Organized vertical negative ion ventilation system for poultry breeding house

Abstract

The invention belongs to the technical field of poultry breeding ventilation, and particularly relates to an organized vertical negative ion ventilation system for a poultry breeding house. Most of existing poultry breeding house ventilation systems adopt a longitudinal French ventilation mode, have the problems that ventilation is unbalanced, contaminated air is prone to being accumulated in a concentrated mode, temperature and humidity are unbalanced, carbon dioxide is inconvenient to discharge and the like, and are difficult to cope with a high-density poultry breeding environment. According to the novel poultry breeding house ventilation system, a vertical organized ventilation mode of upper inlet and lower outlet is adopted, better ventilation of air in a poultry house is achieved, and a healthier ecological environment suitable for poultry is created. The poultry house specifically comprises a poultry house body, a plurality of evenly-distributed cages are arranged in the poultry house body, and a wet curtain and an ionization device are arranged in an air inlet chamber on one side of the outer portion of the poultry house body and used for controlling the temperature and humidity of fresh air and ionizing the fresh air into air with negative oxygen ions. An exhaust chamber is arranged on the other side outside the poultry house and used for filtering sundries, purifying waste gas and recycling cold and heat.

Description

Technical Field

[0001] The invention belongs to the technical field of poultry breeding ventilation, and in particular relates to an organized vertical negative ion ventilation system for a poultry breeding house. Background Art

[0002] 1. Current technical status: Existing poultry house ventilation systems mostly adopt the longitudinal French ventilation method, that is, the induced draft fan is set at the gable position on one longitudinal side of the poultry house. When working, under the negative pressure of the induced draft fan, the outside air enters from the other side of the poultry house gable and the small windows on both sides and the wet curtain entrance to complete the ventilation.

[0003] 2. Problems and shortcomings of the existing ventilation system: 1. The ventilation of the existing ventilation system is not balanced, and the dirty air in the front area of ​​the longitudinal fan side is easy to accumulate, making the poultry in this area susceptible to diseases; 2. The temperature on the air inlet side of the rear area varies greatly, the temperature and humidity on both sides of the poultry house are unbalanced, and the temperature control of the poultry house is difficult; 3. Carbon dioxide gas is 1.5 times heavier than air, so carbon dioxide is mostly deposited in the lower area of ​​the poultry house, resulting in low ventilation efficiency of carbon dioxide gas; 4. The air flow diffusion area in the house is large and is accompanied by turbulent cyclones, which can easily cause pathogenic microorganisms to spread and spread diseases. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes an organized vertical negative ion ventilation system for poultry houses. By arranging an air supply system above the poultry house and an exhaust system below the poultry house, a vertical ventilation effect of top-in and bottom-out is achieved. A new type of air flow distribution porous plate device is used to make the air flow more organized. The natural wind is ionized by an ionization device before entering the poultry house, thereby transforming the poultry house into a healthy negative oxygen ion environment.

[0005] To achieve the above object, the present invention adopts the following technical solution, including a poultry house, one side outside the poultry house is connected to an air inlet chamber through a pipeline, and the other side outside the poultry house is connected to an exhaust chamber through a pipeline; The air inlet chamber is equipped with a wet curtain and an ionization device; the exhaust chamber is equipped with a filtering device and an adsorption heat exchange device; A plurality of air inlet pipes connected to the air outlet of the air inlet chamber are arranged at the top of the poultry house, and a plurality of air exhaust pipes connected to the air inlet of the exhaust chamber are arranged at the bottom of the poultry house; A positive pressure fan is provided at the air outlet of the air inlet chamber, the positive pressure fan is connected to the air inlet pipeline, a negative pressure fan is provided at the air inlet of the exhaust chamber, the negative pressure fan is connected to the exhaust pipeline, and the air outlet of the negative pressure fan is connected to the filter device; The poultry house is provided with cages evenly arranged in several layers and rows. The air outlets of the air inlet duct are arranged between two adjacent rows of cages and between the cages and the side walls of the poultry house. Several air outlets are arranged at certain intervals along the direction of the cages. The air inlet of the exhaust duct is arranged under the cages. Several air inlets are arranged at certain intervals along the direction of the cages. There are ventilation passages between the poultry house and the cages on both sides and between two adjacent rows of cages.

