CN102630572A - Winter ventilation and heat-preservation system of window type animal house - Google Patents
Winter ventilation and heat-preservation system of window type animal house Download PDFInfo
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- CN102630572A CN102630572A CN2012100836828A CN201210083682A CN102630572A CN 102630572 A CN102630572 A CN 102630572A CN 2012100836828 A CN2012100836828 A CN 2012100836828A CN 201210083682 A CN201210083682 A CN 201210083682A CN 102630572 A CN102630572 A CN 102630572A
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Abstract
The invention discloses a winter ventilation and heat-preservation system of a window type animal house and relates to the field of livestock raising engineering. In the system, wall bodies comprises a south wall, a north wall, an east wall and a west wall; the wall bodies and a ceiling are of heat-preservation structures; the ceiling and the upper parts of the wall bodies are connected to form a closed space; windows are arranged on the west wall and the north wall; air inlets are arranged on the south wall or are simultaneously arranged on the south wall and the north wall, and are arranged at the upper parts of the wall bodies and below the ceiling; an air exhausting opening passes through the ceiling; and a hot air pipe is arranged on the wall bodies below the air inlets. The wall bodies and the ceiling of the system are of the energy-saving and heat-preservation structures, and a door and the windows are closed and not ventilated, so that the temperature in the house can be effectively kept and heat supply energy consumption is reduced; the air inlets are arranged at the upper parts of the wall bodies and a flow guide plate and the hot air pipe are arranged below the air inlets in a matched manner, so that fresh air entering the animal house is effectively pre-heated and then reaches the bodies of domestic animals; and therefore the cold stress of the domestic animals is avoided and the morbidity of the domestic animals is reduced.
Description
Technical field
The present invention relates to the herding field of engineering technology, the warming system of particularly a kind of winter ventilation of fenestrate formula animal house.
Background technology
Winter, the animal house temperature was an of paramount importance environmental factor in the Livestock Production, was example to raise pigs, and the quality of temperature adjusting has often directly determined the height of Swine Production level.Temperature in the pig house is not only provided by heating equipment in the pig house, and closely related with the heat-insulating property of pig house building external envelope structure, the pig house of peripheral structure heat-insulating property difference maybe heating energy consumption greatly and in the pig house temperature still not high enough.At present the general heat-insulating property of peripheral structure of the most of pig house of northern China is very poor, and temperature is not high enough in the pig house, heating energy consumption is very high, causes deficiency in draught etc. all relevant with the peripheral structure heat-insulating property difference of pig house in order to keep in the pig house temperature.
The building type of the most of weanling pig house of north China is fenestrate formula pig house at present, and the window of fenestrate formula pig house is the indispensability structure of pig house natural lighting on daytime and gravity-flow ventilation in summer.Daylighting uses the window majority to be sliding window, casement window; The temperature of many producers in order to guarantee to reach certain in the pig house closes door and window for reducing temperature decline or energy efficient, only depends on the infiltration of door and window slit to ventilate; Period noon on daytime is opened small door and window gap ventilation sometimes; Because of the gap position of common daylighting window by down, cold wind is easy to directly sink to the swinery position after penetrating into pig house through the window slit, causes the piglet cold stress.
Though the requirement that force ventilation that pig house winter is independent or heat recovery draft type can satisfy ventilation; But if will satisfy the requirement of temperature in the house; Whole house ventilation energy consumption is very big, and the ventilation equipment initial investment and the operating cost of force ventilation configuration are all higher, during force ventilation; Because of air humidity in the pig house is bigger, the situation that air inlet or the short circuit of exhaust outlet motor burn out is more.Existing livestock and poultry central air-conditioning is mainly used in the heat supply in winter of animal house; Majority is not considered winter ventilation; Even advance a small amount of new wind from the blower fan position; But still do not reduce energy consumption, improve temperature in the house from the heat preservation energy-saving aspect of the peripheral structure that improves animal house, and blower fan to be installed in the animal house noise bigger, to need in the pig house to increase investment in fixed assets in addition be that blower fan provides independent house if be not installed in.
