CN218353895U - Biological safety type livestock and poultry breeding house ventilation device and breeding house thereof - Google Patents

Abstract

The utility model relates to the technical field of livestock breeding, and discloses a biological safety type livestock breeding house ventilation device and a breeding house thereof, which comprises at least two layers of breeding houses, wherein the bottom of the breeding houses is alternately provided with an excrement ditch and a fresh air channel, the two sides right opposite to the breeding houses are respectively provided with an exhaust part and an air inlet part which are communicated with the breeding houses, the fresh air channel is communicated with the air inlet part, and the fresh air channel is provided with a plurality of fresh air holes which are communicated with the lower breeding houses; still include five layers at least and breed the floor, be equipped with biological safe formula beasts and birds in breeding the floor and breed the house ventilation unit, all breed the same of unit kind in the same breed floor. The patent of the utility model provides a breed among the prior art and breed the problem that ventilation unit structure is complicated and construction cost is high in the house.

Description

Biological safety type livestock and poultry breeding house ventilation device and breeding house thereof

Technical Field

The utility model relates to a livestock and poultry breeding technology field, concretely relates to biological safety formula livestock and poultry breeding house ventilation unit and breed house thereof.

Background

The technology of carrying out centralized breed in breeding the house is more and more popular, when concentrating the breed in breeding the house, in order to reduce the influence of external environment to breeding, set up breeding the house into relative confined state usually, and beasts and birds are bred in-process because the metabolism activity of beasts and birds, can produce a large amount of heats and steam to can continuously consume oxygen and produce harmful gas such as carbon dioxide, cause the gaseous composition in breeding the house to change and influence the breed of beasts and birds. Therefore, ventilation is used as an important means for regulating and controlling the environment of the breeding house, and fresh air is introduced into the breeding house, so that not only can dirty air in the house be discharged, but also redundant water vapor and redundant heat can be discharged, and the adverse effect of high temperature on livestock and poultry can be alleviated.

In the prior art, a chinese patent publication No. CN107047325a discloses an exhaust temperature adjusting method for an animal house, which comprises arranging a dung groove, a waste gas exhaust pipe, a temperature adjusting channel, a temperature equalizing channel, a vent hole and an inclined plate structure at the bottom of a house body, wherein the waste gas exhaust pipe is communicated with the dung groove and is positioned in the temperature adjusting channel, and the temperature equalizing channel is positioned at the top of the house body and is communicated with the temperature adjusting channel of the house body. By adopting the existing animal house, when fresh air passes through the temperature adjusting channel, the fresh air can exchange heat with the waste gas exhaust pipe, so that the temperature difference between the fresh air and the house body is smaller, and better cultivation is realized; meanwhile, as part of fresh air can be discharged into the house body through the vent holes on the temperature equalizing channel, the temperature difference between the two ends of the breeding layer is smaller.

Although the animal house in the prior art can realize better ventilation, the following problems still exist in the actual use process:

1. because the waste gas exhaust pipe is arranged in the temperature regulating channel and is communicated with the branch excrement ditch, the waste gas exhaust pipe has higher installation and maintenance operation difficulty and higher cost; meanwhile, as the waste gas exhaust pipe is arranged in the temperature adjusting channel, the waste gas exhaust pipe can occupy partial space of the temperature adjusting channel, so that the ventilation efficiency of the temperature adjusting channel is influenced; and the connecting position of exhaust pipe and branch excrement ditch is numerous, connects for appearing leaking gas easily after long-time the use, causes the dirty air in the exhaust pipe to leak to the passageway that adjusts the temperature for exhaust gas circulation flows in the house body, reduces ventilation's effect, and partial dirty air can't in time be discharged and is unfavorable to the safe breed of beasts and birds.

2. Need build the samming passageway at house body top, though breed the house structure to the individual layer, can utilize the furred ceiling space to form the samming passageway, it is not only higher with the cost to breed the house installation samming passageway, and the samming passageway also can occupy this internal partial space of house in addition, influences the use of house body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a biological safety formula beasts and birds are bred and give up ventilation unit and breed house thereof to breed among the solution prior art and breed the problem that ventilation unit structure is complicated and construction cost is high in the house.