[0006] As a preferred embodiment of the present invention, the cages in the poultry house are evenly arranged in four layers and five rows.

[0007] As another preferred embodiment of the present invention, the air outlet of the air inlet duct has an air flow distribution porous plate device arranged toward the cage, and the air inlet of the exhaust duct has two air flow distribution porous plate devices respectively arranged toward the ventilation channels on both sides; the air flow distribution porous plate device includes a bucket-shaped shell, and a pipe interface for connecting to the pipeline is provided on the side with the smaller opening of the air flow distribution porous plate device, and a first porous plate, a second porous plate and a third porous plate are sequentially arranged inside the shell from the side with the smaller opening to the side with the larger opening.

[0008] As a third preferred embodiment of the present invention, the ionization device includes an ionization body, wherein an air inlet and an air outlet are respectively arranged on both sides of the ionization body, a high-voltage insulation box connected to an external power supply is arranged on the inner wall of the ionization body, and a plurality of rows of corona-level spiral wires are connected to the high-voltage insulation box. An anode tube row corresponding to the position of the corona-level spiral wire is also arranged inside the ionization body, and a flushing and sewage hopper used during maintenance is arranged at the bottom of the ionization body.

[0009] As a fourth preferred embodiment of the present invention, the filter device includes a filter cage net, the air inlet of the exhaust chamber is connected to the interior of the filter cage, and the adsorption heat exchange device includes an activated carbon rack and an air-water heat exchanger.

[0010] Beneficial effects of the present invention: The present invention proposes a novel organized vertical negative ion ventilation system for poultry breeding houses, which realizes vertical ventilation from top to bottom by arranging an air intake system above the poultry house and an exhaust system below the poultry house, and can better discharge carbon dioxide. In order to make the fresh air flow more organized and uniform, the present invention proposes a new type of air flow distribution porous plate device, so that the air flow in the poultry house is more uniform, and the temperature and humidity are more balanced; Before entering the poultry house, the fresh air is ionized by an ionization device to produce air with negative oxygen ions and a certain amount of ozone. After ionization, the fresh air can decompose and remove some harmful gases in the poultry house and inhibit and kill pathogenic microorganisms, creating a healthy negative oxygen ion environment, which can effectively prevent the occurrence and spread of diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a schematic top view of the overall structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the internal structure of the poultry house of the present invention.

[0013] Figure 3 It is a schematic diagram of the structure of the ionization device of the present invention.

[0014] Figure 4 It is a schematic diagram of the structure of the airflow distribution porous plate device of the present invention.

[0015] Figure 5 It is a flow chart of ventilation trend of the present invention.

[0016] In the accompanying drawings, 1 is a poultry house, 2 is an air inlet chamber, 3 is an exhaust chamber, 4 is a wet curtain, 6 is a filtering device, 7 is an adsorption heat exchange device, 8 is an air inlet pipeline, 9 is an exhaust pipeline, 10 is a positive pressure fan, 11 is a negative pressure fan, 12 is a cage, 13 is an air flow distribution porous plate device, 14 is a shell, 15 is a pipeline interface, 16 is a first porous plate, 17 is a second porous plate, 18 is a third porous plate, 19 is an ionization device, 20 is an ionization body, 21 is a high-voltage insulation box, 22 is a corona grade spiral wire, 23 is an anode tube row, 24 is a flushing sewage hopper, 25 is a channel door, and 26 is a manure conveyor. DETAILED DESCRIPTION

