Poultry house and air control method

Abstract

The application belongs to the technical field of breeding equipment, and provides a poultry breeding house, which comprises an outer wall and a roof, the outer wall and the roof cooperate to enclose an inner chamber, a first air inlet module is arranged in the inner chamber, the first air inlet module comprises an air inlet pipe arranged in the inner chamber and a first air exhaust fan arranged on the outer wall, the air inlet pipe extends along the length direction of the inner chamber, one end of the air inlet pipe is connected with the atmosphere, the other end of the air inlet pipe is opposite to the first air exhaust fan, the end of the air inlet pipe opposite to the first air exhaust fan is provided with a first opening, and the side wall of the air inlet pipe is provided with a plurality of second openings, the cold air outside the inner chamber enters the air inlet pipe through the first air exhaust fan, and is discharged from the first opening and the second opening, so that the hot air above the inner chamber can be mixed with the cold air near the air inlet pipe, the sinking of the cold air in a stream is avoided to affect the temperature regulation of the poultry, and a large amount of cold air can be avoided from entering the chicken house, and an air control method is further provided.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture equipment technology, specifically a poultry breeding house and air control method. Background Technology

[0002] The ventilation environment in poultry houses is crucial to poultry farming. A good ventilation system can promote air circulation, remove stale air and odors, reduce the growth of bacteria and viruses, provide fresh oxygen, and maintain suitable temperature and humidity, which is conducive to the healthy growth of poultry. In addition, proper ventilation can reduce the concentration of ammonia and carbon dioxide produced in feces, reduce the dust content in the air, and reduce the incidence of respiratory diseases in poultry. However, excessive or insufficient ventilation will have adverse effects on poultry, which may cause health problems such as colds, diarrhea, and stunted growth, thus affecting the profitability of poultry farming.

[0003] The inventors of this application previously proposed a solution for controlling the temperature inside a chicken house: CN201610918647.1 discloses a premixed ventilation chicken house, including a gable wall, side walls, and a roof. An inner chamber parallel to the side walls is also provided in the middle of the chicken house. The inner chamber includes an inner wall and an inner roof parallel to the side walls. A partition is sealed between the side walls and the inner walls. An air inlet plate is provided between the two inner walls below the inner roof. A pressure chamber is formed between the inner roof and the air inlet plate. A premixing chamber is formed between the inner roof and the roof. Several fans and several air inlet windows are evenly arranged on the inner roof. Several air inlets and several small air inlet windows are evenly arranged on the air inlet plate. Several wet curtains and exhaust vents are provided on the side walls. Several air outlet slots are evenly arranged on the inner walls.

[0004] In the above technical solution, the fan drives airflow into the mixing chamber for air mixing. The mixed air then falls on the chickens. However, at night, the outside temperature is low, and the chickens in the coop need to rest. With the help of the fan and wet curtain, a large amount of cold air will enter the coop, lowering the indoor temperature and affecting the chickens' body temperature regulation, which may cause problems such as colds in the flock. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems and provide a poultry breeding house. This breeding house uses a first exhaust fan to reduce the air pressure in the inner chamber, allowing cold air from outside the inner chamber to enter the air inlet pipe of the first air inlet module. In this way, the cold air will move along the extension direction of the pipe and be discharged from the first opening and the second opening. This allows the hot air above the inner chamber to mix with the cold air near the air inlet pipe, preventing large gusts of cold air from sinking and affecting the poultry's own temperature regulation, which could lead to problems such as colds and stress in the poultry in the inner chamber. Moreover, it can prevent large gusts of cold air from entering the chicken house. In addition, this invention also provides an air control method.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A poultry breeding shed includes an outer wall and a roof, which together form an inner chamber. A first air intake module is installed in the inner chamber. The first air intake module includes an air intake pipe and a first exhaust fan. The air intake pipe extends along the length of the inner chamber. One end of the air intake pipe is connected to the atmosphere, and the other end of the air intake pipe is directly opposite the first exhaust fan. A first opening is provided at the end of the air intake pipe facing the first exhaust fan. A plurality of second openings are provided on the side wall of the air intake pipe.

