 | 2015-03-10 | Jet-flow type peaked end ventilation system for dairy cow house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104188.9A CN104756877B (en) | 2015-03-10 | 2015-03-10 | Jet-flow type peaked end ventilation system for dairy cow house |
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| CN104756877A true CN104756877A (en) | 2015-07-08 |
| CN104756877B CN104756877B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510104188.9A Active CN104756877B (en) | 2015-03-10 | 2015-03-10 | Jet-flow type peaked end ventilation system for dairy cow house |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975646A (en) * | 2017-03-31 | 2017-07-25 | 浙江华庆元生物科技有限公司 | The aeration-cooling device of organic waste microbial processor |
| CN110934073A (en) * | 2019-12-20 | 2020-03-31 | 塔里木大学 | Large-scale cow breeding system |
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| CN104315688A (en) * | 2014-09-30 | 2015-01-28 | 西安建筑科技大学 | Personalized energy-saving air supply device used for sleeping posture |
| CN104315690A (en) * | 2014-09-30 | 2015-01-28 | 西安建筑科技大学 | Personalized energy-saving air supply device used for sitting posture |
| CN204466530U (en) * | 2015-03-10 | 2015-07-15 | 中国农业大学 | A kind of sharp mouth ventilating system for cow house |
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2015
- 2015-03-10 CN CN201510104188.9A patent/CN104756877B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SE0802213A1 (en) * | 2008-10-17 | 2010-04-18 | Sveaverken Ab | Method and system for controlling operating temperature |
| CN103004612A (en) * | 2012-12-31 | 2013-04-03 | 中国农业大学 | Targeted ventilation device for relieving heat stress of cows |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106975646A (en) * | 2017-03-31 | 2017-07-25 | 浙江华庆元生物科技有限公司 | The aeration-cooling device of organic waste microbial processor |
| CN110934073A (en) * | 2019-12-20 | 2020-03-31 | 塔里木大学 | Large-scale cow breeding system |
| CN110934073B (en) * | 2019-12-20 | 2021-06-29 | 塔里木大学 | Large-scale cow breeding system |
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| CN104756877B (en) | 2017-05-17 |
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