[0017] The present invention adopts the following technical scheme: Figure 1 and Figure 2 As shown, it includes a poultry house 1, which is 80 meters long, 16 meters wide, and 6 meters high. One side of the poultry house 1 is a poultry and egg discharging side with a passage door 25, and the other side of the poultry house 1 is a manure discharging side with a manure discharging conveyor 26. The poultry and egg discharging side outside the poultry house 1 is connected to two air inlet chambers 2 through a pipeline, and the two air inlet chambers 2 are symmetrically arranged. The manure discharging side outside the poultry house 1 is connected to two exhaust chambers 3 through a pipeline, and the two exhaust chambers 3 are symmetrically arranged. The air inlet chamber 2 is provided with a wet curtain 4 and an ionization device 19; the air outlet chamber 3 is provided with a filter device 6 and an adsorption heat exchange device 7; A plurality of air inlet pipes 8 connected to the air outlet of the air inlet chamber 2 are arranged at the top of the poultry house 1, and the diameter of the air inlet pipes 8 is 315 mm. A plurality of exhaust pipes 9 connected to the air inlet of the exhaust chamber 3 are arranged at the bottom of the poultry house 1, and the air outlet of the negative pressure fan 11 is connected to the filter device 6, and the diameter of the exhaust pipe 9 is 315 mm. A positive pressure fan 10 is provided at the air outlet of the air inlet chamber 2, and the positive pressure fan 10 is connected to the air inlet pipeline 8; a negative pressure fan 11 is provided at the air inlet of the exhaust chamber 3, and the negative pressure fan 11 is connected to the exhaust pipeline 9; The poultry house 1 is provided with cages 12 evenly arranged in several layers and rows. The air outlet of the air inlet duct 8 is arranged between two adjacent rows of cages 12 and between the cages 12 and the side wall of the poultry house 1. An air outlet is arranged every 1.6 meters along the direction of the cages 12. The air inlet of the exhaust duct 9 is arranged below the cages 12. An air inlet is arranged every 1.6 meters along the direction of the cages 12. There is a ventilation passage between the poultry house 1 and the cages 12 on both sides and between two adjacent rows of cages 12.

[0018] As a preferred embodiment of the present invention, the cages 12 in the poultry house 1 are evenly arranged in four layers and five rows. Six ventilation channels are formed inside the poultry house 1 according to the five rows of cages. This is a classic layout of cages in poultry breeding houses and can be adjusted as needed.

[0019] As another preferred embodiment of the present invention, Figure 4 As shown, the air outlet of the air inlet duct 8 has an air flow distribution porous plate device 13 arranged toward the cage 12, and the air inlet of the exhaust duct 9 has two air flow distribution porous plate devices 13 respectively arranged toward the ventilation channels on both sides; the two air flow distribution porous plate devices 13 at the air inlet of the exhaust duct 9 are arranged at an angle of 45° with the ground of the poultry house 1, and the air flow distribution porous plate device 13 includes a bucket-shaped shell 14, the side of the shell 14 with a smaller opening is circular, and the side of the shell 14 with a larger opening is square, the side of the air flow distribution porous plate device 13 with a smaller opening is provided with a pipeline interface 15 for connecting to the pipeline, and the inside of the shell 14 is sequentially provided with a first porous plate 16, a second porous plate 17 and a third porous plate 18 from the side with a smaller opening to the side with a larger opening.

[0020] The smaller opening side of the airflow distribution porous plate device 13 has a diameter of 160 mm, and the larger opening side is a square with a side length of 600 mm. The device is 350 mm high, and the plate thickness of the device is 1.5 mm, and the material is ABS engineering plastic.

[0021] The opening rate of the first porous plate 16, the second porous plate 17 and the third porous plate 18 is 40%, and the pore diameter is 10 mm.

[0022] An air regulating valve is provided between the connecting pipe of the air inlet pipeline 8 and the air flow distribution porous plate device 13 to adjust the fresh air flow of the near and far ends of the air flow distribution porous plate device 13 to achieve uniform distribution of the overall air volume.

