CN110050702B - Low-energy-consumption breeding system capable of reducing concentration of harmful gas in shed and ventilation method - Google Patents
Low-energy-consumption breeding system capable of reducing concentration of harmful gas in shed and ventilation method Download PDFInfo
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- CN110050702B CN110050702B CN201910064489.1A CN201910064489A CN110050702B CN 110050702 B CN110050702 B CN 110050702B CN 201910064489 A CN201910064489 A CN 201910064489A CN 110050702 B CN110050702 B CN 110050702B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 77
- 238000009395 breeding Methods 0.000 title claims abstract description 44
- 230000001488 breeding effect Effects 0.000 title claims abstract description 44
- 238000005265 energy consumption Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 32
- 244000144972 livestock Species 0.000 claims abstract description 24
- 244000144977 poultry Species 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 39
- 239000002912 waste gas Substances 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 12
- 230000002550 fecal effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 abstract description 28
- 230000000630 rising effect Effects 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 4
- 230000002588 toxic effect Effects 0.000 abstract description 4
- 235000013594 poultry meat Nutrition 0.000 description 23
- 239000010871 livestock manure Substances 0.000 description 18
- 230000008520 organization Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 4
- 230000008645 cold stress Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 235000015277 pork Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 235000013613 poultry product Nutrition 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
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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
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0082—Water misting or cooling systems
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention discloses a cultivation system with low energy consumption and capability of reducing concentration of harmful gas in a house and a ventilation method. The breeding system adopts 4-level organized ventilation according to different temperatures outside the breeding house, can realize high air freshness, low energy consumption operation and accurate ventilation of the breeding house, creates a suitable growth space for livestock and poultry, particularly forms vertical airflow structures from top to bottom during feces treatment, effectively inhibits toxic and harmful gases with suddenly rising concentration from moving upwards, and is discharged out of the breeding house as soon as possible.
Description
Technical Field
The invention belongs to the technical field of livestock and poultry breeding facilities and equipment, relates to a breeding system, and particularly relates to a breeding system with low energy consumption and capability of reducing the concentration of harmful gas in a house and a ventilation method.
Background
The Chinese population is large, the consumption of livestock and poultry products is huge, and the national statistical bureau has statistics data in 2017: the yield of the livestock, the cattle, the sheep and the poultry meat of 2017 all year round is 8431 ten thousand tons, wherein the yield of the pork is 5340 ten thousand tons, the yield of the poultry meat is 1897 ten thousand tons, and the pork and poultry meat products account for about 86 percent. In order to meet the increasing market demand, the production efficiency of livestock and poultry is gradually improved, the livestock and poultry breeding mode is developed from the traditional outside-shed free-ranging mode to the inside-shed high-density and closed breeding mode, the land cost and the labor cost are saved by the high-density and closed breeding mode, the large-scale and industrialized popularization of livestock and poultry production is facilitated, and high-concentration NH is extremely easily generated in the shed3、H2S, dust and other harmful gases are harmful to the production and growth of livestock and poultry, and are also harmful to the physical and psychological health of feeding personnel and even die.
High density, closed NH in animal and poultry houses3、H2S, dust and other harmful gas sources are mainly manure pools in houses, and taking a pigsty as an example, the modern pigsty manure treatment mainly comprises three modes: mechanical dung cleaning, padding fermentation and dung soaking in water. Referring to fig. 1 to 3, in order to reduce the concentration of harmful gases in a pigsty while maintaining a suitable temperature of a pigsty, high-density and closed pigsty ventilation modes are classified into minimum ventilation in winter, moderate transition ventilation in spring and autumn and maximum ventilation in summer. However, during daily manure treatment in a pigsty, harmful gas can suddenly rise due to stirring of a manure pit when a mechanical manure cleaning mode manure scraper (1) scrapes manure or a fermentation bed mode manure overturning machine (2) overturns manure padding or a water soaking mode manure plug (3) is plugged and discharges sewage, and particularly during minimum ventilation in winter, transition ventilation in spring and autumn and the like, the air quantity provided by a ventilation system of the pigsty is not enough to reduce the concentration of the harmful gas, and the pigs or feeding personnel in the pigsty can be uncomfortable or even poisoned.