In order to solve the above problems, the utility model adopts the following technical scheme: the utility model provides a house ventilation unit is bred to biological safety formula beasts and birds, includes at least two-layer breed house, breeds the bottom of house and is provided with excrement ditch and new trend passageway in turn, breeds the just right both sides of house and is equipped with respectively and breeds the exhaust portion and the air inlet portion of house intercommunication, is equipped with the new trend hole that a plurality of and lower floor bred the house intercommunication on new trend passageway and air inlet portion intercommunication and the new trend passageway.

The principle of the scheme is as follows: in the application, an air inlet part and an air outlet part are arranged on two opposite sides of the breeding house, the air inlet part is used for feeding fresh air into the breeding house, and the air outlet part is used for discharging dirty air in the breeding house; set up the excrement ditch and the new trend passageway of alternative arrangement in the bottom of breeding the house, when the air inlet portion input fresh air in the house is bred to the last layer, partial fresh air enters into the new trend passageway, then by the new trend hole in the new trend passageway downwards discharge into the breed house of downside in, because excrement ditch and new trend passageway set up in turn, make the fresh air in the new trend passageway can carry out the heat exchange with the excrement ditch, thereby make the fresh air temperature in the new trend passageway and breed temperature in the house similar, thereby it is littleer to temperature variation in breeding the house when fresh air is discharged into breeding the house.

The beneficial effect of this scheme is:

1. can carry out beasts and birds breed more safely: compared with the prior art, the method has the advantages that the contaminated air is likely to leak and repeatedly enters the breeding house, so that the problems of poor ventilation effect and safety risk in livestock breeding are caused. Through setting up air inlet portion and the portion of airing exhaust in the both sides of breeding the house in this application, make the fresh air that air inlet portion got into can transversely pass and be discharged by the portion of airing exhaust behind the breeding house, make ventilation more efficient in breeding the house, and dirty air is discharged by the opposite side of breeding the house, effectively avoid dirty air to be taken back as fresh air and take out to the air inlet portion, further ensure fresh air's cleanliness factor, thereby make beasts and birds breed safely and healthily.

2. The structure is more stable and the cost is lower: compare in prior art at the top of house body the mode that sets up the samming passageway, not only can occupy the space of house body, construction cost and installation maintenance cost are all great moreover. In this application, because just need pour out the excrement ditch in the bottom of breeding the house originally, pour out the new trend passageway between the adjacent excrement ditch now, utilize the new trend passageway can supply with fresh air to the breeding house of lower floor, equally can also utilize the heat exchange between excrement ditch and the fresh air, make the temperature value in the fresh air is close breeding the house more, thereby can not cause great change to the temperature in breeding the house when fresh air enters into breeding the house, be favorable to reducing the cost that the temperature of breeding the house is in suitable scope, and enable beasts and birds to be bred better, and the simple structure of new trend passageway and very firm, the cost is also lower.

Preferably, as an improvement, the interior of the breeding house is divided into a plurality of separation gaps, and a plurality of breeding units located above the dung ditch are arranged in the separation gaps.

In the scheme, the breeding house is divided into a plurality of mutually independent separation gaps, so that the mutual influence of the breeding units in the adjacent separation gaps is reduced, in addition, in the actual breeding process, part of the breeding units can be used according to the actual breeding condition, and the pollution to the rest of the breeding units in the unused separation gaps can be avoided; meanwhile, a plurality of breeding units above the dung ditches are arranged in the same separation gap, so that excrement of livestock and poultry in the breeding units can fall into the dung ditches, the excrement of the livestock and poultry can be conveniently and quickly discharged through the dung ditches, and a plurality of breeding units are conveniently and standardly managed.

Preferably, as an improvement, the culture units in the same partition gap are divided into a plurality of arrangement groups, the culture units in each arrangement group are arranged along the length direction of the manure channels, and the number of the manure channels is equal to that of the arrangement groups and corresponds to that of the manure channels one by one.

In this scheme, set up the quantity of ranks and excrement ditch into equal and one-to-one state for the below of every ranks can both dispose an excrement ditch, so that the beasts and birds excrement of all breed units in same ranks can fall into the excrement ditch completely and accurately, conveniently discharges away the excrement of beasts and birds with the high efficiency.