[0023] The airflow distribution porous plate device 13 makes the airflow distribution of the fresh air more uniform.

[0024] As a third preferred embodiment of the present invention, Figure 3As shown, the ionization device 19 includes an ionization body 20, and air inlets and air outlets are respectively arranged on both sides of the ionization body 20. A high-voltage insulation box 21 connected to an external power supply is arranged on the inner wall of the ionization body 20, and a plurality of rows of corona-level spiral wires 22 are connected to the high-voltage insulation box 21. An anode tube row 23 corresponding to the position of the corona-level spiral wires 22 is also arranged inside the ionization body 20, and a flushing and draining bucket 24 used during maintenance is arranged at the bottom of the ionization body 20.

[0025] The corona zone formed by the corona level spiral wire 22 and the anode tube row 23 in the ionization body 20 has a flow cross-section of 2.56 square meters, a width of 1.6 meters, a height of 1.6 meters, and a corona zone length of 2 meters. Four ventilation ionization channels are formed between the corona level spiral wire 22 and the anode tube row 23. The spacing between each row of corona level spiral wires 22 is 400 mm, and the spacing between each row of anode tube rows 23 is 400 mm. The operating voltage is 72KV and the corona current is 0.1A.

[0026] The natural wind passing through the wet curtain chamber 4 enters the ionization device 19 through the air inlet on the ionization body 20. The natural wind is ionized into air with negative ions after passing through the ventilation channel between the corona-grade spiral wire 22 and the anode tube row 23. The air with negative ions is transported to the inside of the poultry house 1 by the positive pressure fan 10, creating a negative oxygen ion environment in the poultry house 1 to prevent the spread of epidemic diseases. The ion state has a strong electrochemical reaction activity, so the negative oxygen ions can decompose and remove toxic and harmful gases, such as ammonia, hydrogen sulfide odor, etc. in the poultry house, and can kill suspended microorganisms. Negative oxygen ions enter the body of poultry through the respiratory tract, which can improve immunity and benefit the health of poultry.

[0027] After the air is ionized, the positive pressure fan 10 and the pipeline of the rear air intake system are made of glass fiber reinforced plastics and PVC insulation materials to prevent the negative ions from decaying.

[0028] As a fourth preferred embodiment of the present invention, the filter device 6 includes a filter cage, the adsorption heat exchange device 7 includes an activated carbon shelf and an air-water heat exchanger, and the activated carbon shelf is integrated with the finned coil of the air-water heat exchanger to increase the heat exchange area and save space.

[0029] After the dirty exhaust gas is discharged into the exhaust chamber 3, feathers and other debris are filtered out by the filter cage. The dirty exhaust gas is then purified by activated carbon and the waste heat or waste cold is recovered before being discharged. The recovered heat or cold flows back to the heat source system through the return water pipeline of the heat exchanger.

[0030] like Figure 5As shown, natural wind passes through the wet curtain 4, which can adjust the temperature and humidity of the fresh air. Then the fresh air passes through the ionization device 19 and is ionized into air with negative ions. The air with negative ions is transported to the air inlet duct 8 in the poultry house 1 through the positive pressure fan 10. The air flow distribution porous plate device 13 at the air outlet of the air inlet duct 8 makes the fresh air flow more uniform. The fresh air with negative oxygen ions flows evenly from top to bottom in the poultry house 1, so that a healthy ecological environment of negative oxygen ions in the air is realized in the poultry house 1; the fresh air enters through one side of the passage door 25, ventilates in the poultry house 1, and is finally discharged from the manure discharge side. The exhaust gas is discharged into the exhaust chamber 3 through the exhaust duct 9 and the negative pressure fan 11. The filter cage net arranged at the air inlet of the exhaust chamber 3 will filter out the feathers and other debris in the dirty exhaust gas. Then the exhaust gas is purified by activated carbon and the air-water heat exchanger recovers the remaining cooling capacity or heat, and is finally discharged.