In order to reduce the concentration of harmful gas and dust in the house, the prior method generally adopts a mode of increasing ventilation volume to eliminate the adverse effect caused by high concentration of the harmful gas or installs an exhaust fan on the side wall of the septic tank, and starts the exhaust fan of the septic tank during the treatment of excrement. However, increasing the ventilation volume of the livestock house greatly increases the energy consumption cost of the livestock house, and is also a main reason for cold stress of the livestock house. Although the exhaust fan that starts the manure pit side wall can reduce harmful gas in the manure pit and rise to animal living area, nevertheless because exhaust fan convulsions effective radius is limited, the higher phenomenon of local harmful gas concentration often appears in animal living area, can't thoroughly improve the interior ventilation environment of house.
Disclosure of Invention
The invention aims to provide a culture system and a ventilation method which have low energy consumption and can reduce the concentration of harmful gas in a house, aiming at the defects of the prior art, the system can thoroughly and effectively improve the freshness of air in the house in seasons with lower air temperature, reduce the heat supply cost, avoid the problems of cold stress of livestock and poultry caused by the increase of ventilation quantity due to the sudden increase of the concentration of the harmful gas caused by stirring of feces in the house, and effectively improve the ventilation environment in the house.
The technical scheme adopted by the invention is as follows:
a cultivation system with low energy consumption and capability of reducing the concentration of harmful gas in a house comprises a cultivation house, a gas chamber arranged at the front end of the cultivation house and a ventilation chamber arranged at the rear end of the cultivation house; a breeding area is arranged in the breeding house, a leaking floor and a solid floor are arranged in the breeding area, a septic tank is arranged below the leaking floor, a trench air duct is arranged below the solid floor, the septic tank and the trench air duct are arranged from front to back, the septic tank is communicated with the ventilation chamber, the trench air duct is directly communicated to the outside of the ventilation chamber, a plurality of waste gas exhaust branch pipes are sequentially arranged on the side wall of the trench air duct from front to back, the waste gas exhaust branch pipes communicate the upper space of the septic tank with the trench air duct, the two ends of the breeding house are provided with openable sliding curtains, the wall at the front end of the air chamber is provided with an adjustable air inlet window and a wet curtain, the outside of the adjustable air inlet window is provided with a solar heat-collecting plate, a retractable roller shutter is arranged outside the wet shutter, an air inlet channel from front to back is arranged in the upper space in the breeding house and is communicated with the air chamber, and a plurality of air outlets are arranged on the air inlet channel, and fans are arranged on the wall at the rear end of the air exchange chamber and the tail end of the trench air channel.
In the technical scheme, furthermore, the cultivation system is provided with a ceiling, and the space between the ceiling and the top of the cultivation system forms the air inlet channel, and the ceiling is provided with a plurality of air outlet windows. Or the air inlet channel is an air inlet pipeline arranged above the culture area, and a plurality of air outlet holes are formed in the air inlet pipeline.
Furthermore, a large-displacement fan is arranged on the rear end wall of the air exchange chamber, and a small-displacement fan is arranged at the tail end of the trench air duct. The large displacement and the small displacement are only relative, and are not specific limitations on the displacement of the fan, and the displacement of the fan is specifically set according to the empirical value of the ventilation quantity required by the number of the bred poultry.
Furthermore, a cavity is formed between the solar heat collecting plate and the wall surface where the adjustable air inlet window is located, the solar heat collecting plate is made of thin-wall porous materials, the surface of the solar heat collecting plate is coated with deep color and placed on the sun surface, when the heat collecting plate absorbs the temperature rise of the solar surface, cold air outside the house enters the cavity between the heat collecting plate and the wall body through the air inlet holes in the heat collecting plate after being heated on the surface of the heat collecting plate, heat penetrating outside the house through the wall body in the house is intercepted by air flow entering the cavity, and if the adjustable air inlet window is opened, the cold air enters the house through the adjustable air inlet window.