Preferably, as an improvement, a passageway and a partition wall are arranged between the air inlet part and the breeding house, and a plurality of ventilation control windows are arranged on the partition wall.

In this scheme, through set up passageway and division wall between air inlet portion and breed the house, make and to be full of fresh air and form the clean area (correspond the dirty district of exhaust portion position formation) in the passageway, and set up the ventilation control window on the division wall, the ventilation control window is arranged in controlling the ventilation volume that fresh air got into in the different separation clearances, thereby whether breed the unit according to in the separation clearance is in the user state, and breed the quantity that the unit used in the same separation clearance and how much control the ventilation volume size of ventilation control window, effectively avoid fresh air's waste and reduce ventilation's energy consumption.

Preferably, as an improvement, be equipped with the filtration piece between passageway and the air inlet portion, be equipped with the air current driving piece between breed house and the portion of airing exhaust.

In this scheme, utilize to filter the fresh air that gets into the house of breeding and filter, promote fresh air's cleanliness factor, utilize the air current driving piece simultaneously to breed the dirty air suction in the house of breeding to the portion of airing exhaust in, form directional air current and make in the house of breeding and breed the house and accomplish the ventilation process high-efficiently.

Preferably, as an improvement, a control unit for controlling the opening degree of the fresh air hole is arranged in the fresh air channel.

According to the scheme, the opening of the fresh air hole is controlled by the control unit in the fresh air channel, so that the fresh air channel can be completely closed when the livestock and poultry breeding activities are not carried out in the lower-layer breeding house, breeding activities can be carried out in partial positions of the lower-layer breeding house (for example, the breeding units in the breeding house are not completely used, and only partial breeding units are used), the position of feeding fresh air downwards in the fresh air channel is correspondingly controlled, fixed-point control is carried out, and more efficient and energy-saving ventilation and air exchange are realized; more importantly, to a plurality of new trend holes in same new trend passageway, can be along new trend passageway's extending direction, make the aperture gradient change of a plurality of new trend holes, for example from the direction of air inlet portion to exhaust portion, the aperture of adjacent new trend hole increases gradually, make the fresh air volume that is close to the air inlet portion position in the house is bred to the lower floor less, and be close to exhaust position and can obtain more fresh air from the new trend passageway, combine to be close to the air inlet portion position in the house is bred to the lower floor and can supply fresh air by the air inlet portion that sets up in the house is bred to the downside, make different positions in the house of breeding can both obtain appropriate amount fresh air, realize evenly supplying fresh air to the different positions of house of breeding, thereby realize better breed.

Preferably, as an improvement, the control unit comprises a baffle plate slidably connected in the fresh air channel.

In this scheme, through the slip shielding plate, make the overlapping area of shielding plate and new trend hole change to the aperture that makes the new trend hole is adjusted, simple structure and regulation convenience.

Preferably, as an improvement, the breeding unit comprises a breeding and breeding fence, a nursing and breeding fence, a obstetric table and a breeding and pregnancy breeding fence.

In this scheme, breed the unit and include obstetric table, child care bed and spacing fence etc. adopt different breed units according to the different growth stages that the beasts and birds were bred.

Preferably, as an improvement, the filter is a wet curtain and/or an air filter.

In the scheme, the fresh air entering the breeding house can be filtered by utilizing the wet curtain and/or the air filter screen, so that the cleanliness of the fresh air is improved; meanwhile, the wet curtain is arranged, so that the temperature of fresh air can be quickly reduced, and the air conditioner is particularly suitable for being in a high-temperature state in summer when the external environment is in a high-temperature state.

The utility model provides a biological safety formula beasts and birds are bred and give up, includes five layers at least and breeds the floor, breed the floor and be equipped with biological safety formula beasts and birds are bred and give up ventilation unit, all breed the same kind of unit in the same floor of breeding.

In this scheme, through setting up the multilayer and breeding the floor to set up all breed units in the same breed floor to same kind, thereby make every layer only accomplish the breed of a growth stage of beasts and birds in breeding the house, avoid different growth stages to mix together, breed with the beasts and birds that realize more standard and efficient.

Drawings

Fig. 1 is a front cross-sectional view of a first embodiment of the present invention.

