Air inlet window for breeding house and breeding house
By installing a guide unit and an adjustment plate inside the air inlet window of the chicken house, a spiral airflow is formed, which solves the problems of high cost and poor effect of ventilation equipment in medium and large chicken houses, achieves better ventilation coverage and uniformity, and reduces equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-07
AI Technical Summary
Ventilation equipment in medium and large-sized chicken houses is expensive and ineffective, making it difficult to achieve adequate and uniform air exchange.
The air inlet window adopts a box structure and has an internal airflow guiding unit to form a spiral airflow. Combined with the adjustment plate and guide plate, the airflow can be fully mixed and covered in the chicken house by adjusting the air outlet area and direction, so as to avoid cold air blowing directly on the chickens.
It achieves adequate ventilation and air exchange in medium and large-sized chicken houses, covers dead corners, reduces the cost of ventilation equipment, improves ventilation uniformity and mixing effect, and prevents cold air from blowing directly onto the chickens.
Smart Images
Figure CN224084420U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ventilation technology for livestock housing, specifically relating to an air intake window for livestock housing and the livestock housing itself. Background Technology
[0002] Currently, with the trend towards large-scale and centralized operations in the poultry industry, chicken houses are being designed and built to increasingly larger sizes. The width of chicken houses has gradually increased from less than 10 meters to 16 meters or even wider, posing a significant challenge to ventilation. For proper ventilation, the cool air entering through the air inlets needs to be fully mixed and heated before reaching the center of the house, and the airflow must avoid directly blowing onto the chickens. The airflow velocity needs to reach 6 m / s, all of which place high demands on the air inlets of large chicken houses.
[0003] To increase the distance airflow travels towards the center of the chicken house, extra-large chicken houses typically use additional roof fans or downdraft fans to transfer airflow and turbulent the air inside the house, thereby ensuring sufficient and uniform ventilation. However, this ventilation method requires a large investment. Therefore, in medium and large-sized chicken houses, traditional flat-edged air outlets and small windows are still mainly used, and the air outlet effect is difficult to meet the needs of sufficient ventilation and air exchange inside the chicken house. Utility Model Content
[0004] The purpose of this utility model is to provide an air intake window and a breeding house for breeding facilities, so as to solve the problems of high cost and poor ventilation in medium and large-sized breeding facilities.
[0005] This utility model is achieved through the following technical solution:
[0006] Air intake windows for aquaculture housing include:
[0007] The box has an internal cavity, an air inlet communicating with the cavity is located at the bottom of the box, and one side of the box is set as an opening;
[0008] The airflow guiding unit includes multiple sets of airflow guiding impellers, which are arranged horizontally side by side at the air inlet position, so that when the external airflow enters the cavity through the airflow guiding impellers, a spiral airflow can be formed in the cavity.
[0009] An adjustment plate is provided at the opening of the box. One end of the adjustment plate is hinged to the box at the lower end of the opening, and the other end of the adjustment plate forms an air outlet between the upper end of the opening and the box for the airflow in the cavity to flow out. The air outlet area can be adjusted by rotating the adjustment plate.
[0010] In some embodiments, the adjustment plate is an arc-shaped plate that protrudes into the cavity.
[0011] In some embodiments, air curtains are provided on both sides of the opening of the housing to block the air outlets formed on both sides between the adjustment plate and the housing.
[0012] In some embodiments, the air outlet area is smaller than the air inlet area.
[0013] In some embodiments, a guide plate is provided on the upper edge of the opening on the housing, and the guide plate extends forward toward the opening.
[0014] In some embodiments, a spiral air duct is provided on the inner side of the guide plate, so that the spiral airflow in the cavity flows out along the guide plate in a rotating state under the action of the spiral air duct.
[0015] In some embodiments, a baffle plate is provided inside the housing, and multiple baffle grooves are provided on the baffle plate. The baffle grooves are arranged in a spiral shape along the direction from the air inlet to the air outlet, so that the spiral airflow in the cavity can form a rotating airflow under the action of the baffle grooves.
[0016] In some embodiments, an airflow channel is formed between the guide plate, the regulating plate and the housing, and the flow area of the airflow channel gradually decreases from the air inlet to the air outlet.
[0017] In some embodiments, the guide impeller includes a plurality of guide blades fixedly arranged, the guide blades being inclined in the same direction relative to the horizontal plane.
[0018] In some embodiments, the housing is provided with an adjustment mechanism for adjusting the rotation of the adjustment plate.
[0019] On the other hand, this utility model also provides a breeding house, with a plurality of air inlets provided on the long side of the breeding house, the openings of the air inlets facing the interior of the breeding house, and the air inlets of the air inlets located outside the breeding house.
