Pigsty epidemic prevention combined air environment protection system and method
Technical Field
The invention belongs to the technical field of pigsty ventilation, and particularly relates to a pigsty epidemic prevention combined air environment protection system and method.
Background
Along with the continuous improvement of intensive, large-scale and specialized levels of pig breeding in China, the living environment of the pigs is improved by people, and especially the problem of building the air environment of a pigsty is increasingly emphasized. The air environment of the pigsty is an important factor influencing the health and the production performance of the live pigs, the ventilation design of the current live pig large-scale farm is large in randomness, and the phenomena of unreasonable airflow organization, dirty indoor environment and foul odor and peculiar smell of the pigsty are common. The bad air environment of the piggery can affect the growth rate of the live pigs, increase the risk of epidemic diseases of the live pigs and damage the labor productivity and even the health of the workers in the farm. In addition, the foul odor of the piggery can cause serious damage to the farm and the environment around the farm.
At present, the pigsty ventilation modes mainly comprise natural ventilation and mechanical ventilation. The natural ventilation mainly depends on indoor and outdoor temperature difference and wind pressure difference, has great energy-saving potential, but is greatly influenced by outdoor climate conditions, so the natural ventilation is less applied to modern pig farms. The mechanical ventilation has little dependence on outdoor climatic conditions, and is a convenient ventilation mode. The common mechanical ventilation mode in the pigsty is a wet curtain fan longitudinal ventilation mode, a wet curtain and a fan are respectively arranged on gable walls at two ends, negative pressure is formed by draught of the fan, and outdoor air enters the pigsty after being cooled by the wet curtain. However, there are a number of disadvantages with this method of ventilation: (1) the temperature and the speed in the pigsty are distributed seriously unevenly, the air temperature is gradually increased from the wet curtain to the fan, and a local high-temperature area exists; (2) the air supply flow is mixed with harmful gas in the pigsty violently, the risk of spreading respiratory diseases in the pigsty is increased, and the quality of air breathed by live pigs is poor; (3) outdoor fresh air is directly sent into the room in winter, and low-temperature air supply without preheating easily causes cold stress and diseases of live pigs; (4) the environment in the pigsty is poor in adjustability, and independent regulation and control can not be carried out in different areas and different application scenes. Therefore, the corresponding ventilation and pigsty ordinary-time and live pig epidemic disease high-occurrence-period air environment guaranteeing method is provided based on the live pig breeding environment characteristics, and has important significance for improving the air environment quality and the ventilation efficiency of the pigsty, reducing the concentration of harmful gas in the pigsty, reducing the pathogenic risk of the live pig, preventing epidemic and killing pathogenic bacteria of the pigsty in the live pig epidemic disease high-occurrence period, reducing the pathogenic and lethal rates of the live pig and improving the production performance of the live pig.
Disclosure of Invention
The invention aims to provide a pigsty epidemic prevention combined air environment protection system and a method, and simultaneously solves the problems of uneven internal temperature of a pigsty and pigsty epidemic prevention in a live pig epidemic disease period.
The invention is realized by the following technical scheme:
a pigsty epidemic prevention combined air environment protection system comprises a control system, an air inlet pipeline, an air inlet tunnel and a plurality of adherent jet generators;
the adherence jet generator is communicated with an air inlet tunnel through an air inlet pipeline, and the air inlet tunnel is arranged outside the pigsty and is buried underground;
one side of the adherence jet generator is provided with an air inlet which is communicated with an air inlet pipeline, the air inlet pipeline is provided with an air volume regulating valve and an air volume sensor, and the air volume sensor and the air volume regulating valve are connected with a control system;
an air outlet is formed in the lower side of the wall-attached jet flow generator, the air outlet is tightly attached to the side wall of the pigsty, and a flow guide member is arranged below the air outlet;
the floor of the pigsty adopts an overhead floor, the upper part of the overhead floor is divided into a plurality of pigsty areas, a temperature sensor is arranged in each pigsty area, and the adherent jet flow generators are correspondingly arranged on the side walls corresponding to each pigsty area; the temperature sensor is connected with the control system;
the lower part of the raised floor forms an odor exhaust area;
the middle area of the raised floor adopts a leaky floor, and the upper space of the raised floor is communicated with the odor discharging area;
the air inlet channel, the air inlet pipeline, the wall-attached jet flow generator and the odor discharge area form an air supply-exhaust system.