The ventilation method based on the culture system has low energy consumption and can reduce the concentration of harmful gas in the house, and particularly, when the excrement is treated, a vertical airflow ventilation mode from top to bottom can be formed, so that toxic and harmful gas moves downwards in the culture house and is finally discharged out of the culture system, and the safety of livestock, poultry and excrement treating personnel can be effectively ensured; the system can be used for regulating and controlling according to the outside temperature and has the following four ventilation modes: winter (dirty processing of excrement) ventilation mode, spring autumn (dirty processing of excrement) ventilation mode, the dirty processing of excrement in summer ventilation mode, summer ventilation mode:
1) winter (fecal sewage treatment) ventilation mode
The roller shutters are completely unfolded to seal the wet shutters, the sliding shutters at the two ends of the breeding house are closed, and the adjustable air inlet window and the small-displacement fan are opened;
2) spring and autumn (fecal sewage treatment) ventilation mode
The roller shutters are completely unfolded to seal the wet shutters, the sliding shutters at the two ends of the breeding house are closed, and the adjustable air inlet window, the small-displacement fan and part of the large-displacement fan are opened;
3) summer ventilation mode
Closing the adjustable air inlet window, retracting the roller shutters, starting the wet curtain water pump, opening the sliding curtains at the two ends of the breeding house, and starting the large-discharge fan;
4) summer fecal sewage treatment ventilation mode
And closing the adjustable air inlet window, folding the roller shutter, opening the wet curtain water pump, closing the sliding curtains at the two ends of the breeding house, and opening the large-displacement fan and the small-displacement fan.
The invention has the beneficial effects that:
the breeding system adopts the solar heat collecting plate as a preheating mode of fresh air outside the livestock and poultry house, can realize multiple ventilation modes by regulating and controlling various parts of the breeding system, increases the ventilation quantity of the livestock and poultry house when the temperature is low, improves the freshness of the air in the house, greatly reduces the operation cost, can realize accurate ventilation, particularly forms a vertical airflow organization mode from top to bottom when the manure treatment is needed, can effectively eliminate the harm to the house caused by the sudden rise of the concentration of harmful gas, and creates a proper growth environment for livestock and poultry.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows a mechanical dung cleaning mode for scraping dung by using a dung scraper (1);
FIG. 2 is a fermentation bed mode of raking padding by a raking machine (2);
FIG. 3 is a water-soaking manure mode for discharging sewage through the manure-removing plug (3);
FIG. 4 is a schematic plan view of the cultivation system of the present invention;
FIG. 5 is a schematic view of the rear end (i.e., the right-most side of FIG. 4) fan arrangement of the farming system of FIG. 4;
FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 4;
FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 4;
FIG. 8 is a schematic cross-sectional view taken at C-C of FIG. 4;
FIG. 9 is a schematic cross-sectional view taken along line D-D of FIG. 4; (a) the air inlet channel is formed by a suspended ceiling, and (b) the air inlet channel is formed by an air inlet pipeline;
FIG. 10 is a schematic cross-sectional view taken along line E-E of FIG. 4; (a) the air inlet channel is formed by a suspended ceiling, and (b) the air inlet channel is formed by an air inlet pipeline;
fig. 11 shows a winter (fecal sewage treatment) ventilation mode, (a) the air inlet channel is formed by a suspended ceiling, and (b) the air inlet channel is formed by an air inlet duct;
FIG. 12 is a spring and autumn (septic) ventilation mode in which (a) the air inlet channel is formed by a drop ceiling and (b) the air inlet channel is formed by an air inlet duct;
FIG. 13 is an enlarged detail view of the intake of FIGS. 12 and 13;
FIG. 14 is a summer ventilation mode in which (a) the inlet air channels are formed by the drop ceiling and (b) the inlet air channels are formed by the inlet air ducts;
FIG. 15 is an enlarged detail view of the intake of FIG. 14;
FIG. 16 is a summer (manure treatment) ventilation mode in which (a) the air inlet channel is formed by a drop ceiling and (b) the air inlet channel is formed by an air inlet duct;
fig. 17 is an enlarged detail view of the intake of fig. 16.
In the figure: 1. the manure scraper comprises a manure scraper, 2. a rake turning machine, 3. a manure plug, 4. a solar heat collecting plate, 5. an adjustable air inlet window, 6. a ceiling, 7. an air outlet window, 8. a trench air duct, 9. a waste gas exhaust branch pipe, 10. a large discharge fan, 11. a small discharge fan, 12. an air inlet pipeline, 13. an air outlet, 14. a sliding curtain, 15. a wet curtain, 16. a rolling curtain, 17. a crack floor, 18. a septic tank, 19. a solid floor, 18,
Detailed Description
The present invention is further illustrated by the following specific examples.