[0008] An air control method is provided, the method relating to a poultry house as described above; when the indoor temperature is less than a first preset temperature and greater than or equal to a second preset temperature, a first exhaust fan is turned on; when the indoor temperature is greater than the first preset temperature, a second exhaust fan is turned on.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] This invention incorporates three optimizations: 1. The air intake module is installed in the inner chamber; 2. A perforated duct air intake design is adopted; 3. The first exhaust fan is positioned at the end of the air intake duct. By using the first exhaust fan to reduce the air pressure in the inner chamber, cold outdoor air is allowed to enter the air intake duct of the first air intake module. This allows the cold air to move along the duct's extension direction and exit through the first and second openings, enabling the hot air in the inner chamber to mix with the cold air near the air intake duct. This prevents large gusts of cold air from sinking and affecting the poultry's own temperature regulation, thus avoiding problems such as colds in poultry houses. It also prevents large gusts of cold air from entering the poultry houses.

[0011] In a further optimized scheme, the first and second exhaust fans work together to achieve a variety of different control methods, so as to ensure that the temperature in the room is maintained at a comfortable level, which helps to protect the health of the poultry. Attached Figure Description

[0012] Figure 1 This is a perspective view of a poultry house as described in Example 1;

[0013] Figure 2 This is a schematic diagram of the ventilation pipe structure of a poultry house according to Example 1;

[0014] Figure 3 This is a schematic diagram of airflow in a poultry house according to Example 1;

[0015] The figure labels for each figure are as follows:

[0016] 1. Exterior wall; 11. Second air intake module; 111. Second exhaust fan; 12. Window; 121. Air guide plate; 2. Roof; 3. Interior room; 4. First air intake module; 41. First exhaust fan; 42. Air intake pipe; 421. First opening; 422. Second opening; 423. Connecting pipe; 4231. Air inlet. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] refer to Figures 1-3 A poultry breeding house includes an outer wall 1 and a roof 2, which together form an inner chamber 3 located above the poultry breeding house. A first air intake module 4 is provided in the inner chamber 3. The first air intake module 4 includes an air intake pipe 42 and a first exhaust fan 41. The air intake pipe 42 extends along the length of the inner chamber 3. One end of the air intake pipe 42 is connected to the atmosphere, and the other end of the air intake pipe 42 is directly opposite the first exhaust fan 41. A first opening 421 is provided at the end of the air intake pipe 42 facing the first exhaust fan 41. A plurality of second openings 422 are provided on the side wall of the air intake pipe 42.

[0020] At night or in low ambient temperatures, even with the fan power reduced to a very low level, the existing design (CN201610918647.1) can still cause stress to the chickens because the cold outdoor air will directly sink and come into contact with them. To address this application scenario, this solution incorporates three optimizations:

[0021] 1. Install the air intake module in interior room 3;

[0022] 2. An air inlet design with perforated pipes is adopted;

[0023] 3. The first exhaust fan is positioned opposite the end of the air inlet pipe;

[0024] Specifically, the first air intake module 4 is set in the inner chamber 3, which can create air circulation in the room and change the original top-down airflow path. The circulated air is discharged through the inner chamber 3. This design allows hot air to rise and mix with cold air, and circulate to the chicken cage, improving the comfort of the chickens. At the same time, the air mixing location is in the inner chamber 3 rather than at the chicken cage, which further improves the comfort of the chickens.

[0025] The perforated pipe allows outside air to escape through the second opening 422 and the first opening 421, which enables the full mixing of hot and cold air in the inner chamber 3. Due to the large number of openings, it is equivalent to forming multiple small, local air mixing zones around the air inlet pipe, avoiding uneven mixing of hot and cold air and stratification, and thus preventing unevenly mixed cold air from sinking directly to the chicken coop.

[0026] The first exhaust fan 41 is positioned opposite the air inlet pipe 42, where the pressure is lowest. This position creates an airflow path within the air inlet pipe 42, allowing air to flow smoothly through the longer pipe and dissipate through the second opening 422, thus improving the uniformity of hot and cold air mixing. At the same time, because it is positioned opposite the end of the air inlet pipe 42, it is mainly used to create negative pressure and will not draw away too much cold air, allowing most of the cold air to dissipate through the second opening 422.

[0027] The above optimizations can significantly improve the gentle control of temperature inside the chicken house at night or in low-temperature environments.

[0028] It should be noted that the first exhaust fan 41 is preferably a variable frequency first exhaust fan 41. Moreover, this embodiment is based on the premise of convenient adjustment of poultry house temperature under different outdoor temperatures, and the first exhaust fan 41 is also a variable frequency first exhaust fan 41. That is, the first exhaust fan 41 can adjust the speed of the first exhaust fan 41 by adjusting the power, so as to adjust the air intake.