Further, the air inlet pipeline comprises an air inlet main pipe, a bypass air inlet pipe and a plurality of air inlet branch pipes arranged on two sides of the air inlet main pipe;
the air inlet main pipe is communicated with one end of an air inlet tunnel, the other end of the air inlet tunnel is connected with an outdoor air inlet vertical pipe, the outdoor air inlet vertical pipe is connected with a variable frequency fan and is provided with an air volume sensor, and the air volume sensor is connected with a control system;
the air inlet is arranged on the side surface of the adherence jet generator and comprises a main air inlet and a bypass air inlet, the main air inlet is connected with the air inlet branch pipe, and the bypass air inlet is connected with the bypass air inlet pipe;
the air volume regulating valve is arranged on the air inlet branch pipe and the bypass air inlet pipe.
Furthermore, the front end of the air inlet main pipe is connected with a bypass medicine adding pipe for adding solid medicines.
Furthermore, an exhaust passage is arranged at the lower part of the side wall, a plurality of lower exhaust outlets are arranged at the side edge of the odor exhaust area, and the lower exhaust outlets are communicated with the exhaust passage; the lower air outlet is provided with a variable frequency fan and an air volume sensor which are connected with a control system.
Further, a roof air outlet is formed in the roof of the pigsty, an air exhaust fan and an air volume sensor are arranged at the position of the roof air outlet, a temperature sensor is arranged in the roof area inside the pigsty, and the air exhaust fan, the air volume sensor and the temperature sensor are connected with a control system.
Further, still lay water intake system in the upper portion space of pig house, water intake system includes the main pipe of intaking, is connected with a plurality of branch pipe of intaking in the both sides of the main pipe of intaking, is equipped with the atomizer at the end of every branch pipe of intaking, set up motorised valve and flow sensor on the branch pipe of intaking, motorised valve and flow sensor are connected with control system.
Furthermore, a bypass liquid adding pipe for adding liquid medicine is arranged at the front end of the water inlet main pipe.
Further, the adherence jet generator sets up in pig house side wall upper portion, and adherence jet generator is inside to be equipped with the orifice plate that flow equalizes.
Further, the flow guide component comprises a rotating shaft, a support frame and a two-way shape memory alloy flow guide flat plate, the support frame is installed on the side wall, the rotating shaft is hinged on the support frame, the rotating shaft is connected with the two-way shape memory alloy flow guide flat plate, and the two-way shape memory alloy flow guide flat plate is connected with a plurality of metal flow guide flat plates with the same width; the plurality of metal flow guide flat plates are connected in a foldable mode.
The invention also discloses a piggery epidemic prevention combined air environment protection method, which comprises the following steps:
the temperature sensor monitors the temperature of each pigsty area in real time and sends the temperature to the control system, and the control system independently adjusts the air volume adjusting valve of each pigsty area according to the temperature of the pigsty area so as to adjust the air intake of the air inlet pipeline; meanwhile, the air quantity sensor monitors the air quantity of each air inlet pipeline in real time and sends the air quantity to the control system, and the control system adjusts the air inlet quantity of the air inlet pipelines according to the positive pressure or negative pressure state required in the pigsty;
external air enters an air inlet pipeline from an air inlet tunnel, enters an adherence jet generator through the air inlet pipeline, is sent out from an air outlet after passing through the adherence jet generator, flows downwards attached to a wall surface, impacts a flow guide member and then is conveyed to a pigsty area in a deflection way;
after flowing through the pig body, the air enters the odor discharging area through the leak floor and is discharged out of the pigsty through the odor discharging area.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a pigsty epidemic prevention combined air environment protection system, which comprises a control system, an air inlet pipeline, an air inlet tunnel and a plurality of adherent jet generators; the wall-attached jet generator is communicated with the air inlet tunnel through an air inlet pipeline, the wall-attached jet generator is communicated with the air inlet pipeline, an air volume regulating valve and an air volume sensor are arranged on the air inlet pipeline, and the air volume sensor and the air volume regulating valve are connected with a control system; a flow guide component is arranged below the adherence jet generator; the lower part of the raised floor forms an odor exhaust area; the floor of the pigsty adopts an overhead floor, the upper part of the overhead floor is divided into a plurality of pigsty areas, each pigsty area is provided with a temperature sensor and an adherence jet generator which are mutually independent, a control system can independently adjust