The cultivation system with low energy consumption and capability of reducing the concentration of harmful gases in the house, as shown in fig. 4-10, comprises a cultivation house, an air chamber arranged at the front end of the cultivation house and an air exchange chamber arranged at the rear end of the cultivation house; a breeding area is arranged in the breeding house, a leaky floor 17 and a solid floor 19 are arranged in the breeding area, a septic tank 18 is arranged below the leaky floor 17, a trench air duct 8 is arranged below the solid floor 19, the septic tank 18 and the trench air duct 8 are both arranged in the forward direction and the backward direction, the septic tank 18 is communicated with an air exchange chamber, the trench air duct 8 is communicated with the outside of the air exchange chamber, a plurality of waste gas exhaust branch pipes 9 are sequentially arranged on the side wall of the trench air duct from the front to the back, the waste gas exhaust branch pipes 9 communicate the upper space of the septic tank with the trench air duct, openable slide curtains 14 are arranged at two ends of the breeding house, an adjustable air inlet window 5 and a wet curtain 15 are arranged on the wall at the front end of the air chamber, a solar energy heat collecting plate 4 is arranged outside the adjustable window 5, a retractable roll curtain 16 is arranged outside the wet curtain 15, an air inlet channel from the front to the back is arranged in the upper space in the breeding house, the air inlet channel can be obtained in two forms: one is that the cultivation system is provided with a suspended ceiling 6, the suspended ceiling 6 and the top of the cultivation system are not completely closed, especially the suspended ceiling above the air chamber is kept open, the space between the suspended ceiling and the top of the cultivation system forms the air inlet channel, and a plurality of air outlet windows 7 are arranged on the suspended ceiling (as shown in fig. 9(a) and 10 (a)). The other is formed by an air inlet pipeline 12 arranged above the culture area, and a plurality of air outlet holes 13 are arranged on the air inlet pipeline (as shown in fig. 9(b) and fig. 10 (b)). Fans are arranged on the wall at the rear end of the air exchange chamber and at the tail end of the trench air duct. A large-displacement fan can be arranged on the rear end wall of the air exchange chamber, and a small-displacement fan is arranged at the tail end of the trench air duct. The 'large displacement' and the 'small displacement' are only relative to each other and are not specific limitations on the displacement of the fan, and the displacement of the fan is specifically set according to the empirical value of the ventilation quantity required by the number of the bred poultry.
The solar heat-collecting plate is made of thin-wall porous materials, the surface of the solar heat-collecting plate is coated with dark colors (such as black perforated color steel plates), and the solar heat-collecting plate is arranged on the sun and forms a cavity with the front end outer wall of the culture system. When the heat-collecting plate absorbs the surface temperature rise of solar energy, cold air outside the house is heated by the surface of the heat-collecting plate and enters a cavity between the heat-collecting plate and a wall body through the air inlet small holes in the heat-collecting plate, and heat penetrating outside the house through the wall body in the house is intercepted by air flow entering the cavity and flows back into the house again through the adjustable air inlet window 5.
The method for ventilating based on the culture system can be regulated and controlled according to the outside temperature and has the following four ventilation modes (4-level ventilation): winter (dirty processing of excrement) ventilation mode, spring autumn (dirty processing of excrement) ventilation mode, the dirty processing of excrement in summer ventilation mode, summer ventilation mode:
1) winter (fecal sewage treatment) ventilation mode
As shown in fig. 11 and 13, the roller shutter 16 is completely unfolded to close the wet shutter 15, the sliding shutters 14 at both ends of the breeding house are closed, and the adjustable air inlet window 5 and the small-displacement fan 11 are opened;
the temperature outside the house is lower in winter, the wet curtain is closed through the roller shutter, and the sliding curtains on the two sides are closed. Fresh air outside the house is preheated by the solar heat collecting plate outside the house, enters the air chamber through the adjustable air inlet window 5, uniformly enters the house through the ceiling air inlet window 7 or through the air outlet 13 of the air inlet pipeline 12, enters the septic tank 18 through the leak floor 17 to form a vertical airflow organization from top to bottom, and then is converged into the trench air duct 8 through the waste gas discharge branch pipe 9 and is discharged outside the house through the small-displacement fan 11.
Because the cold air outside the house is preheated by the solar heat collecting plate, the heating energy consumption is greatly reduced, the livestock and poultry cold stress caused by increasing the ventilation volume in the house during the feces treatment is avoided, the concentration of harmful gas in the house is also reduced, and the formed vertical airflow tissue ventilation mode further reduces the concentration of harmful gas in the septic tank rising to the activity area of the livestock and poultry.