[0029] Preferably, the distance between the corresponding ends of the first exhaust fan 41 and the air inlet pipe 42 is less than 30cm. It can be 10cm, 15cm, 20cm, 25cm, 30cm, etc., but is not limited to the listed values. Other unlisted values ​​within this range are also applicable. However, in this embodiment, 10cm is preferred because this will create negative pressure in the air inlet pipe 42, without affecting the air discharge from the second opening 422, and will also prevent the cold air outside the inner chamber 3 from being directly discharged from the first exhaust fan 41 after passing through the first opening 421.

[0030] In this embodiment, there are two first air intake modules 4, which are located on the left and right sides of the inner room 3.

[0031] The specific cycle is as follows: because the first exhaust fan 41 is located on both sides of the inner chamber 3, after the first exhaust fan 41 draws away the air located in the upper part of the inner chamber 3, the air in the poultry house mainly tends to rise. The hot air in the poultry house mainly gathers in the middle of the inner chamber 3, that is, between the air inlet pipes 42. Because cold air sinks and hot air rises, the hot air gathered in the middle of the poultry house is more likely to rise, resulting in a low pressure at the bottom of the middle. After the cold air comes out of the air inlet pipe 42, it mixes with the hot air and sinks, resulting in a low pressure above the air inlet pipe 42. Therefore, the hot air rising in the middle of the poultry house will move towards the air inlet pipe 42, and the sinking cold air will move towards the middle because of the low pressure at the bottom of the middle. This forms a cycle around the air inlet pipe 42.

[0032] More preferably, it also includes a second air intake module 11, which includes a second exhaust fan 111; the height of the second exhaust fan 111 is lower than that of the first exhaust fan 41; and the side wall of the outer wall 1 is provided with a window 12.

[0033] Furthermore, during the day, open window 12, then turn on the first exhaust fan 41 and the second exhaust fan 111 simultaneously, or turn on only the second exhaust fan 111, so that the air pressure in the poultry house is reduced, allowing more cold outdoor air to enter the poultry house and lowering the temperature of the poultry house.

[0034] Preferably, the second air intake module 11 further includes an air guide plate 121; the air guide plate 121 is used to guide the cold air entering through the window 12 into the inner room 3. When the cold air from outside enters, the air guide plate 121 can guide the cold air towards the inner room 3, so that the cold air from outside mixes with the hot air above the poultry house.

[0035] Preferably, the exhaust volume of the second exhaust fan 111 is greater than twice the exhaust volume of the first exhaust fan 41. More preferably, the exhaust volume of the second exhaust fan 111 is greater than four times the exhaust volume of the first exhaust fan 41.

[0036] Specifically, at night, to avoid affecting the insulation of the poultry house, window 12 is closed. When the temperature in the inner room 3 is not high, when the first exhaust fan 41 is turned on, the cold air from outside will not enter through window 12. Instead, the air entering the air inlet duct 42 will be discharged as a fine breeze after passing through the second opening 422, so that the cold air from outside will mix with the hot air above the poultry house. When the temperature is high, the first exhaust fan 41 can be turned off and the second exhaust fan 111 can be turned on. The second exhaust fan 111 will remove a large amount of hot air from the poultry house and introduce a large amount of cold air into the poultry house. During the day, window 12 and the second exhaust fan 111 are opened to bring a large amount of cold air into the inner room 3.

[0037] In this embodiment, there is one or more first openings 421. When there is one first opening 421, the diameter of the first opening 421 is 100-150mm, and the first opening 421 occupies 50%-80% of the surface area of ​​the end of the air inlet pipe 42. That is, the diameter of the first opening 421 can be 100mm, 110mm, 120mm, 130mm, 140mm, or 150mm. Of course, any specific value not mentioned in this embodiment can be used as long as it is within the range. Preferably, the diameter of the first opening 421 can be 110-140mm, and more preferably, the diameter of the first opening 421 can be 120mm-130mm.