[0020] In some embodiments, air inlets located on the same side of the breeding house are spaced 50-60cm apart and directly opposite the gaps between the breeding cages inside the breeding house. The air inlets are positioned at a height such that the upper edge of the air inlets is 30-40cm from the roof of the breeding house.
[0021] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0022] This utility model adopts a box structure with a guide unit at the air inlet. The external airflow forms a high-speed rotating airflow under the action of the air inlet window and enters the house. The airflow flows along the guide plate and the roof towards the center of the house. According to the Coanda effect, the airflow will spiral forward along the roof towards the center of the house, allowing the airflow to flow a longer distance in the house to meet the ventilation needs of medium and large chicken houses. It can also better cover all dead corners of the house, achieving sufficient ventilation inside the chicken house.
[0023] By designing the air outlets, the outdoor cold air flows out in a rotating manner along the guide plates and deflectors, allowing the rotating airflow to mix more thoroughly and over a wider area with the hot air inside the house, thus preheating the incoming cold air and preventing the cold air from blowing directly onto the chickens.
[0024] This utility model has a simple structure, good ventilation effect, is easy to process and install, and has low operating cost, making it highly practical and worth promoting. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the air intake window structure in an embodiment of the present utility model.
[0027] Figure 2 This is a schematic diagram of the structure of the adjustment plate of the air intake window and the housing in an embodiment of this utility model.
[0028] Figure 3 This is a schematic diagram of the internal structure arrangement of the air intake window in an embodiment of this utility model.
[0029] Figure 4 This is a schematic diagram of the internal cross-section of the air intake window in an embodiment of this utility model.
[0030] Figure 5 This is a front view of the air intake window deflector structure according to an embodiment of the present utility model.
[0031] in:
[0032] 10. Housing; 11. Air inlet; 12. Air outlet; 13. Air guide shroud; 14. Airflow channel; 15. Guide plate; 16. Spiral air duct.
[0033] 20. Guide impeller;
[0034] 30. Adjustment plate;
[0035] 40. Flow deflector; 41. Flow deflector channel;
[0036] 50. Air curtain. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0038] Utilizing the negative pressure inside the building, external airflow forms a high-speed rotating airflow that enters the building through the air inlet windows. This allows the airflow to travel a greater distance within the building, meeting the ventilation needs of medium to large-sized chicken houses. It also better covers all dead corners of the building, ensuring thorough ventilation. Furthermore, the cold airflow entering the building flows out through the upward-facing air outlets, allowing it to mix thoroughly with the hot airflow from the top of the building. The rotating airflow achieves a better mixing effect, preventing cold air from blowing directly onto the chickens.
[0039] In some embodiments of this utility model, reference is made to... Figure 1 , Figure 2 and Figure 3 The air intake window includes:
[0040] The housing 10 has an internal cavity, and an air inlet 11 communicating with the cavity is provided at the bottom of the housing. One side of the housing is provided as an opening.
[0041] The air guiding unit includes multiple sets of air guiding impellers 20, which are arranged horizontally side by side at the air inlet position, so that when the external airflow enters the cavity through the air guiding impellers, a spiral airflow can be formed in the cavity.
[0042] An adjusting plate 30 is provided at the opening of the box. One end of the adjusting plate 30 is hinged to the box at the lower end of the opening, and the other end of the adjusting plate forms an air outlet 12 between the upper end of the opening and the box for the airflow in the cavity to flow out. The air outlet area can be adjusted by rotating the adjusting plate.
[0043] The air intake window has a rectangular box structure with an installation size of 600×400mm. The box consists of a bottom plate, top plate, back plate, and side plates, forming an internal cavity with an opening on one side. An air inlet is located on the bottom plate, and guide impellers are fixedly installed on the air inlet. The air inlet at the bottom of the box is usually located outdoors. Under the negative pressure inside the room, the cold outdoor air enters the box through the air inlet. As the airflow passes through the guide unit at the air inlet, it forms a spiral airflow under the action of the guide impeller. The spiral airflow flows out from the air outlet and into the building. Based on the structure of the regulating plate, the spiral airflow can mix with the hot airflow from the top of the building after flowing out of the air outlet. At the same time, the size of the air outlet area can be adjusted by the regulating plate, allowing the spiral airflow to flow out of the air outlet at high speed. Combined with the inertia of the rotating airflow, the penetrating power of the airflow is enhanced, ensuring that the airflow can flow to the middle of the building.
[0044] Reference Figure 3 The guide impeller 20 includes 3-4 guide blades that are fixedly arranged. The guide blades are inclined in the same direction relative to the horizontal plane, forming a spiral arrangement in a clockwise or counterclockwise direction. The outlet inclination angle of the guide blades can be set as needed.
[0045] The bottom of the housing extends downwards towards the air inlet to form an air guide shroud 13, allowing airflow to pass through the air guide shroud and then flow into the housing from the air inlet.