2) Spring and autumn (fecal sewage treatment) ventilation mode
As shown in fig. 12 and 13, the roller shutter 16 is completely unfolded to close the wet shutter 15, the sliding shutters 14 at both ends of the breeding house are closed, and the adjustable air inlet window 5, the small-displacement fan 11 and part of the large-displacement fan 10 are opened;
the outer temperature fluctuation range of spring and autumn house is big, and fresh air preheats the back through the outer solar energy heat-collecting plate of house, is favorable to improving into house air temperature, reduces the temperature fluctuation range in the house, and also greatly increased advances the house air volume, also need increase the house interior air volume when the excrement is dirty moreover handled, and it seals to roll up the curtain this moment, and the both sides sliding curtain is closed. After preheating, fresh air enters the air chamber through the adjustable air inlet window, uniformly enters the house through the ceiling air inlet window 7 or through the air outlet holes 13 of the air inlet pipeline 12, and then enters the septic tank 18 through the leakage floor 17 to form a vertical airflow structure from top to bottom. At the moment, because the ventilation volume is increased compared with the winter, part of the large-displacement fans need to be started, part of waste gas is collected into the trench air duct 8 through the waste gas branch pipe 9 and then is discharged out of the house through the small-displacement fan 11, and the other part of waste gas is directly discharged out of the house through the septic tank by the large-displacement fans 10. Because the cold air is preheated by the solar heat collecting plate, the heating energy consumption is greatly reduced, the livestock and poultry cold stress caused by increasing the ventilation volume in the house during the feces treatment is avoided, the concentration of harmful gas in the house is also reduced, and the formed vertical air flow tissue ventilation mode further reduces the concentration of harmful gas in the septic tank rising to the activity area of the livestock and poultry.
3) Summer ventilation mode
As shown in fig. 14 and 15, the adjustable air inlet window 5 is closed, the roller shutter 16 is retracted, the water pump of the wet shutter 15 is started, the sliding shutters 14 at the two ends of the breeding house are opened, and the large-discharge fan 10 is started;
the temperature outside the house is higher in summer, and the adjustable air inlet window 5 is closed at the moment, so that air heated by the solar heat collecting plate 4 is prevented from entering the house. The roller shutters are folded with the wet curtains to be opened, the sliding curtains 14 are all opened, hot air outside the house is cooled through the wet curtains 15 and enters the air chamber, and the large-displacement fan is opened, so that tunnel ventilation in a horizontal airflow organization mode formed in the house is directly discharged out of the house through the large-displacement fan 10. The horizontal airflow organization mode of tunnel ventilation forms a certain wind speed in an animal activity area to form an air cooling effect, so that the heat stress of livestock and poultry in the house is reduced. At the moment, the ventilation volume is large, and the concentration of harmful gas in the house is low.
4) Summer fecal sewage treatment ventilation mode
As shown in fig. 16 and 17, the adjustable air inlet window 5 is closed, the roller shutter 16 is retracted, the water pump of the wet shutter 15 is opened, the sliding shutters 14 at the two ends of the breeding house are both closed, and the large-displacement fan 10 and the small-displacement fan 11 are opened.
When the feces is treated in summer, the vertical ventilation airflow organization mode from top to bottom is adopted to prevent the harmful gas in the septic tank from rising to the movable area of the livestock and poultry. Because the temperature outside the house is higher, the adjustable air inlet window 5 is closed, and the air heated by the solar heat-collecting plate 4 is prevented from entering the house. At the moment, the roller shutters 16 are folded up and opened, the sliding shutters are closed, hot air outside the house is cooled by the wet shutters 15, enters the air chamber, uniformly enters the house through the ceiling air inlet windows 7 or through the air outlet holes 13 of the air inlet pipeline 12, and then enters the septic tank 18 through the perforated floor 17, so that a vertical airflow organization mode from top to bottom is formed. At the moment, because the large-displacement fan 10 and the small-displacement fan 11 are both started, the ventilation volume is large, a part of waste gas is converged into the trench air duct 8 through the waste gas exhaust branch pipe 9 and is discharged out of the house through the small-displacement fan 11, and the other part of waste gas is directly discharged out of the house through the septic tank by the large-displacement fan 10.
By adopting the 4-level organized ventilation, the low-energy-consumption operation and accurate ventilation of the breeding house can be realized, a suitable growth space is created for livestock and poultry, particularly, when excrement is treated, a vertical airflow structure from top to bottom is formed, the upward movement of toxic and harmful gas with suddenly rising concentration is effectively inhibited, and the toxic and harmful gas is discharged out of the breeding house as soon as possible.