Publication number is that the gravity-flow ventilation window of the pig house in the utility model patent " a kind of gravity-flow ventilation pig house " of CN201758653U is the vertical sliding window that draws up and down; During winter; To vertically slide and draw window from one section of top unlatching; Cold air gets in the house from the window top; But in the cold period of northern area, sliding draw window may be when the outer temperature of house be very low because of pig house in air humidity cause the window dewfall to be frozen being difficult for sliding drawing greatly, and if above window, get into cold air in the house does not have steam heating pipe after getting into the piglet house preheating; Still the not high enough piglet cold stress that causes of temperature in the time of possibly arriving the piglet position, and this patent is only considered the ventilation of pig house and is not considered the warming of pig house.Publication number is the air inlet scheme that the patent " the perflation ventilation pipe that is used for animal house " of CN102187818A only discloses animal house, and does not consider animal house winter environment control system from the warming of animal house with ventilating comprehensively.Publication number is that the patent " pig house ventilating system " of CN201308036Y is only considered to ventilate, and does not consider that also pig house is warming, and the piglet house winter ventilation that can not directly be used for northern heating area is warming.Facilities such as the quality of pig house winter environment control and the ventilation of pig house are warming are closely related, and prior art all is to deal with problems from single aspect.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the present invention will solve is: the warming system of winter ventilation how a kind of fenestrate formula animal house is provided; When satisfying the winter ventilation amount; Reduce cold stress in the time of making fresh air arrive the domestic animal body part again; When improving animal house winter air environmental quality, can save energy reduction of discharging again, reduce the heat supply in winter energy consumption and reduce CO2 emission, improve the Livestock Production level.
(2) technical scheme
For solving the problems of the technologies described above, the present invention provides a kind of winter ventilation of fenestrate formula animal house warming system, and it comprises: body of wall, ceiling, window, air inlet, exhaust outlet and steam heating pipe;
Said body of wall adopts insulation construction, comprising: Nan Qiang, north wall, Dong Qiang and Xi Qiang;
Said ceiling adopts insulation construction, links to each other with the top of said body of wall to constitute enclosure space;
Said window adopts insulation construction, is arranged on said Nan Qiang and the said north wall;
Said air inlet is arranged on the said Nan Qiang, perhaps is arranged on simultaneously on said Nan Qiang and the said north wall; Said air inlet is positioned at the top of said body of wall, and below said ceiling;
Said exhaust outlet passes said ceiling;
Said steam heating pipe is arranged on body of wall one side that offers said air inlet, and is arranged on the below of said air inlet.
Preferably, said system also comprises: deflector; Said deflector is arranged on the inboard of said air inlet; The body of wall of the lower end of said deflector and said air inlet below flexibly connects, and the angle between the body of wall of said deflector and said air inlet below is adjustable in 0～90 ° of scope.
Preferably, said system also comprises: bird prevention net and deep bead; Said bird prevention net is arranged on the outside of air inlet, is connected with the body of wall that offers said air inlet; Said deep bead is arranged on the outside of said bird prevention net, and has preset distance between the said bird prevention net, and is connected with said body of wall.
Preferably, said air inlet is made up of the brick hole and/or the boring that are arranged on the said body of wall, and said brick hole and/or bore quantity be 1 perhaps a plurality of.
Preferably, the area of said air inlet and said exhaust outlet combines hot pressing ventilation Theoretical Calculation to confirm according to said fenestrate formula animal house required Maximum Ventilatory Volume in winter.
Preferably, said exhaust outlet adopts the gravity-flow ventilation blast cap, and is provided with the insulation butterfly valve in the bottom of said gravity-flow ventilation blast cap.
Preferably, said body of wall comprises from the outside to the inboard successively: the polymer mortar layer, hot-galvanized steel silk screen layer, rock cotton board boundary mortar layer, rock wool flaggy and the brick wall layer that include alkaline-resisting plastic-coated glass fiber reticular cloth.
Preferably, said system also comprises: the roof; Said roof is arranged on the top of said body of wall and said ceiling, and the longitudinal section is a triangle; Said roof is passed on the top of said exhaust outlet.
Preferably, said system also comprises the door that is arranged on the said Nan Qiang.
Preferably, said window is the single window of double-deck plastic-steel window or outer side mounting heat-preservation cotton quilt.
(3) beneficial effect
The warming system of the winter ventilation of fenestrate formula animal house of the present invention, its body of wall and ceiling all adopt the energy-saving heat preserving structure, and door and window can seal stuffy, can effectively keep giving up interior temperature, reduces heating energy consumption; Top at said body of wall is provided with air inlet; Below air inlet, be equipped with deflector and steam heating pipe, can when effectively guaranteeing ventilation, make the new wind that gets into animal house after effective preheating, arrive the body part of domestic animal; Avoid the domestic animal cold stress, reduce the domestic animal incidence of disease.