the air supply volume of each pigsty area, an air inlet tunnel, an air inlet pipeline, the adherence jet generator and an odor discharge area form an air supply-exhaust system, fresh air is directly sent to a live pig breathing area from a relatively clean area and then sent to a polluted area and discharged from a leaky floor, the live pigs are in an upwind direction, and the quality of the air breathed by the live pigs is improved; the pigsty epidemic prevention combined air environment protection system divides the pigsty into a control area (live pig activity area) and a non-control area (pigsty upper space), and directly supplies air to the live pig activity area at the lower part of the pigsty by taking the protection of the environment of the control area as a target, and the air supply load is only one part of the traditional air supply mode, so that the energy is effectively saved; due to the orientation and the flow guiding effects of the side walls and the flow guiding components, the mixing and entrainment amount of the supplied air flow and harmful polluted gas is greatly reduced, the propagation risk of respiratory diseases in the pigsty is reduced, and meanwhile, the air supply speed retentivity is good and the energy utilization rate is high; the harmful polluted gas is directly discharged from a harmful polluted gas generating area, so that the diffusion range and the retention time of the harmful polluted gas in the pigsty are reduced, and the pollutant removing efficiency is higher.
Furthermore, the air inlet pipeline comprises an air inlet main pipe, an air inlet branch pipe and a bypass air inlet pipe, the air inlet branch pipe is provided with an air volume adjusting valve, the air volume can be adjusted according to the type, the number and the like of the live pigs in the regulated and controlled pigsty area, the subarea control is realized, and the purpose of energy conservation is achieved; the air volume regulating valve of the bypass air inlet pipe is opened in winter, relatively hot air near the pigsty ceiling is sent into the adherence jet generator and is mixed with relatively cold air sent in from the outside, the purpose of preheating the cold air is achieved, waste heat on the upper part of the space is effectively utilized, and energy consumption is reduced.
Furthermore, in the epidemic disease period of the live pigs, the powder medicine can be added into the air supply pipeline through the bypass medicine adding pipe, is pneumatically conveyed through the air supply system and is directly sent to the breathing zone of the live pigs, and the aim of targeted medicine application is achieved.
Further, set up the roof air exit on the roof, only open in summer, there is temperature gradient in the pig house vertical direction, and upper portion air temperature is high, and the roof air exit is in time discharged the hot-air on space upper portion, effectively reduces average temperature in the pig house.
Furthermore, a water inlet system is arranged at the upper part of the pigsty, the water inlet system comprises a main water inlet pipe and a branch water inlet pipe, the pressurized water is transmitted and distributed to the atomizing nozzles above the pigsties through the main water inlet pipe and the branch water inlet pipe to generate uniform fine water mist, evaporation cooling is realized, and the direction, the flow and the atomizing degree of the nozzles of the atomizing nozzles can be adjusted to ensure that fog drops are effectively evaporated and cooled in the falling process and do not fall on the pigsties; on the other hand, harmful gases such as ammonia gas and the like are fully contacted with the water mist and dissolved in water, so that the concentration of the harmful gases is further reduced; the atomizing nozzle can be opened in summer, absorbs heat through spray evaporation, and reduces the air temperature of the pigsty with the air supply and airflow in a synergistic manner.
Furthermore, when the pig epidemic disease is in a high-incidence period or the requirements of sterilization of the disease bacteria are met, the liquid medicine can be added into the spraying pipeline system through the medicine adding device, and the medicine is uniformly sprayed out along with the water mist through the atomizing nozzle, so that the purposes of epidemic prevention and disease treatment are achieved.
Furthermore, the flow guide component comprises a rotating shaft, a support frame and a two-way shape memory alloy flow guide flat plate, the height and the angle of the two-way shape memory alloy flow guide flat plate can be adjusted, different application scenes can be met, the height of the two-way shape memory alloy flow guide flat plate can be correspondingly adjusted according to the height of a live pig in the pigsty, and fresh air can be guaranteed to be accurately sent to a live pig breathing area all the time; for example, when hot wind is sent in winter, the problem that the airflow deflects upwards under the action of the thermal floating lift force can be solved by adjusting the angle of the two-way shape memory alloy flow guide flat plate to be horizontally deflected. Meanwhile, the diversion flat plate can be folded to adjust the length of the diversion plate, so that the air supply range is adjusted, and the like, and different air supply requirements are met.