[0038] The first opening 421 can occupy 50%, 60%, 70%, or 80% of the surface area of ​​the end of the air inlet pipe 42. Of course, any value not mentioned in this embodiment can be used as long as it is within this range. When the first opening 421 occupies more than 80% of the surface area of ​​the end of the air inlet pipe 42, it means that the end of the air inlet pipe 42 is almost completely open. At this time, the gas entering the air inlet pipe 42 is more likely to come out from the end, which affects the air volume of the second opening 422. Therefore, the first opening 421 occupies 55% to 75% of the surface area of ​​the end of the air inlet pipe 42, and more preferably 60% to 70%.

[0039] When there is one or more first openings 421, the diameter of the multiple first openings 421 is 20 to 50 mm, and the first openings 421 occupy 60% to 80% of the surface area of ​​the end of the air inlet pipe 42.

[0040] Specifically, since there are many first openings 421, the smoothness of outdoor cold air entering the air inlet duct 42 is reduced, and the cold air is prevented from being directly discharged from the first opening 421 and then carried out to the outside by the first exhaust fan 41. This allows more cold air to be discharged from the second opening 422, so that the cold air can be evenly mixed with the hot air in the inner room 3.

[0041] In this embodiment, a plurality of second openings 422 are arranged in an array along the length of the air inlet pipe 42. The diameter of the plurality of second openings 422 is 40-80mm, and the plurality of second openings 422 occupy 20%-60% of the side surface area of ​​the air inlet pipe 42. The diameter of the second openings 422 can be 40mm, 50mm, 60mm, 70mm, or 80mm. Of course, any specific value not mentioned in this embodiment can be used as long as it is within the range. Preferably, the diameter of the second openings 422 can be 50mm-70mm, and more preferably, the diameter of the second openings 422 can be 60mm-70mm.

[0042] The surface area of ​​the second opening 422 on the side of the air inlet pipe 42 can be 20%, 30%, 40%, 50%, or 60%. Of course, any specific value not mentioned in this embodiment can be used as long as it is within the range. Preferably, the surface area of ​​the second opening 422 on the side of the air inlet pipe 42 can be 30% to 60%. More preferably, the surface area of ​​the second opening 422 on the side of the air inlet pipe 42 can be 40% to 60%.

[0043] Therefore, it is equivalent to creating multiple small, localized air mixing zones around the air inlet duct 42, avoiding uneven mixing of hot and cold air and stratification, thereby preventing unevenly mixed cold air from sinking directly to the chicken coop.

[0044] Specifically, preferably, multiple second openings 422 can be set on the side of the air inlet pipe 42 facing the roof 2, and the second openings 422 occupy 20% to 60% of the side surface area of ​​the air inlet pipe 42. In this way, when outdoor cold air enters the air inlet pipe 42, the cold air will be discharged from the second openings 422. This creates multiple small, local air mixing zones around the air inlet pipe 42, improving the uniform mixing of hot and cold air and preventing unevenly mixed cold air from sinking to the chicken coop.

[0045] More preferably, the air inlet pipe 42 is provided with an L-shaped connecting pipe 423, the connecting pipe 423 is located at the end away from the first exhaust component, the connecting pipe 423 is located outside the inner chamber 3, and the connecting pipe 423 is provided with an air inlet 4231.

[0046] Furthermore, since cold air has a higher density, it will sink to a lower altitude. Therefore, by using the L-shaped connecting pipe 423, the cold air at the bottom can be better introduced into the air inlet pipe 42.

[0047] Example 2

[0048] This embodiment also proposes an air control method for poultry farming houses as described in Embodiment 1, the method specifically being:

[0049] When the temperature of the inner room 3 is lower than the first preset temperature but greater than or equal to the second preset temperature, close the window 12 and turn on the first exhaust fan 41; when the temperature of the inner room 3 is greater than or equal to the first preset temperature, open the window 12 and turn on the second exhaust fan 111; when the temperature of the inner room 3 is lower than the second preset temperature, close the window 12 and turn off the first exhaust fan 41 and the second exhaust fan 111.

[0050] Preferably, the first preset temperature is 25-35°C, and the second preset temperature is 20-25°C.

[0051] In some application scenarios, the first preset temperature can be set to 30℃ and the second preset temperature to 20℃, or the first preset temperature can be set to 35℃ and the second preset temperature to 25℃, or the first preset temperature can be set to 25℃ and the second preset temperature to 20℃, etc. The parameters can be set according to the breed of chicken, the scale of breeding, etc.