[0046] In some embodiments, the regulating plate 30 is configured as an arc-shaped plate protruding into the cavity. The arc surface of the arc-shaped plate guides the airflow inside the box, reducing the impact on the airflow velocity from the air inlet to the air outlet.
[0047] The side panels on both sides of the air intake window can be extended to form openings, so that the two sides of the adjustment plate can cooperate with the two sides of the box body. This ensures that the adjustment plate is always inside the two sides of the box body when it is rotated and adjusted. By blocking the two sides of the adjustment plate through the two sides of the box body, the adjustment plate will not form air outlets on both sides when it is rotated and adjusted, so that the airflow can only flow out from the air outlet.
[0048] Alternatively, in some embodiments, air curtains 50 are respectively installed on both sides of the opening of the housing. The air curtains block the air outlets formed on both sides between the adjusting plate and the housing, so that the airflow can only flow out from the air outlets. The air curtains can be hung on both sides of the housing, or the air curtains can be connected to the adjusting plate and the housing respectively. Based on the flexible structural characteristics of the air curtains, the air outlets on both sides can be blocked by the air curtains without affecting the rotation adjustment of the adjusting plate.
[0049] The adjusting plate 30 can be adjusted within a range of 0°-45°, with the adjustment angle being the tilt angle relative to the vertical plane. When the adjusting plate is adjusted within this range, the outlet area is always smaller than the inlet area. This difference in inlet and outlet areas allows the airflow inside the enclosure to exit at a higher velocity, thus increasing the outflow speed. For example, with an adjustment angle of 10°, the ratio of the inlet area to the outlet area is approximately 1.5:1. By adjusting the plate to change the outlet area, decreasing the outlet area increases the airflow velocity, while increasing the outlet area increases the airflow volume, allowing the air intake window to meet different ventilation and air exchange needs.
[0050] In some embodiments, refer to Figure 1 , Figure 2 and Figure 4 A guide plate 15 is provided on the upper edge of the opening on the housing 10, and the guide plate 15 extends forward of the opening. For example... Figure 4 The guide plate is designed to guide the airflow from the outlet, allowing the rotating airflow to flow along the roof towards the center of the building. The guide plate can be rotatably connected to the housing, and the tilt angle of the guide plate can be adjusted as needed to achieve the best air intake effect.
[0051] A spiral air duct 16 is provided on the inner side of the guide plate 15, as shown in the figure. Figure 1 and Figure 2 As shown, the spiral air duct 16 is designed so that the airflow in the cavity is always guided by the spiral air duct before it flows out from the air outlet. The spiral air duct 16 is spiral-shaped from the cavity to the air outlet, so that the spiral airflow in the cavity flows out in a rotating state along the guide plate under the action of the spiral air duct.
[0052] An adjustment mechanism is installed on the housing, which allows for the rotation and adjustment of the adjustment plate. This mechanism can be, for example, a pull rope connected to the adjustment plate, allowing for angle adjustment by pulling the rope. The pull ropes of each air inlet on the breeding shed are connected to the main drive steel cable via pulleys. This allows for synchronized adjustment of the tilt angle of the adjustment plates for each air inlet and control of the opening and closing of the air outlets when the main drive steel cable is pulled.
[0053] In some embodiments, refer to Figure 3 , Figure 4 and Figure 5 Inside the housing 10, a baffle plate 40 is provided, and multiple baffle grooves 41 are provided on the baffle plate 40. The baffle grooves can be integrally formed on the baffle plate. The baffle grooves 41 are arranged in a spiral shape along the direction from the air inlet to the air outlet, so that the airflow in the cavity can form a rotating airflow when it flows out of the air outlet under the action of the baffle grooves.
[0054] At this time, an airflow channel 14 is formed between the guide plate 40, the adjusting plate 30, and the two side plates of the housing 10. From the air inlet to the air outlet, the flow area of the airflow channel 14 gradually decreases. (Refer to...) Figure 4 As shown, a cavity with a gradually decreasing flow area is formed between the baffle, the regulating plate, and the housing. The Venturi effect is used to accelerate the airflow and increase the velocity of the gas flowing out of the outlet.
[0055] The baffle plate 40 is an arc-shaped plate, which, together with the spiral baffle groove, makes the airflow inside the box form a high-speed rotating airflow that is thrown out from the air outlet. The high-speed rotating airflow is fully mixed with the hot air along the smooth top surface of the building and then sent to the middle of the building.
[0056] The guide groove on the guide plate can be formed by extruding a spiral groove on a flat plate and then bending the guide plate into an arc shape.
[0057] The air intake box, regulating plate, guide plate, and guide impeller can all be made of corrosion-resistant materials, such as galvanized steel plate or plastic, to adapt to the high humidity and corrosive environment of the breeding house.