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A in FIG. one (showing two culture units ofbase:Sub>A obstetric table andbase:Sub>A breeding pregnancy culture fence).

Fig. 3 is a partial schematic view of a front cross-sectional view of a second embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: breeding house 1, excrement ditch 2, fresh air channel 3, wind building 4, negative pressure fan 5, air intake 6, fresh air hole 7, passageway 8, divider wall 9, ventilation control window 10, wet curtain 11, division wall 12, breed unit 13, obstetric table 1301, breeding fence 1302, shielding plate 14 of mating pregnancies.

Example one

The first embodiment is substantially as shown in figures 1 and 2: a biological safety type livestock and poultry breeding house ventilation device comprises at least two layers of breeding houses 1, wherein a dung ditch 2 and a fresh air channel 3 are poured at the bottom of each layer of breeding house 1 in the left-right direction through concrete; the left side and the right side of the breeding house 1 are respectively provided with an air exhaust part and an air inlet part which are communicated with the breeding house 1, the air exhaust part comprises an air building 4 arranged on the left side of the breeding house 1, the left side of the breeding house 1 is provided with a negative pressure fan 5, and dirty air in the breeding house 1 can be sucked into the air building 4 by utilizing the negative pressure fan 5; the air inlet portion can also be according to the demand condition of actual ventilation in the use according to the air intake 6 department installation positive pressure fan that sets up in 1 right side in breed house, promotes ventilation's speed, and here is no longer repeated.

As shown in fig. 1, the right end of the fresh air channel 3 is communicated with the air inlet 6, and the bottom of the fresh air channel 3 is provided with a plurality of fresh air holes 7 arranged at transverse intervals, and the fresh air holes 7 are communicated with the cultivation house 1 on the lower side, so that fresh air in the fresh air channel 3 can be discharged downwards into the cultivation house 1 on the lower side through the fresh air holes 7. Meanwhile, the right side of the breeding house 1 is provided with a passageway 8, and the air inlet 6 is positioned on the right side of the passageway 8, so that fresh air entering from the air inlet 6 can firstly enter the passageway 8; meanwhile, a partition wall 9 is arranged between the passageway 8 and the breeding house 1, a plurality of ventilation control windows 10 are installed on the partition wall 9, in the embodiment, the number of the ventilation control windows 10 is equal to that of the partition gaps, the ventilation control windows are arranged in a one-to-one correspondence mode, and the speed of fresh air in the passageway 8 entering the partition gaps can be controlled through the ventilation control windows 10. Be equipped with between passageway 8 and the air intake 6 and filter, in this embodiment, filter one or two kinds (the condition that only sets up wet curtain 11 is shown in fig. 1) in for wet curtain 11 and the airstrainer, utilize to filter can filter the fresh air that gets into in passageway 8, and when setting up wet curtain 11, wet curtain 11 can also play cooling effect to fresh air, is particularly suitable for the ventilation of breeding house 1 under the higher state of external environment temperature.

Referring to fig. 1 and 2, a plurality of partition walls 12 are built in the breeding house 1, the breeding house 1 is divided into a plurality of independent partition gaps by the partition walls 12, and each partition gap is provided with a plurality of breeding units 13. The cultivating unit 13 in this embodiment is one of a cultivating and cultivating fence, a nursing and cultivating fence, a obstetric table 1301 and a breeding and gestation cultivating fence 1302, the arranging direction of the cultivating unit 13 is perpendicular to the length direction of the manure pit 2, and in this embodiment, the cultivating units 13 in the same separation gap are equally divided into a plurality of arrangement groups (two rows are shown in fig. 2), and the cultivating units 13 in each arrangement group are arranged along the length direction of the manure pit 2. When the breeding unit 13 in the arrangement groups is a obstetric table 1301 or a breeding pregnancy breeding fence 1302, a gap is formed between every two adjacent arrangement groups, so that the obstetric tables 1301 in different arrangement groups are relatively independent, and livestock and poultry in the obstetric tables 1301 can be cleaned and nursed more comprehensively; when the culture units 13 in the arrangement groups are culture bars or conservation culture bars, no gap is provided between two adjacent arrangement groups.