[0052] Under this design, at night, when the temperature in the poultry shed is lower than the first preset temperature but greater than or equal to the second preset temperature, window 12 is closed and the first exhaust fan 41 is turned on. The first exhaust fan reduces the air pressure in the inner chamber 3, allowing cold outdoor air to enter the air inlet duct 42. A small amount of cold air will move along the direction of the air inlet duct 42 and be discharged from the first opening 421 and the second opening 422, allowing the cold air to mix with the hot air in the inner chamber 3. When the temperature in the poultry shed is higher than the first preset temperature, window 12 is opened and the second exhaust fan 111 is turned on. The second exhaust fan 111 then ventilates the poultry shed. A large amount of hot air is carried away from the poultry house, reducing the air pressure in the poultry house and allowing a large amount of cold air from outside to enter the air inlet duct 42. Then, the cold air is discharged through the first opening 421 and the second opening 422 to reduce the temperature in the poultry house more efficiently. When the temperature in the poultry house is lower than the second preset temperature, that is, the outdoor temperature is also relatively low, it is necessary to ensure the air circulation in the room while preventing a large amount of cold air from entering the poultry house. Therefore, it is necessary to close the window 12, turn on the first exhaust fan 41, and reduce the power of the first exhaust fan 41 to prevent the poultry in the poultry house from freezing.

[0053] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements or modifications without departing from the principle of the present invention, and these improvements or modifications should also be considered within the scope of protection of the present invention.

Claims

1. A poultry breeding shed, comprising an outer wall and a roof, wherein the outer wall and roof cooperate to enclose an inner chamber located above the poultry breeding shed, characterized in that, A first air intake module is installed in the inner chamber. The first air intake module includes an air intake duct installed in the inner chamber and a first exhaust fan installed on the outer wall. The air intake duct extends along the length of the inner chamber. One end of the air intake duct is connected to the atmosphere, and the other end of the air intake duct faces the first exhaust fan. A first opening is provided at the end of the air intake duct facing the first exhaust fan. Multiple second openings are provided on the side wall of the air intake duct. The distance between the corresponding ends of the first exhaust fan and the air intake duct is 10cm, 15cm, 20cm, 25cm, or 30cm. There is one or more first openings. When there is one first opening, the diameter of the first opening is 100~150mm, and the first opening occupies 50%~80% of the surface area of ​​the end of the air intake duct. When there is one or more first openings, the diameter of the multiple first openings is 20~50mm, and the first opening occupies 60%~80% of the surface area of ​​the end of the air intake duct. The first opening is used to reduce the smoothness of outdoor cold air entering the air inlet pipe, and to prevent cold air from being directly discharged from the first opening and then carried outdoors by the first exhaust fan.

2. The poultry farming shed according to claim 1, characterized in that, There are two first air intake modules, located on the left and right sides of the inner room.

3. The poultry farming shed according to claim 1 or 2, characterized in that, It also includes a second air intake module, which includes a second exhaust fan installed on the exterior wall, and the second exhaust fan and the first exhaust fan are located on the same side of the exterior wall; the height of the second exhaust fan is lower than that of the first exhaust fan; and the side wall of the exterior wall is provided with a window.

4. The poultry farming shed according to claim 3, characterized in that, The second air intake module also includes an air guide plate installed on the window; the air guide plate is used to guide the air entering through the window into the interior room.

5. The poultry farming shed according to claim 3, characterized in that, The second exhaust fan has a suction volume greater than twice that of the first exhaust fan.

6. The poultry farming shed according to claim 5, characterized in that, The second exhaust fan has an air volume greater than four times that of the first exhaust fan.

7. A poultry breeding house according to claim 1, characterized in that, Multiple second openings are arranged in an array along the length of the air inlet pipe. The diameter of the multiple second openings is 40~80mm, and the multiple second openings occupy 20%~60% of the side surface area of ​​the air inlet pipe.

8. A poultry breeding house according to claim 1, characterized in that, The air inlet pipe is equipped with an L-shaped connecting pipe, which is located at the end away from the first exhaust fan. The connecting pipe is located between the inner and outer surfaces and has an air inlet.

9. An air control method for poultry farming houses as described in claim 4, characterized in that, The method is as follows: when the indoor temperature is lower than the first preset temperature and greater than or equal to the second preset temperature, close the window and turn on the first exhaust fan. When the indoor temperature is greater than or equal to the first preset temperature, open the window and turn on the second exhaust fan; When the indoor temperature is lower than the second preset temperature, close the window and turn off the first and second exhaust fans.

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