[0058] A filter screen can be installed at the air inlet of the enclosure. The filter screen is made of double-layer stainless steel mesh, with the outer layer for coarse filtration to prevent insects and the inner layer for fine filtration to prevent dust.
[0059] Taking an air intake window with installation dimensions of 600×400mm as an example, when the air intake velocity is 2m / s, the ventilation volume of the air intake window is 800m³ / s. 3 / h, the airflow rotation angular velocity measured at 1m from the outlet is 80-100rpm, and the airflow penetration distance can reach 10-16m; relevant performance data comparison is shown in Table 1.
[0060] Table 1. Ventilation performance data of the air intake window in this embodiment.
[0061] Performance indicators Traditional straight-in air intake window This embodiment has an air intake window. Performance improvement effect Effective air delivery distance 5-8m 10-16m +100% Ventilation uniformity 0.3-0.5 0.45-0.75 +50%
[0062] On the other hand, some embodiments of this utility model provide a breeding house with multiple air inlets on the long side of the breeding house. The openings of the air inlets face the inside of the breeding house, and the air inlets are located outside the breeding house. By utilizing the negative pressure formed inside the breeding house, a pressure difference is created between the air inlets and outlets of the air inlets, allowing cold air from outside the breeding house to flow into the breeding house through the air inlets.
[0063] In some embodiments, the air intake windows on both sides of the breeding house are generally arranged symmetrically, with the air intake windows on the same side of the breeding house spaced 50-60cm apart and directly opposite the gap between the breeding cages inside the breeding house. The spacing of the air intake windows is set according to actual needs. The height of the air intake windows on the breeding house is such that the upper edge of the air intake window is 30-40cm away from the roof of the breeding house, so as to achieve sufficient airflow and ventilation in the breeding house while avoiding external airflow directly flowing into the chicken activity area.
[0064] External airflow enters the building through the air inlet window and flows in a spiral shape toward the center of the building. At the same time, the low-pressure area in the center of the building attracts the surrounding air, creating a self-reinforcing effect inside the building, thus achieving sufficient ventilation and air exchange inside the building.
[0065] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0066] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0067] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0068] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. An air intake window for livestock housing, characterized in that, include: The box has an internal cavity, an air inlet communicating with the cavity is located at the bottom of the box, and one side of the box is set as an opening; The airflow guiding unit includes multiple sets of airflow guiding impellers, which are arranged horizontally side by side at the air inlet position, so that when the external airflow enters the cavity through the airflow guiding impellers, a spiral airflow can be formed in the cavity. An adjustment plate is provided at the opening of the box. One end of the adjustment plate is hinged to the box at the lower end of the opening, and the other end of the adjustment plate forms an air outlet between the upper end of the opening and the box for the airflow in the cavity to flow out. The air outlet area can be adjusted by rotating the adjustment plate.
2. The air intake window for breeding housing according to claim 1, characterized in that, The adjustment plate is an arc-shaped plate that protrudes into the cavity.
3. The air intake window for breeding housing according to claim 1, characterized in that, Air curtains are installed on both sides of the opening of the housing to block the air outlets formed on both sides between the regulating plate and the housing.
4. The air intake window for breeding housing according to claim 1, characterized in that, The air outlet area is smaller than the air inlet area.
5. The air intake window for breeding housing according to claim 1, characterized in that, A guide plate is provided on the upper edge of the opening on the box body, and the guide plate extends forward of the opening.
6. The air intake window for aquaculture housing according to claim 5, characterized in that, A spiral air duct is provided on the inner side of the guide plate, so that the spiral airflow in the cavity flows out along the guide plate in a rotating state under the action of the spiral air duct.
7. The air intake window for aquaculture housing according to any one of claims 1-6, characterized in that, The housing is equipped with a baffle plate, which has multiple baffle grooves. The baffle grooves are arranged in a spiral shape along the direction from the air inlet to the air outlet, so that the spiral airflow in the cavity can form a rotating airflow under the action of the baffle grooves.
8. The air intake window for aquaculture housing according to claim 7, characterized in that, The airflow channel is formed between the guide plate, the regulating plate and the housing, and the flow area of the airflow channel gradually decreases from the air inlet to the air outlet.
9. Livestock housing, characterized in that, A plurality of air inlet windows as described in any one of claims 1-8 are provided on the long side of the breeding house, the opening of the air inlet window is provided facing the inside of the breeding house, and the air inlet of the air inlet window is located outside the breeding house.
10. The breeding housing according to claim 9, characterized in that, The air intake windows are set at intervals of 50-60cm on the same side of the breeding house and are directly opposite the gap between the breeding cages inside the breeding house. The air intake windows are set at a height such that the upper edge of the air intake window is 30-40cm away from the roof of the breeding house.