CN104521799A - Automatic full-closed tier breeding pullet house ventilation method - Google Patents
Automatic full-closed tier breeding pullet house ventilation method Download PDFInfo
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- CN104521799A CN104521799A CN201410814260.2A CN201410814260A CN104521799A CN 104521799 A CN104521799 A CN 104521799A CN 201410814260 A CN201410814260 A CN 201410814260A CN 104521799 A CN104521799 A CN 104521799A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009395 breeding Methods 0.000 title abstract 2
- 230000001488 breeding effect Effects 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 241001185697 Fenestella Species 0.000 claims description 10
- 241000287828 Gallus gallus Species 0.000 claims description 9
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000003331 infrared imaging Methods 0.000 description 4
- 244000144977 poultry Species 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Birds (AREA)
- Ventilation (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an automatic full-closed tier breeding pullet house ventilation method. The ventilation method includes the following steps: (1) determining the total ventilation amount needed by a pullet house; (2) determining the number of draught fans needing to be started according to the needed total ventilation amount, wherein the negative pressure of each draught fan keeps to range from 18 Pa to 22 Pa, the total ventilation amount is equal to a product of a quotient obtained by dividing the air cooling factor F with a difference of the in-house average temperature T1 and expectation sendible temperature T2, the pullet house cross sectional area S and 3600 seconds; in addition, the total ventilation amount is larger than or equal to a product of 1.1m<3>/h, the number of pullets in the pullet house and the average weight of the pullet if kilogram serves as a unit. According to the method, the pullet house management standardization level is improved, and the strength of a worker is reduced; in addition, through optimization of ventilation, the pullet health condition is improved, and the pullet laying rate is improved.
Description
Technical field
The invention belongs to poultry cultivating technology, relate in particular to the method for ventilation of the totally-enclosed layer raising layer house of a kind of automation.
Background technology
Current domestic laying hen is just risen at the aquaculture model of automation totally-enclosed layer poultry house, ventilating problem be mainly manifested in following some: 1. excessive, the humidity of winter-spring season day and night temperature can not be kept in balance, and how to coordinate to ventilate and warming contradiction.2. summer temp is too high, how to lower the temperature.3. how to ensure up and down nearly 3 layers to 6 layers and even more than 6 layers the ventilation of tier-type poultry cage, homogeneous temperature.4. how to ensure hen house cross ventilation, homogeneous temperature.
Major part cultivation company adopts exhaust ventilation more in feeding and management process, and by sense organ, the experienced administrative staff of dependence determine that number opened by blower fan more.This operation has a lot of drawback, one be administrative staff's intricate operation arduous, two be that everyone experience is different, be difficult to accomplish standardized management.
Summary of the invention
The invention provides the computable science method of ventilation of a kind of automation totally-enclosed layer raising layer house, be different from the current domestic popular method of operating leaning on keeper's experience and sensation, efficiently solve the domestic three-dimensional layer just risen at present and support an associated airway difficult problem for cage Laying House, reduce the operation easier of site administrator, have very big meaning for improving the productivitys such as laying rate, death rate, feedstuff-egg ratio and reducing the diseases such as respiratory tract.
Specifically, the present invention is by the following technical solutions:
The method of ventilation of the totally-enclosed layer raising layer house of a kind of automation, described Laying House is the totally-enclosed building of long caged, there is air inlet the front portion of hen house, air inlet is provided with longitudinal curtain system, rear gable arranges some Fans, it is characterized in that, said method comprising the steps of: 1) determine the total ventilation required for hen house; 2) determine according to required total ventilation required for the number of units of blower fan opened, wherein, every Fans keeps the negative pressure of 18-22Pa, total ventilation=(in house, mean temperature of air T1-expects sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second, and described total ventilation is not less than 1.1m
3chicken numeral * chicken average weight number (in kg) in/h* hen house, in above-mentioned formula, air-cooled factor F value changes according to temperature, as shown in the table:
| Current Temperatures | 35 | 32 | 29.5 | 26 | 24 | 21 |
| The air-cooled factor | 8.5 | 6.5 | 5.1 | 4 | 2.8 | 2.8 |
。
In above-described some Fans, indivedual ventilations of every Fans can be equal, also can be unequal.In one embodiment, indivedual ventilations of separate unit blower fan are unequal, therefore 2) determine that the step that number of units opened by blower fan comprises the blower fan selecting to have applicable indivedual ventilation, to make total ventilation of selected blower fan and the immediate step of required total ventilation.