Drawings
FIG. 1 is a side view of a piggery epidemic prevention combined air environment protection system;
FIG. 2 is a schematic layout of a ventilation duct system of a pigsty epidemic prevention combined air environment protection system;
FIG. 3 is a schematic view of an air intake tunnel system of a pigsty epidemic prevention combined air environment protection system;
FIG. 4 is a schematic diagram of a spray system arrangement of a piggery epidemic prevention combined air environment protection system;
FIG. 5 is a three-dimensional schematic view of an adherent jet device (at a 90 diversion angle);
wherein, 1 is a roof; 2 is a side wall; 3 is a swinery; 4 is a raised floor; 5 is a leaky floor; 6 is a partition wall; 7 is an excrement ditch; 8 is a dung scraping device; 9 is an air inlet tunnel; 10 is an outdoor air inlet vertical pipe; 11 is an air inlet main pipe; 12 is a bypass dosing pipe; 13 is an air inlet branch pipe; 14 is a bypass air inlet pipe; 15 is an air volume adjusting valve; 16 is an adherence jet generator; 161 is a flow equalizing pore plate; 162 is an air outlet; 163 is a main air inlet; 164 is a bypass air inlet; 17 is a flow guide component; 171 is a rotating shaft; 172 is a supporting frame; 173 is a two-way shape memory alloy flow guide plate; 174 is a metal flow guide flat plate; 18 is a roof air outlet; 19 is an odor discharging area; 20 is a lower air outlet; 21 is an exhaust passage; 22 is a main water inlet pipe; 23 is a water inlet branch pipe; 24 is an electric valve; 25 is an atomizing spray head; 26 is a bypass filler pipe.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, which are illustrative of the invention and are not to be construed as limiting. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the invention discloses a pigsty epidemic prevention combined air environment protection system, which comprises a control system, an air inlet pipeline, an air inlet tunnel 9 and a plurality of adherent jet generators 16; the adherence jet generator 16 is communicated with the air inlet tunnel 9 through an air inlet pipeline, and the air inlet tunnel 9 is arranged outside the pigsty and buried underground; one side of the adherence jet generator 16 is provided with an air inlet which is communicated with an air inlet pipeline, the air inlet pipeline is provided with an air volume regulating valve 15 and an air volume sensor, and the air volume sensor and the air volume regulating valve 15 are connected with a control system;
an air outlet 162 is formed in the lower side of the adherence jet flow generator 16, the air outlet 162 is tightly attached to the side wall, and a flow guide member 17 is arranged below the air outlet 162;
the floor of the pigsty adopts an overhead floor 4, the upper part of the overhead floor 4 is divided into a plurality of pigsty areas, a temperature sensor is arranged in each pigsty area, and the adherent jet flow generator 16 is correspondingly arranged on the side wall 2 corresponding to each pigsty area; the temperature sensor is connected with the control system;
an odor discharging area 19 is formed at the lower part of the raised floor 4; the middle part of the raised floor 4, namely the rear half part of the pigsty area adopts a leaky floor 5, and the upper space of the raised floor 4 is communicated with an odor discharging area 19;
the air inlet channel 9, the air inlet pipeline, the wall jet flow generator 16 and the odor discharging area 19 form an air supply-exhaust system.
As shown in fig. 5, the wall-attached jet generator 16 is disposed on the upper portion of the sidewall 2 of the pigsty, a flow equalizing pore plate 161 is disposed inside the wall-attached jet generator 16 for stabilizing air flow, reducing air supply turbulence and improving air supply uniformity, an air outlet 162 is disposed on one side of the lower portion of the wall-attached jet generator 16 close to the sidewall 2, and a main air inlet 163 and a bypass air inlet 164 are disposed on the side. The air inlet pipeline comprises an air inlet main pipe 11, a bypass air inlet pipe 14 and a plurality of air inlet branch pipes 13 arranged at two sides of the air inlet main pipe 11; the main air inlet 163 is connected with the air inlet branch pipes 13, the bypass air inlet 164 is connected with the bypass air inlet pipe 14, the air inlet branch pipes 13 and the bypass air inlet pipe 14 are respectively provided with an air volume regulating valve 15, and the air inlet branch pipes 13 are communicated with the air inlet main pipe 11.