As shown in fig. 2, the number of the manure channels 2 in the same separation gap is equal to and corresponds to the number of the arrangement groups one by one, that is, one manure channel 2 is arranged right below each arrangement group, so that the excrement generated in the process of culturing the livestock by all the culture units 13 in the arrangement groups can directly fall down into the manure channels 2. When the breeding unit 13 is the obstetric table 1301 or the breeding pregnancy breeding fence 1302, the number of the fresh air channels 3 is three, and when the breeding unit 13 is the breeding fence or the nursing fence, the number of the fresh air channels 3 is two, but no matter how many the fresh air channels 3 are, the bottoms of all the fresh air channels 3 are in a communicated state, so that the excrement trench 2 is in a state of being suspended in the fresh air channels 3, the contact area between the fresh air channels 3 and the side walls of the excrement trench 2 is increased, and therefore when fresh air enters the fresh air channels 3, the fresh air and the excrement trench 2 can perform more sufficient heat exchange, the temperature difference between the fresh air and the inside of the breeding house 1 is reduced, and the control cost for controlling the temperature in the breeding house 1 within a proper range is reduced.

A biological safety type livestock and poultry breeding house comprises at least five breeding floors (in the embodiment, the number of the breeding floors is five), wherein the biological safety type livestock and poultry breeding house ventilation devices are arranged in the breeding floors, and the breeding units 13 in all separation gaps in the same floor are the same, so that the breeding of all livestock and poultry in the same breeding floor is in the same growth stage, and unified management is facilitated; in four breeding floors of the breeding house from top to bottom, correspondingly arranged breeding units 13 are a breeding pregnancy breeding fence 1302, a birth bed 1301, a nursing breeding fence (not shown in fig. 2) and a breeding fence (not shown in fig. 2) in sequence, so that the fattening pigs in the breeding fence are positioned in the lower breeding floors, and the fattening pigs can be conveniently discharged.

The specific implementation process is as follows:

in the livestock and poultry breeding process, dirty air in the breeding house 1 is continuously sucked into the wind building 4 through the negative pressure fan 5 and then is intensively discharged from the wind building 4, in the process that the air in the breeding house 1 is continuously sucked into the wind building 4, fresh air on the right side of the breeding house 1 is continuously sucked into the air inlet 6, and after the fresh air enters the air inlet 6, part of the fresh air enters the passageway 8 after passing through the filter element and then enters the breeding house 1 through the ventilation control window 10; the other part of fresh air enters the fresh air channel 3 from the air inlet 6 and then enters the breeding house 1 at the lower side from the fresh air hole 7 at the bottom of the fresh air channel 3, and the fresh air in the fresh air channel 3 can exchange heat with the manure pit 2 because the fresh air channel 3 and the manure pit 2 are alternately arranged (specifically, the temperature difference between the temperature in the manure pit 2 and the temperature in the breeding house 1 is not very large, when the temperature difference between the external environment and the temperature in the breeding house 1 is large, the external fresh air enters the fresh air channel 3 and exchanges heat with the manure pit 2, so that the temperature difference between the fresh air and the breeding house 1 before entering the breeding house 1 at the lower side is reduced, and the temperature of the fresh air is more suitable for livestock breeding); simultaneously, because a plurality of new trend holes 7 in the new trend passageway 3 are arranged along new trend passageway 3's length direction, consequently, the fresh air in the new trend passageway 3 can be carried to each position of breeding house 1 through a plurality of new trend holes 7 fast for the beasts and birds of breeding house 1 different positions can both obtain fresh air, thereby reach better breed effect.

Example two

The difference between the second embodiment and the first embodiment is that: as shown in fig. 3, in this embodiment, a control unit for controlling the opening of the fresh air holes 7 is disposed in the fresh air channel 3, the control unit is a shielding plate 14 connected in the fresh air channel 3 in a transverse sliding manner, the number of the shielding plates 14 is equal to that of the fresh air holes 7, and the shielding plates 14 are disposed in a one-to-one correspondence manner, so as to partially or completely shield the fresh air holes 7, thereby controlling the opening of the fresh air holes 7. For the mode of driving the shielding plate 14 to slide, a motor or an electric cylinder and other mechanical driving parts can be installed in the fresh air channel 3 to drive the shielding plate 14 to slide, or the shielding plate 14 can be directly pushed and pulled to slide from the inside of the breeding house 1.