[0031] The temperature, humidity, ammonia concentration, hydrogen sulfide concentration, carbon dioxide concentration, oxygen concentration, negative oxygen ion concentration, pressure value, air turbidity and other index parameters in the poultry house 1 are equipped with corresponding sensors for precise monitoring. The corresponding sensor detectors are connected to the host computer and are equipped with an over-limit alarm system and a manual conversion switch to realize an intelligent and safe control system.

[0032] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. An organized vertical negative ion ventilation system for poultry breeding houses, comprising a poultry house, characterized in that: One side outside the poultry house (1) is connected to an air inlet chamber (2) via a pipeline, and the other side outside the poultry house (1) is connected to an air exhaust chamber (3) via a pipeline; A wet curtain (4) and an ionization device (19) are provided in the air inlet chamber (2); a filtering device (6) and an adsorption heat exchange device (7) are provided in the air outlet chamber (3); A plurality of air inlet pipes (8) connected to the air outlet of the air inlet chamber (2) are arranged at the top of the poultry house (1), and a plurality of air exhaust pipes (9) connected to the air inlet of the air exhaust chamber (3) are arranged at the bottom of the poultry house (1); A positive pressure fan (10) is provided at the air outlet of the air inlet chamber (2), the positive pressure fan (10) is connected to the air inlet pipeline (8), a negative pressure fan (11) is provided at the air inlet of the air exhaust chamber (3), the negative pressure fan (11) is connected to the air exhaust pipeline (9), and the air outlet of the negative pressure fan (11) is connected to the filter device (6); The poultry house (1) is provided with cages (12) evenly arranged in a plurality of layers and rows. The air outlets of the air inlet duct (8) are arranged between two adjacent rows of cages (12) and between the cages (12) and the side walls of the poultry house (1). A plurality of air outlets are arranged at certain intervals along the direction of the cages (12). The air inlet of the exhaust duct (9) is arranged below the cages (12). A plurality of air inlet ducts are arranged at certain intervals along the direction of the cages (12). Ventilation passages are provided between the poultry house (1) and the cages (12) on both sides and between two adjacent rows of cages (12).

2. The organized vertical negative ion ventilation system for poultry breeding houses as claimed in claim 1, characterized in that: The air outlet of the air inlet duct (8) has an air flow distribution porous plate device (13) arranged toward the cage (12), and the air inlet of the exhaust duct (9) has two air flow distribution porous plate devices (13) arranged toward the ventilation channels on both sides respectively; the air flow distribution porous plate device (13) comprises a bucket-shaped shell (14), the opening on one side of the shell (14) is larger than the opening on the other side, the side with the smaller opening of the air flow distribution porous plate device (13) is provided with a pipeline interface (15) for connecting to the pipeline, and the inside of the shell (14) is provided with a first porous plate (16), a second porous plate (17) and a third porous plate (18) in sequence from the side with the smaller opening to the side with the larger opening.

3. The organized vertical negative ion ventilation system for poultry breeding houses as claimed in claim 1, characterized in that: The ionization device (19) comprises an ionization body (20), the two sides of the ionization body (20) are respectively provided with an air inlet and an air outlet, a high-voltage insulation box (21) connected to an external power supply is provided on the inner wall of the ionization body (20), a plurality of rows of corona-grade spiral wires (22) are connected to the high-voltage insulation box (21), an anode tube row (23) corresponding to the position of the corona-grade spiral wires (22) is also provided inside the ionization body (20), and a flushing and drainage bucket (24) used during maintenance is provided at the bottom of the ionization body (20).

4. The organized vertical negative ion ventilation system for poultry breeding houses as claimed in claim 1, characterized in that: The filter device (6) comprises a filter cage net, the air inlet of the exhaust chamber (3) is connected to the interior of the filter cage, and the adsorption heat exchange device (7) comprises an activated carbon storage rack and an air-water heat exchanger.

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