Description of drawings
Fig. 1 is the side sectional view of the warming system of winter ventilation of first kind of described fenestrate formula animal house of embodiment of the present invention;
Fig. 2 is the front view of the warming system of winter ventilation of first kind of described fenestrate formula animal house of embodiment of the present invention;
Fig. 3 is the front view of the warming system of winter ventilation of second kind of said fenestrate formula animal house of embodiment of the present invention;
Fig. 4 is the front view of the warming system of winter ventilation of the said fenestrate formula animal house of the third embodiment of the present invention;
Fig. 5 is the front view of the warming system of winter ventilation of the 4th kind of said fenestrate formula animal house of embodiment of the present invention;
Fig. 6 is the front view of the warming system of winter ventilation of the 5th kind of said fenestrate formula animal house of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
The warming system of the winter ventilation of fenestrate formula animal house according to the invention is applicable to multiple animal houses such as pig house, calf house, rabbit house, and for simplicity, hereinafter only is that example describes with the pig house.
Fig. 1 is the side sectional view of the warming system of winter ventilation of first kind of described fenestrate formula animal house of embodiment of the present invention; Fig. 2 is the front view of the warming system of winter ventilation of first kind of described fenestrate formula animal house of embodiment of the present invention.In conjunction with illustrated in figures 1 and 2, said system comprises: air inlet 1, exhaust outlet 2, window 3, body of wall 4, deep bead 5, bird prevention net 6, ceiling 7, steam heating pipe 8, deflector 9, roof 10 and door 11.
The said pig house of present embodiment is positioned at suburb, Beijing, sits in the north facing the south, and overall dimension is 12.36m * 5m, and said body of wall 4 further is divided into: Nan Qiang, north wall, Xi Qiang and Dong Qiang.In order to improve the heat-insulating property of said pig house; Said body of wall adopts insulation construction, comprises successively from the outside to the inboard: thick polymer mortar layer, hot-galvanized steel silk screen layer, rock cotton board boundary mortar layer, the thick rock wool flaggy of 90mm and the thick brick wall layer of 240mm that includes alkaline-resisting plastic-coated glass fiber reticular cloth of 5mm.
Said ceiling 7 links to each other with the top of said body of wall 4 and constitutes enclosure space, and combustibilities such as said ceiling 7 preferred employing rock wools are the fire-retardant heat-insulation material of A level, and its thickness is preferably 90mm.In order to improve heat-insulating property, said ceiling 7 adopts insulation construction, such as two-layer insulation material being set and being provided with sandwich.
Said roof 10 is arranged on the top of said body of wall 4 and said ceiling 7, and its longitudinal section is triangular in shape, adopts materials such as chromatic steel sandwich plate or tile roof.
Said roof 10 is stretched out in the upper end of said exhaust outlet 2, and said ceiling 7 is stretched out in the lower end.Said exhaust outlet 2 adopts the gravity-flow ventilation blast cap, and is provided with the insulation butterfly valve in the bottom of said gravity-flow ventilation blast cap.The gross area of said exhaust outlet 2 is identical with the gross area of said air inlet 1.
Said window 3 is of a size of 0.8m (height) * 1.2m (wide); And said window 3 also adopts insulation construction; Be specially the single window of double-deck plastic-steel window or outer side mounting heat-preservation cotton quilt; During the individual layer plastic-steel window of side mounting heat-preservation cotton quilt, can be started said heat-preservation cotton daytime outside adopting, and put down evening.In the present embodiment, said Nan Qiang is provided with 3 said windows 3, and north wall is provided with 4 said windows 3, and the lower edge of said window 3 is 0.8m to the distance of said pig house internal ground.
Said door 11 is of a size of 0.9m (wide) * 1.9m (height), is arranged on the said Nan Qiang, the galvanized steel plain sheet of folder rock wool material in its material can adopt.