In the embodiment, the opening of the fresh air hole 7 can be adjusted by arranging the baffle plate 14, so that the fresh air hole 7 above an unused breeding party can be shielded when the breeding units 13 in a part of separation gaps in the breeding house 1 are in an empty unused state in the use process of the breeding house 1, thereby preventing fresh air from being inefficiently conveyed to the breeding units 13 which are not used for breeding livestock and poultry and reducing energy consumption; simultaneously, can be through adjusting the aperture trend of new trend hole 7 on the same new trend passageway 3, for example through adjusting, by air intake 6 to wind building 4's direction, make the aperture of same row new trend hole 7 increase gradually, thereby it is less to being close to the fresh air volume that lower floor's breed house 1 was close to the supply of air intake 6 position, and supply more fresh air to being close to wind building 4 position, air intake 6 that the breed house 1 that combines the lower floor to correspond can be to breeding the interior input part fresh air of house 1, thereby make breed house 1 wholly can obtain comparatively equal amount fresh air, thereby reach better breed effect of beasts and birds.

EXAMPLE III

The present embodiment is different from the second embodiment in that: in the second embodiment, the opening degree of the fresh air hole 7 is adjusted by the baffle plate 14 which is arranged to slide transversely, in this embodiment, the control unit adopts the shutter which can adjust the opening degree to adjust the opening degree of the fresh air hole 7, and the shutter can be manually adjusted or adopt an electric shutter, so that the structure is simple, the installation is convenient, and the adjustment of the opening degree of the fresh air hole 7 can be conveniently realized.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The utility model provides a biohazard safety formula livestock and poultry breeding house ventilation unit, includes that at least two-layer breeds the house, its characterized in that: breed the bottom of house and be provided with excrement ditch and new trend passageway in turn, breed the just right both sides of house and be equipped with respectively with the exhaust portion and the air inlet portion of breeding the house intercommunication, be equipped with the new trend hole that a plurality of and lower floor breed the house intercommunication on new trend passageway and air inlet portion intercommunication and the new trend passageway.

2. The biological safety type livestock and poultry breeding house ventilation device according to claim 1, characterized in that: the inside of the breeding house is divided into a plurality of separation gaps, and a plurality of breeding units located above the manure ditch are arranged in the separation gaps.

3. The biological safety type livestock and poultry breeding house ventilation device according to claim 2, characterized in that: the culture units in the same separation gap are uniformly divided into a plurality of arrangement groups, the culture units in each arrangement group are arranged along the length direction of the manure channels, and the number of the manure channels is equal to that of the arrangement groups and corresponds to that of the arrangement groups one by one.

4. A biologically safe ventilation device for livestock and poultry breeding houses according to claim 2 or 3, characterized in that: and a passageway and a partition wall are arranged between the air inlet part and the breeding house, and a plurality of ventilation control windows are arranged on the partition wall.

5. The bio-safety livestock and poultry breeding house ventilation device according to claim 4, characterized in that: a filter piece is arranged between the passageway and the air inlet portion, and an air flow driving piece is arranged between the breeding house and the air exhaust portion.

6. The biological safety type livestock and poultry breeding house ventilation device according to claim 1, characterized in that: and a control unit for controlling the opening degree of the fresh air hole is arranged in the fresh air channel.

7. The bio-safety ventilation device for livestock and poultry breeding house according to claim 6, characterized in that: the control unit comprises a baffle plate which is connected in the fresh air channel in a sliding mode.

8. The biological safety type livestock and poultry breeding house ventilation device according to claim 2, characterized in that: the breeding unit comprises a breeding and breeding fence, a conservation breeding fence, a obstetric table and a mating pregnancy breeding fence.

9. The bio-safety livestock and poultry breeding house ventilation device according to claim 5, characterized in that: the filter is a wet curtain and/or an air filter screen.

10. The utility model provides a house is bred to biological safety formula beasts and birds which characterized in that: the biological safety type livestock and poultry breeding house ventilation device as claimed in any one of claims 2-8 is arranged in the breeding floors, and all breeding units in the same breeding floor are of the same type.

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