As shown in fig. 2, the front end of the air inlet main pipe 11 is connected with a bypass medicine feeding pipe 12 for feeding solid medicines, when the medicine feeding requirement is met, the bypass medicine feeding pipe 12 is opened, and powdery medicines are conveyed by air force of an air supply system and directly fed to a live pig breathing area.
As shown in fig. 3, the main air intake pipe 11 communicates with the underground air intake duct 9. The air inlet tunnel 9 is buried underground and enters the pigsty from the outdoor underground, the other end of the air inlet tunnel 9 is connected with an outdoor air inlet vertical pipe 10, and the outdoor air inlet vertical pipe 10 is provided with a variable frequency fan and an air volume sensor. The height from the lower edge of the air inlet of the outdoor air inlet vertical pipe 10 to the ground is more than or equal to 2m, and the air inlet is provided with a filter screen. The tunnel is used for introducing outdoor fresh air, can realize high-temperature air inlet cooling in summer and heating of cold air in winter, and saves the air treatment cost of the pigsty. The tunnel is generally arranged 2m below the ground, the length is not too short, the wind speed in the tunnel is preferably 0.5m/s, and the pipeline is made of corrosion-resistant materials with high heat conductivity coefficients so as to guarantee the heat exchange effect. Otherwise, the heat exchange effect is not ideal, and the air supply temperature requirement of the pigsty is difficult to meet.
As shown in fig. 5, the flow guiding member 17 is disposed directly below the adherent jet generator 16, and the flow guiding member 17 is composed of a rotating shaft 171, a supporting frame 172, and a two-way shape memory alloy flow guiding plate 173. According to different air supply height requirements, a plurality of groups of supporting frames 172 are arranged along the height direction of the side wall 2, a rotating shaft 171 is arranged on the supporting frames 172, and the rotating shaft 171 is connected with a two-way shape memory alloy diversion flat plate 173 and used for adjusting the air supply angle by 0-180 degrees. The two-way shape memory alloy diversion flat plate 173 is connected with a plurality of metal diversion flat plates 174 with the same width, and the plurality of metal diversion flat plates 174 with the same width can be partially or completely folded to realize the adjustment of diversion length.
The two-way shape memory alloy diversion flat plate 173 has a shape memory effect, the air supply angle in winter is alpha, and alpha is 105 degrees recommended to supply air horizontally and downwards to overcome the buoyancy force of hot air flow; the air supply angle in summer is beta, and the recommended beta is 90 degrees, namely horizontal air supply. The two-way shape memory alloy diversion plate 173 can automatically change the air supply angle according to the air supply temperature through the self shape memory effect, and is suitable for the air supply requirements in different seasons without manual adjustment. When air supply at a certain angle is required, the air supply angle can be adjusted from 0 to 180 degrees by the rotating shaft 171. In addition, the two-way marmen diversion plate 173 may be set at a fixed angle for fixed angle air supply; it can also periodically rotate around the rotation axis 171 within a certain angle range to form a dynamic air supply effect close to natural wind.
As shown in fig. 2, the slotted floor 5 is disposed at the rear half part of the pigsty 3, the lower part of the slotted floor 5 is a dung ditch 7 for collecting the dung and urine of the live pig, and the dung ditch 7 is provided with a dung scraping device 8 for periodically discharging the dung and urine in the dung ditch 7. Partition walls 6 are arranged on two sides of the excrement ditch 7 and used for partitioning the excrement ditch 7 and the odor exhaust area 19, and the height of each partition wall 6 is lower than the height of the floor, so that the excrement-separating and air-exhausting effects are achieved.
As shown in fig. 1 and 2, the odor discharge zone 19 is located under the raised floor 4, separated from the manure pit 7 by a partition wall 6; the side wall of the odor discharging area 19 is provided with a lower air outlet 20, and the lower air outlet 20 is provided with a variable frequency fan. The odor in the pigsty passes through the leaking floor 5 and the excrement ditch 7 under the suction action of the fan, reaches the odor exhaust area 19, is exhausted to the exhaust passage 21 from the lower exhaust outlet 20, is treated uniformly and is exhausted to the outside. The invention can discharge the odor in time in the source area of odor generation, effectively reduce the retention time of the odor in the pigsty, reduce the diffusion of the odor in the pigsty along with the airflow, and has high harmful gas removal efficiency.