Said air inlet 1 is arranged on said Nan Qiang and the said north wall, adopts boring or brick hole.When said air inlet 1 is set, preferably adopt the brick hole on newly-built pig house; When said air inlet 1 is set, preferably adopt boring on old pig house.Each said air inlet 1 is of a size of 60mm * 120mm, and the distance between adjacent two said air inlets is 120mm.In the present embodiment, on said Nan Qiang and said north wall, be symmetrical set 15 said air inlets 1 respectively, the gross area is 0.216m
2Shown in the southern wall as shown in Figure 2,15 said air inlets 1 are 3.48m from starting point length to terminal.The position of said air inlet 1 is above said window 3.
Need to prove that in concrete the application, the gross area of said air inlet 1 and said exhaust outlet 2 combines hot pressing ventilation Theoretical Calculation to confirm according to said fenestrate formula animal house required Maximum Ventilatory Volume in winter.In the present embodiment, supposing has 13 swinerys in each pig house, 9 weanling pigs of each swinery stable breeding, and body weight was 7kg/ head and 20kg/ head when weanling pig changed over to and produces, and giving up outer temperature is-9 ℃, and giving up outer temperature is 23 ℃, and pig required ventilation in winter is 0.3m
3/ (h.kg), then this pig house required Maximum Ventilatory Volume in winter is 13 * 9 * 20kg/ head * 0.3m
3/ (h.kg)=702m
3/ h.When adopting gravity-flow ventilation, in order to guarantee the effect of gravity-flow ventilation, when Practical Calculation, only consider the effect of hot pressing, blast is not generally considered.When hot pressing was ventilated, the area computing formula of air inlet and exhaust outlet was respectively:
In the formula:
F
Advance, F
RowThe area of representing air inlet and exhaust outlet respectively, the m of unit
2
G
Advance, G
RowThe air quantity of representing air inlet and exhaust outlet respectively, units/s;
μ
a, μ
bRepresent the discharge coefficient of air inlet and exhaust outlet respectively, get 0.6;
ρ
wThe density of expression house outer air, units/m
3, when temperature was-9 ℃ outside house, atmospheric density was 1.303kg/m
3
ρ
nAtmospheric density in the expression house under the mean temperature, units/m
3, when temperature was 23 ℃ outside house, atmospheric density was 1.154kg/m
3
ρ
pAtmospheric density under the temperature of outgoing air of expression top, kg/m
3
h
1, h
2The distance of representing neutral plane to air inlet and exhaust outlet respectively, the m of unit.
According to air quality equilibrium equation, G
Advance=G
Row, approximate think μ
Advance≈ μ
Row=0.6, ρ
w=ρ
p
Suppose that neutral plane is positioned at the centre position of air inlet and exhaust outlet, then according to formula (1) and (2), air-admitting surface and exhaust outlet area equate, position that also can be through moving neutral plane is unequal with the area design of air inlet and exhaust outlet.In this enforcement, be to equate that the distance of air inlet and exhaust outlet is 2.0m, then h with air-admitting surface and exhaust outlet area design
1=h
2=1.0m.
The gross area that calculates required said air inlet 1 through formula (1) and formula (2) is 0.217m
2, to consider to exist in the practical application blast can quicken air and flow, the design of above-mentioned air inlet 1 meets the requirements.
Said deflector 9 is arranged on the inboard of said air inlet 1, and flexibly connects with the body of wall of said air inlet 1 below.Particularly, the angle between the body of wall of said deflector 9 and said air inlet 1 below can manual adjustments in 0 to 90 ° of scope.The length of said deflector 9 is greater than 3.48m, and width is greater than 60mm, so that close said air inlet 1 where necessary fully.When sky enclosed in the pig house, said deflector 9 capable of using was closed said air inlet 1, utilizes said insulation butterfly valve to close said exhaust outlet 2 simultaneously; When weanling pig just changed pig house over to, said deflector 9 capable of using was closed said air inlet 1, only depended on the unlatching size adjustment turnover air quantity of the insulation butterfly valve of regulating said exhaust outlet 2; When big the or outer temperature of house is not too low when the piglet age in days, the switch size of can different angles opening the insulation butterfly valve of said deflector 9 and said exhaust outlet 2.