Claims (2)
1. A cultivation system with low energy consumption and capability of reducing the concentration of harmful gas in a house is characterized by comprising a cultivation house, a gas chamber arranged at the front end of the cultivation house and a ventilation chamber arranged at the rear end of the cultivation house; a breeding area is arranged in the breeding house, a leaking floor and a solid floor are arranged in the breeding area, a septic tank is arranged below the leaking floor, a trench air duct is arranged below the solid floor, the septic tank and the trench air duct are arranged from front to back, the septic tank is communicated with the ventilation chamber, the trench air duct is directly communicated to the outside of the ventilation chamber, a plurality of waste gas exhaust branch pipes are sequentially arranged on the side wall of the trench air duct from front to back, the waste gas exhaust branch pipes communicate the upper space of the septic tank with the trench air duct, the two ends of the breeding house are provided with openable sliding curtains, the wall at the front end of the air chamber is provided with an adjustable air inlet window and a wet curtain, the outside of the adjustable air inlet window is provided with a solar heat-collecting plate, a retractable roller shutter is arranged outside the wet shutter, an air inlet channel from front to back is arranged in the upper space in the breeding house and is communicated with the air chamber, the air inlet channel is provided with a plurality of air outlets, and fans are arranged on the wall at the rear end of the air exchange chamber and the tail end of the trench air channel; the cultivation system is provided with a ceiling, a space between the ceiling and the top of the cultivation system forms the air inlet channel, and a plurality of air outlet windows are formed in the ceiling; the air inlet channel is an air inlet pipeline arranged above the culture area, and a plurality of air outlet holes are formed in the air inlet pipeline; a large-displacement fan is arranged on the wall at the rear end of the air exchange chamber, and a small-displacement fan is arranged at the tail end of the trench air duct;
the breeding system can be regulated and controlled to form vertical airflow ventilation from top to bottom in the livestock and poultry house, and the system can be regulated and controlled according to the temperature outside the house and has the following four ventilation modes: winter (dirty processing of excrement) ventilation mode, spring autumn (dirty processing of excrement) ventilation mode, the dirty processing of excrement in summer ventilation mode, summer ventilation mode:
1) winter (fecal sewage treatment) ventilation mode
The roller shutters are completely unfolded to seal the wet shutters, the sliding shutters at the two ends of the breeding house are closed, and the adjustable air inlet window and the small-displacement fan are opened;
2) spring and autumn (fecal sewage treatment) ventilation mode
The roller shutters are completely unfolded to seal the wet shutters, the sliding shutters at the two ends of the breeding house are closed, and the adjustable air inlet window, the small-displacement fan and part of the large-displacement fan are opened;
3) summer ventilation mode
Closing the adjustable air inlet window, retracting the roller shutters, starting the wet curtain water pump, opening the sliding curtains at the two ends of the breeding house, and starting the large-discharge fan;
4) summer fecal sewage treatment ventilation mode
And closing the adjustable air inlet window, folding the roller shutter, opening the wet curtain water pump, closing the sliding curtains at the two ends of the breeding house, and opening the large-displacement fan and the small-displacement fan.
2. The cultivation system with low energy consumption and the capability of reducing the concentration of harmful gases in a house as claimed in claim 1, wherein a cavity is formed between the solar heat collecting plate and the wall surface where the adjustable air inlet window is located, and the solar heat collecting plate is made of thin-wall porous materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064489.1A CN110050702B (en) | 2019-01-23 | 2019-01-23 | Low-energy-consumption breeding system capable of reducing concentration of harmful gas in shed and ventilation method |
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| CN201910064489.1A CN110050702B (en) | 2019-01-23 | 2019-01-23 | Low-energy-consumption breeding system capable of reducing concentration of harmful gas in shed and ventilation method |
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| CN110050702A CN110050702A (en) | 2019-07-26 |
| CN110050702B true CN110050702B (en) | 2021-05-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111053037A (en) * | 2020-02-25 | 2020-04-24 | 福建省农科环保设备有限公司 | Closed square cabin pigsty and pig raising method |
| CN113100072B (en) * | 2021-03-09 | 2022-11-29 | 四川金梓源农业有限公司 | Building pig raising system |
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