As shown in figure 1, a plurality of roof exhaust outlets 18 are uniformly arranged along the longitudinal direction of the roof of the pigsty, and the roof exhaust outlets 18 are provided with axial-flow type roof exhaust fans. The air outlet is arranged on the roof, so that the characteristic of the temperature gradient is effectively utilized, the air in the upper high-temperature area can be timely exhausted in summer, and the air outlet has an important effect of reducing the temperature of the air in the pigsty.
As shown in fig. 4, a water inlet system is further disposed in the upper space of the pigsty, the water inlet system includes a main water inlet pipe 22, a plurality of branch water inlet pipes 23 are symmetrically connected to two sides of the main water inlet pipe 22, an atomizing nozzle 25 is disposed at the end of each branch water inlet pipe 23, an electric valve 24 and a flow sensor are disposed on each branch water inlet pipe 23, and the electric valve 24 and the flow sensor are connected to a control system. The direction of the atomizing nozzle 25 is adjustable, and the flow and the atomizing degree are adjustable.
More preferably, the front end of the main water inlet pipe 22 is provided with a bypass liquid adding pipe 26 for adding liquid medicine.
Inside swinery 3 of pig house divide into two and arrange longitudinally, set up the passageway between two, and every row divides a plurality of swinery region, the swinery region sets up adherence efflux generator 16, water conservancy diversion component 17, lower part air exit 20, atomizer 25 respectively.
And each pigsty area is provided with a mutually independent control system, and the air supply volume and the spray volume of each pigsty area are independently adjusted. Can be adjusted according to the number and the growth stage of the live pigs in the pigsty, meets different requirements of different live pigs on the air environment, and simultaneously realizes energy conservation by zone control. The roof air outlet 18, the lower air outlet 20 and the air inlet main pipe 11 are all provided with air quantity sensors, the roof area and each pigsty area inside the pigsty are all provided with temperature sensors, and the air quantity sensors and the temperature sensors are connected with a control system.
In summer, when the temperature of the air in the roof area inside the pigsty is higher than 28 ℃, the control system realizes that the axial-flow type roof exhaust fan of the air outlet 18 on the roof of the pigsty is automatically opened to discharge the air in the high-temperature area on the upper part of the pigsty in time. External fresh air enters from the air inlet main pipe 11, is sent into the adherence jet generator 16 through the air inlet branch pipe 13, forms low-turbulence air after being equalized by the equalizing pore plate 161 of the adherence jet generator 16, is sent out from the air outlet 162, flows downwards along the adherence wall surface, impacts the two-way shape memory alloy diversion flat plate 173 and is conveyed to the breathing area of the live pigs in an offset manner. When the air flow is sent to the pig body, the speed is effectively attenuated, and the phenomenon that the wind speed is too high and uncomfortable blowing feeling is generated is avoided. After flowing through the pig body, the pig body passes through the leak floor 5, the excrement ditch 7 and the odor exhaust area 19, and is finally exhausted to the exhaust passage 21 from the lower exhaust outlet 20. Fresh air is firstly sent to a live pig breathing area and then is exhausted from a pollution area, the live pig is in an upwind direction, and the quality of the breathed air is high. The air flow of air supply and air exhaust forms directional flow, and the mixing and entrainment of the air flow of air supply and harmful polluted gas are reduced, so that the propagation risk of respiratory diseases in the pigsty is reduced.
The pressurized water is delivered to the atomizing nozzles 25 above the swinery 3 through the main water inlet pipe 22 and the branch water inlet pipes 23 to generate uniform water mist, so that evaporation and cooling are realized. The direction, the flow and the atomization degree of the spray head of the atomization spray head 25 can be adjusted to ensure that the fog drops are effectively evaporated and cooled in the falling process and do not fall on the pig body. On the other hand, harmful gases such as ammonia gas and the like are fully contacted with the fine water mist and dissolved in water, so that the concentration of the harmful gases is further reduced. The control system monitors the temperature of each pigsty area through the temperature sensor of each pigsty area, and correspondingly adjusts the flow of the roof air outlet 18, the air inlet main pipe 11, the lower air outlet 20 and the atomizing nozzle 25, so that the temperature of each pigsty area can meet the requirements. Meanwhile, the medicine can be sprayed to the area of the swinery 3 through the atomizing nozzle 25 by the bypass liquid adding pipe 26, so that the purposes of epidemic prevention and disease treatment of the live pigs are achieved. For powdery medicaments, the powdery medicaments are added into the air supply system through the bypass medicament adding pipe 12 and are directionally conveyed to a breathing zone of a live pig through pneumatic conveying of the air supply system, so that efficient medicament application is realized, and labor is saved.