Said steam heating pipe 8 adopts the fin tube type radiator, is arranged on the below of said deflector 9, preferably is arranged on the portion on the upper side of said body of wall simultaneously.After giving up outer cold air and getting in the house from said air inlet 1; Preheating through said steam heating pipe 8 and with house in hot-air mix heating; Give up when outer fresh air arrives the body part of a pig and reduced cold stress, and improved quality of air environment in the house, can reduce the piglet incidence of disease in winter piglet.Need to prove; The air that said steam heating pipe 8 is mainly used in getting into through said air inlet 1 carries out preheating; Therefore, in order to guarantee that effectively temperature is suitable in the said pig house, other heating equipments such as floor heating, radiator, fan coil are set simultaneously in said pig house preferably.
Said bird prevention net 6 is arranged on the outside of said air inlet 1, adopts plastic wire or wire netting, is connected with said body of wall, is used to prevent that flying bird from stopping up said air inlet 1 or getting into pig house.
Said deep bead 5 is arranged on the outside of said bird prevention net 6, and has preset distance between the said bird prevention net 6, and is connected with said body of wall.Said preset distance can be 10cm.Said deep bead 5 can be with said deflector 9 measure-alike.Said deep bead 5 can adopt plank, plastic plate or metallic plate.
Fig. 3 is the front view of the warming system of winter ventilation of second kind of said fenestrate formula animal house of embodiment of the present invention.As shown in Figure 3, said system of present embodiment and embodiment 1 are basic identical, and its difference only is; 15 said air inlets 1 on said Nan Qiang and the said north wall are divided into 3 groups; Every group 5, be distributed on the body of wall between the said window 3, the gross area of all said air inlets 1 is constant.Correspondingly, the length of said deflector 9 and said deep bead 5 should be lengthened to 15 said air inlets that can cover on every face wall body, perhaps said deflector 9 is divided into 3 groups with said deep bead 5.
Embodiment 3
Fig. 4 is the front view of the warming system of winter ventilation of the said fenestrate formula animal house of the third embodiment of the present invention.As shown in Figure 4; Said system of present embodiment and embodiment 1 are basic identical, and its difference only is that the said air inlet 1 on said Nan Qiang and the said north wall is elongated hole; Be arranged on the body of wall between two adjacent said windows 3, the gross area of all said air inlets 1 is constant.Correspondingly, the length of said deflector 9 and said deep bead 5 can suitably reduce.
Fig. 5 is the front view of the warming system of winter ventilation of the 4th kind of said fenestrate formula animal house of embodiment of the present invention.As shown in Figure 5; Said system of present embodiment and embodiment 1 are basic identical, and its difference only is that the said air inlet 1 on said Nan Qiang and the said north wall is two elongated holes; Be arranged on the body of wall between two adjacent said windows 3, the gross area of all said air inlets 1 is constant.Correspondingly, the length of said deflector 9 and said deep bead 5 should suitably be adjusted, and is as the criterion with all said air inlets 1 that can cover on every face wall body.
Embodiment 5
Fig. 6 is the front view of the warming system of winter ventilation of the 5th kind of said fenestrate formula animal house of embodiment of the present invention.As shown in Figure 6; Said system of present embodiment and embodiment 1 are basic identical, and its difference only is that the said air inlet 1 on said Nan Qiang and the said north wall is three elongated holes; Be arranged on the body of wall between two adjacent said windows 3, the gross area of all said air inlets 1 is constant.Correspondingly, the length of said deflector 9 and said deep bead 5 should suitably be adjusted, and is as the criterion with all said air inlets 1 that can cover on every face wall body.
Be provided with simultaneously on said Nan Qiang and the said north wall the said air inlet 1 except above-mentioned, those skilled in the art expect easily, and said air inlet 1 can also only be set on said Nan Qiang or north wall.At this moment, the gross area of all said air inlets 1 can be identical with the gross area of said exhaust outlet 2 or suitably be contracted to said exhaust outlet 2 the gross area 50%～70%.When dwindling the gross area of said air inlet 1, the gross area of said exhaust outlet 2 is still confirmed according to hot pressing ventilation Theoretical Calculation.