In another embodiment, indivedual ventilations of described some Fans are equal to each other, 2) determine that the step that number of units opened by blower fan to comprise with required total ventilation divided by indivedual ventilation to obtain business and the step rounded this business.In this case, the method that rounds described in is selected to this business's round down, to this business's round-up or any one in rounding up to this business.Preferably, round in step business, when season is spring and autumn for rounding up, being round-up when season is summer, is round down when season is winter.
In above-mentioned method of ventilation, preferably, side gable has some fenestellas, in step 1) before or after also comprise step according to determining draft type season, wherein close fenestella when summer and open longitudinal curtain system to take longitudinal ventilation pattern, open fenestella time in the winter time also closes longitudinal curtain to take transverse air-intake and longitudinal air-out mode, partially opens fenestella and longitudinal curtain to take mixed ventilation pattern when spring and autumn.
In the above-mentioned methods, in preferred hen house, longitudinal wet curtain cooling system is also installed, when summer temp is opened higher than this wet curtain cooling system when 30 DEG C.
Adopt method of the present invention, by above ventilation formula, the requirement taking into account negative pressure and minimum ventilation rate can draw and currently need blower fan number, the temperature difference before and after hen house is made to control within 2 degree, upper and lower temperature difference controls within 2 degree, summer effective temperature-reducing 5-7 degree, winter-spring season active balance ventilates and warming contradiction.
Specifically, adopt method of the present invention, there is following beneficial effect:
1, the working strength of the feeding and management personnel of the totally-enclosed layer raising layer house of automation is effectively alleviated;
2, reduce difference different because of operating personnel's experience different feeling between different hen house, improve standardization level;
3, the optimization by ventilating, improves the health status of chicken, effectively improve raise the 2%-5% laying rate of laying hen, reduce the death rate of 1-2%, decrease the incidence of disease.
Accompanying drawing explanation
Infrared imaging figure when Fig. 1 is 10pa in hen house;
Infrared imaging figure when Fig. 2 is 20pa in hen house;
Infrared imaging figure when Fig. 3 is 30pa in hen house.
Embodiment
For above problem we through repetition test, summed up following formula and technical parameter, effectively solved the problems referred to above:
Total ventilation=(in house, mean temperature of air T1-expects sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second
Wherein:
T1 is current hen house mean temperature;
T2 is for expecting sendible temperature;
S is hen house cross-sectional area;
F is the air-cooled factor, with reference to following table:
| Current Temperatures | 35 | 32 | 29.5 | 26 | 24 | 21 |
| The air-cooled factor | 8.5 | 6.5 | 5.1 | 4 | 2.8 | 2.8 |
By above formula, the requirement taking into account negative pressure and minimum ventilation rate can draw and currently need blower fan number.
Experiment:
For various influence factor such as wind speed, negative pressure, temperature and Temperature Distribution, air-admitting surface etc., under same external environment, blank group, control group is divided into a batch chicken group, comparative trial is done for some single factors, by Growth Results, site environment measurement data with there is the checking of the means such as experience human feeling scoring, draw optimum parameter.
Experiment equipment: the instrument such as the Testo 410-1 vane anemometer anemobiagraph that De Tu company produces, thermometer, 510 negative pressure instrument, essence wound RC-4U dish moisture recorder, DALI infrared thermoviewer.
Experiment place: experiment hen house is wide 12.5 meters, long 90 meters, high 4.8 meters totally-enclosed structures, heat barrier foam plate flat-top, hen house both sides gable respectively has 55 ventilation small windows (specification is 21cm*60cm), rear gable 6 exhaust blower, often arrange 3 to be uniformly distributed, the separate unit ventilation of blower fan used is 36000 cubes ms/h.The air inlet that front gable and left and right gable are respectively made up of interior curtain, outer cascade by one piece, area is respectively 25,25,25m
2.Chicken coop equipment is that point 4 row, often a layer for row 6 layers support structure.