In winter, the air outlet 18 on the roof of the pigsty is closed, so that hot air is prevented from flowing out; the air volume adjusting valve 15 on the bypass air inlet pipe 14 is opened, so that hot air near the ceiling of the roof and cold air sent in from the main air inlet pipe 11 and the branch air inlet pipe 13 outside the pigsty are uniformly mixed in the adherence jet generator 16, the air supply temperature of the air outlet 162 is improved, and cold stress of pigs caused by supercooling of the sent air is avoided. The angle of the two-way marmen diversion flat plate 173 is horizontally inclined downwards, so as to overcome the problem that when hot air is sent in winter, hot air flow deflects upwards under the action of heat buoyancy, and is difficult to reach the pig body. After the air supply flows through the pig body, the air supply flows through the leak seam floor 5, the excrement ditch 7 and the odor exhaust area 19 and is finally exhausted from the lower air outlet 20. The lower air outlet 20 can remove the generated odor in time, thereby improving the air quality in the pigsty. The control system monitors the air quantity of the air inlet main pipe 11 and the air outlet 20 at the lower part through the air quantity sensor, and adjusts the air quantity of the air inlet main pipe 11 and the air outlet 20 at each lower part through the air quantity adjusting valve 15, so that the total air inlet quantity of the pigsty is greater than the total air outlet quantity, the positive pressure state inside the pigsty is realized, and the generation of harmful wind in winter is avoided to the maximum extent. In the epidemic disease period of the live pigs, when epidemic prevention and killing requirements exist, on one hand, liquid medicines can be sprayed to the area of the swinery 3 through the atomizing nozzle 25 by the bypass liquid adding pipe 26; on the other hand, the powdery medicine can be added into the air supply system through the bypass medicine adding pipe 12 and is directionally conveyed to the head area of the live pig through the pneumatic conveying of the air supply system, so that the aims of efficient killing and epidemic prevention of the live pig in the epidemic disease stage are fulfilled.
The pigsty air environment guaranteeing system is high in practicability and good in adaptability, can be regulated and controlled according to different application scenes, and meets the requirements of regulation and control and guarantee of the pigsty air environment in the flat time and the epidemic situation of the live pigs. The temperature, the wind speed and the wind direction in the pigsty are adjustable and controllable, and the uniformity is good; the air feeding and exhausting form directional flow, and the pollution discharge efficiency is high; improve the quality of the breathing air of the live pigs and reduce the uncomfortable feeling of the live pigs. When the epidemic disease of the live pigs is in a high-incidence stage or epidemic prevention and killing requirements exist, the two sets of pesticide application systems can be started according to requirements, so that efficient killing and epidemic prevention of the pig house and disease treatment of the live pigs are realized, and the occurrence risk and the prevalence rate of respiratory infectious diseases of the pig house are reduced.
Organized directional ventilation is formed in the pig house, make full use of natural energy to the inside air circumstance of mode guarantee pig house of low energy consumption satisfies different seasons, different live pig types to the various demands of pig house environment. The problems of uneven ventilation airflow distribution of the pigsty, existence of ventilation dead corners, harmful wind, blowing sensation of live pigs and cold stress are solved; harmful gases such as ammonia gas, hydrogen sulfide and the like in the pigsty are not smoothly discharged, the ventilation efficiency is low, harmful polluted gases are diffused in a large range, and the air environment in the pigsty is severe. Meanwhile, the high-efficiency germ killing and epidemic prevention of the pigsty can be realized in the high-incidence period of the live pig epidemic disease, and the incidence rate of the live pig epidemic disease is reduced, so that the aim of improving the economic benefit of the live pig farm is fulfilled.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.