The warming system of winter ventilation of the said fenestrate formula animal house of the embodiment of the invention, its body of wall and ceiling all adopt the energy-saving heat preserving structure, and door, window can seal stuffy, can effectively keep giving up interior temperature, reduce heating energy consumption; Top at said body of wall is provided with air inlet; Below air inlet, be equipped with deflector and steam heating pipe, can when effectively guaranteeing ventilation, make the new wind that gets into animal house after effective preheating, arrive the body part of domestic animal; Avoid the domestic animal cold stress, reduce the domestic animal incidence of disease.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. the warming system of the winter ventilation of a fenestrate formula animal house is characterized in that, comprising: body of wall, ceiling, window, air inlet, exhaust outlet and steam heating pipe;
Said body of wall adopts insulation construction, comprising: Nan Qiang, north wall, Dong Qiang and Xi Qiang;
Said ceiling adopts insulation construction, links to each other with the top of said body of wall to constitute enclosure space;
Said window adopts insulation construction, is arranged on said Nan Qiang and the said north wall;
Said air inlet is arranged on the said Nan Qiang, perhaps is arranged on simultaneously on said Nan Qiang and the said north wall; Said air inlet is positioned at the top of said body of wall, and below said ceiling;
Said exhaust outlet passes said ceiling;
Said steam heating pipe is arranged on body of wall one side that offers said air inlet, and is arranged on the below of said air inlet.
2. the system of claim 1 is characterized in that, said system also comprises: deflector; Said deflector is arranged on the inboard of said air inlet; The body of wall of the lower end of said deflector and said air inlet below flexibly connects, and the angle between the body of wall of said deflector and said air inlet below is adjustable in 0～90 ° of scope.
3. the system of claim 1 is characterized in that, said system also comprises: bird prevention net and deep bead; Said bird prevention net is arranged on the outside of air inlet, is connected with the body of wall that offers said air inlet; Said deep bead is arranged on the outside of said bird prevention net, and has preset distance between the said bird prevention net, and is connected with said body of wall.
4. the system of claim 1 is characterized in that, said air inlet is made up of the brick hole and/or the boring that are arranged on the said body of wall, and said brick hole and/or bore quantity be 1 perhaps a plurality of.
5. the system of claim 1 is characterized in that, the area of said air inlet and said exhaust outlet combines hot pressing ventilation Theoretical Calculation to confirm according to said fenestrate formula animal house required Maximum Ventilatory Volume in winter.
6. the system of claim 1 is characterized in that, said exhaust outlet adopts the gravity-flow ventilation blast cap, and is provided with the insulation butterfly valve in the bottom of said gravity-flow ventilation blast cap.
7. the system of claim 1 is characterized in that, said body of wall comprises from the outside to the inboard successively: the polymer mortar layer, hot-galvanized steel silk screen layer, rock cotton board boundary mortar layer, rock wool flaggy and the brick wall layer that include alkaline-resisting plastic-coated glass fiber reticular cloth.
8. the system of claim 1 is characterized in that, said system also comprises: the roof; Said roof is arranged on the top of said body of wall and said ceiling, and the longitudinal section is a triangle; Said roof is passed on the top of said exhaust outlet.
9. the system of claim 1 is characterized in that, said system also comprises the door that is arranged on the said Nan Qiang.
10. like the described system of one of claim 1 to 9, it is characterized in that said window is the single window of double-deck plastic-steel window or outer side mounting heat-preservation cotton quilt.
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| CN2012100836828A CN102630572A (en) | 2012-03-27 | 2012-03-27 | Winter ventilation and heat-preservation system of window type animal house |
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| CN2012100836828A CN102630572A (en) | 2012-03-27 | 2012-03-27 | Winter ventilation and heat-preservation system of window type animal house |
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| CN102939908A (en) * | 2012-12-10 | 2013-02-27 | 东北农业大学 | Greenhouse-type calf house for cold areas |
| CN105028218A (en) * | 2015-06-30 | 2015-11-11 | 重庆丰兴源生态农业发展有限公司 | Constant-temperature pig house |
| CN105432483A (en) * | 2014-08-18 | 2016-03-30 | 广西银农畜牧集团有限责任公司 | Heat-preserving hog house |
| CN105432479A (en) * | 2014-08-18 | 2016-03-30 | 广西银农畜牧集团有限责任公司 | Automatic controlled environment hog house and environmental control method thereof |
| CN105432478A (en) * | 2014-08-18 | 2016-03-30 | 广西银农畜牧集团有限责任公司 | Breeding hog house |
| CN106172019A (en) * | 2015-04-30 | 2016-12-07 | 北京东石北美牧场科技有限公司 | One breeding house |
| CN109964822A (en) * | 2018-12-24 | 2019-07-05 | 汕尾宝山猪场有限公司 | A kind of pig house vertical ventilation system |
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Application publication date: 20120815 |