Negative pressure:
In the situations such as same hen house, same kind, same chicken group numeral, blank group negative pressure 20Pa, experimental group 10Pa, 30Pa, each section of wind speed (table 1 and table 2), temperature (infrared imaging Fig. 1,2,3 is everywhere measured with anemobiagraph respectively under 6 Fans and 10 Fans, this three figure all tests under 10 conditions), when conclusion is 20Pa everywhere, each section of wind speed, more uniform temperature, therefore, it is the most suitable that we think that negative pressure remains between 18-22Pa.
Each point wind speed under different negative pressure during table 1:6 Fans
Each point wind speed under different negative pressure during table 2:10 Fans
Wind speed:
Summer is defined in 2.5m/s-5m/s, adopts longitudinal ventilation, and temperature opens wet curtain cooling system higher than when 30 DEG C, and for preventing humidity excessive, bring discomfort to chicken, wet curtain cooling system takes out 10min, closes the measure of 3min.
Winter, wind speed≤0.3m/s, adopted horizontal fenestella air intake, the mixed ventilation way of longitudinal blower fan air-out.Through test, effect is better than transversal ventilation mode, effectively avoids uneven, to have dead angle problem of ventilating.
Winter-Spring alternately and in adopt transverse and longitudinal mixed ventilation pattern to ventilate after autumn, concrete way is how many horizontal fenestellas opens different opening according to the requirement of negative pressure 18-22Pa automatically with longitudinal blower fan number, when noon, blower fan number was too much, open longitudinal curtain system with the insufficient section of supplementary intake.Now blast velocity control is at 0.6m/s-2.5m/s.
The calculating of minimum ventilation rate:
Through repetition test with grope for a long time, we sum up the computing formula of minimum ventilation rate, by per kilogram of body weight 1.1m
3the exhalation amount exchange of air of/h, i.e. 1.1m
3chicken numeral * chicken weight (kg) in/h* hen house.
Air-cooled effect with experience temperature:
The air-cooled factor refers to the temperature that the wind speed of 1m/s falls; Air-cooled effect refers to the number of the temperature of falling under certain wind speed; Experience temperature and namely refer to that actual temperature deducts the value of air-cooled effect gained.Through repeatedly groping in production practices, we calculate sendible temperature according to the air-cooled factor shown in the data in following table.
Table 3: the air-cooled factor under different temperatures
| Current Temperatures | 35 | 32 | 29.5 | 26 | 24 | 21 |
| The air-cooled factor | 8.5 | 6.5 | 5.1 | 4 | 2.8 | 2.8 |
。
Ventilation formula:
The air-cooled factor listed by upper table, our production management personnel are deduced following formula in repeatedly groping:
Total ventilation=(in house, mean temperature of air T1-expects sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second
When the separate unit ventilation of every Fans is equal, this formula can be rewritten as:
The blower fan number of units n=that opens (in house, mean temperature of air T1-expects sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second/separate unit ventilation.
Specific to this experiment, according to the blower fan used in this experiment, this formula can be rewritten as further:
Current blower fan number=(house in mean temperature of air T1-expect sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second/36000m
3/ h.
Need the Railway Project illustrated:
1. the theoretical foundation of formula be based upon foregoing negative pressure, wind speed, the air-cooled factor, minimum ventilation rate every suitable parameter basis on.
2. expect sendible temperature: daytime differs with night and is no more than 3 DEG C.
3. expect that sendible temperature and the air-cooled factor these two parameters are closely related with factors such as current house temperature, chicken age, temperature, humidity, how many values needs comprehensive many factors system to consider decision.
4. expect that sendible temperature also needs to contact with the Changes in weather in nearest one-phase, execution parameter etc., keep stable as far as possible.
In conjunction with instantiation, embodiments of the present invention are described in detail above, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Claims (7)
1. the method for ventilation of the totally-enclosed layer raising layer house of automation, described Laying House is the totally-enclosed building of long caged, there is air inlet the front portion of hen house, air inlet is provided with longitudinal curtain system, rear gable arranges some Fans, it is characterized in that, said method comprising the steps of: 1) determine the total ventilation required for hen house; 2) determine according to required total ventilation required for the number of units of blower fan opened, wherein, every Fans keeps the negative pressure of 18-22Pa, total ventilation=(in house, mean temperature of air T1-expects sendible temperature T2)/air-cooled factor F × hen house cross-sectional area S × 3600 second, and described total ventilation is not less than 1.1m
3chicken numeral * chicken average weight number (in kg) in/h* hen house, in above-mentioned formula, air-cooled factor F value changes according to temperature, as shown in the table:
。
2. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 1, it is characterized in that, in described some Fans, indivedual ventilations of separate unit blower fan are unequal, 2) determine that the step that number of units opened by blower fan comprises the blower fan selecting to have applicable indivedual ventilation, to make total ventilation of selected blower fan and the immediate step of required total ventilation.
3. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 1, it is characterized in that, indivedual ventilations of described some Fans are equal to each other, 2) determine that the step that number of units opened by blower fan to comprise with required total ventilation divided by indivedual ventilation to obtain business and the step rounded this business.
4. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 3, is characterized in that, described in round method be selected to this business's round down, to this business's round-up or any one in rounding up to this business.
5. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 3, is characterized in that, rounds in step business, and when season is spring and autumn for rounding up, being round-up when season is summer, is round down when season is winter.
6. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 1, it is characterized in that, side gable has some fenestellas, in step 1) before or after also comprise step according to determining draft type season, wherein close fenestella when summer and open longitudinal curtain system to take longitudinal ventilation pattern, open fenestella time in the winter time also closes longitudinal curtain to take transverse air-intake and longitudinal air-out mode, partially opens fenestella and longitudinal curtain to take mixed ventilation pattern when spring and autumn.
7. the method for ventilation of the totally-enclosed layer raising layer house of automation as claimed in claim 1, is characterized in that, be also provided with longitudinal wet curtain cooling system in hen house, when summer temp is opened higher than this wet curtain cooling system when 30 DEG C.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872953A (en) * | 2015-06-03 | 2018-04-03 | 吉斯艾集团有限责任公司 | Animal house atmosphere control system and the method automatically configured for system |
| CN109240387A (en) * | 2018-10-26 | 2019-01-18 | 山东益客智能机械设备有限公司 | A kind of culture hut environmental control system |
| CN109282449A (en) * | 2018-09-19 | 2019-01-29 | 广州市华南畜牧设备有限公司 | Dynamic ventilation method of adjustment and device in livestock and poultry cultivation room |
| CN114706437A (en) * | 2022-04-02 | 2022-07-05 | 大牧人机械(胶州)有限公司 | Air volume control method based on pig position ventilation |
| CN114810634A (en) * | 2022-04-18 | 2022-07-29 | 大牧人机械(胶州)有限公司 | Intelligent control method for permanent magnet fans of same type in pigsty |
| CN116466778A (en) * | 2023-03-27 | 2023-07-21 | 山东科技大学 | Automatic chicken house ventilation control method based on data driving and event reasoning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107872953A (en) * | 2015-06-03 | 2018-04-03 | 吉斯艾集团有限责任公司 | Animal house atmosphere control system and the method automatically configured for system |
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| CN109282449A (en) * | 2018-09-19 | 2019-01-29 | 广州市华南畜牧设备有限公司 | Dynamic ventilation method of adjustment and device in livestock and poultry cultivation room |
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| CN114706437A (en) * | 2022-04-02 | 2022-07-05 | 大牧人机械(胶州)有限公司 | Air volume control method based on pig position ventilation |
| CN114810634A (en) * | 2022-04-18 | 2022-07-29 | 大牧人机械(胶州)有限公司 | Intelligent control method for permanent magnet fans of same type in pigsty |
| CN116466778A (en) * | 2023-03-27 | 2023-07-21 | 山东科技大学 | Automatic chicken house ventilation control method based on data driving and event reasoning |
| CN116466778B (en) * | 2023-03-27 | 2024-02-13 | 山东科技大学 | Automatic chicken house ventilation control method based on data driving and event reasoning |
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