A wide-body roof partial air intake ventilation system
By installing ventilation ceilings and exhaust devices on the top of the chicken house, combined with wet curtains and negative pressure fans, the preheating and uniform air delivery of cold air were achieved, solving the problem of uncontrollable cold air landing points in wide-body chicken houses, improving the temperature uniformity and air freshness inside the house, and creating a more comfortable growing environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青岛大牧人机械股份有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-30
AI Technical Summary
The existing ventilation system in chicken houses results in uncontrollable cold air landing points and large temperature fluctuations, which affect the health of chickens, especially in wide-body chicken houses.
A wide-body roof-mounted partial air intake ventilation system is adopted. By installing ventilation ceilings and exhaust devices on the roof of the building, air is introduced in sections through ceiling air inlets and partition wall air inlets. Combined with wet curtains and negative pressure fans, cold air is preheated and evenly distributed.
It improves the uniformity of temperature and air freshness inside the shed, avoids cold stress, and creates a more comfortable growing space, suitable for different seasons and breeding needs.
Smart Images

Figure CN224419652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dormitory ventilation technology, specifically a ventilation system for partial air intake on the roof of a wide-body dormitory. Background Technology
[0002] The uniformity and stability of temperature and humidity inside the chicken house are key factors affecting chicken health. Currently, chicken house ventilation uses side wall vents for air intake, as shown in the attached diagram. Figure 1 As shown, the central air intake area has fresh air and a low temperature, while the areas on both sides have high temperatures and stale air. This air intake method is also easily affected by the direction and speed of the outside wind. Changes in the location of the air intake point cause temperature fluctuations, which is very detrimental to management and directly affects the health of chickens. This phenomenon is even more serious in wide-body chicken houses, where the influence of outside wind is very large. The main problem is that the location of the cold air is uncontrollable, resulting in large temperature fluctuations and making chickens prone to catching colds. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a partial air intake ventilation system for the roof of a wide-body building that can utilize residual heat from cold air and achieve more uniform cold air landing points by dividing the air intake into zones and optimizing the airflow path.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A partial air intake ventilation system for a wide-body dormitory roof includes an air intake device installed at the front of the dormitory, a ventilation ceiling installed on the top of the dormitory, and an exhaust device installed at the rear of the dormitory.
[0006] The ceiling area above the ventilation ceiling is connected to the air intake device, and the breeding area below the ventilation ceiling is connected to the exhaust device; multiple ceiling air inlets are installed on the ventilation ceiling to connect the ceiling area and the breeding area.
[0007] By adopting the above scheme, the ventilation system installs a ventilation ceiling on the top of the house. Cold air first enters the area above the ventilation ceiling and is evenly distributed to the breeding area from top to bottom through the air inlet of the ceiling. At this time, the heat inside the house will preheat the cold air above the ventilation ceiling, which can effectively improve the temperature uniformity and air freshness of the wide-body house, avoid the cold stress caused by eccentric wind, achieve precise air delivery to the breeding area, and create a more comfortable growth space for poultry and livestock.
[0008] In a preferred embodiment of a partial air intake ventilation system for a wide-body house roof, in order to adjust the opening and control the air intake according to the breeding needs, an air intake window that can be opened or closed, such as a louver or a sliding window, is installed at the ceiling air intake.
[0009] In a preferred embodiment of a wide-body roof-mounted partial air intake ventilation system, multiple sets of evenly distributed cages are installed in the breeding area below the ventilation ceiling for livestock and poultry breeding, such as chicken farming.
[0010] In a preferred embodiment of a partial air intake ventilation system for a wide-body barn, to avoid the air intake directly impacting the livestock and poultry in the cages, the position of the ceiling air intake is not directly corresponding to the cages below it, but to the passage between two adjacent sets of cages, so that the airflow can be evenly diffused through the passage.
[0011] In a preferred embodiment of a partial roof-mounted ventilation system for wide-body housing, to better achieve seasonal and time-of-day ventilation, a partition wall is installed at the front of the housing, located below the ventilation ceiling within the breeding area. An air supply duct is left between the partition wall and the exhaust system. Multiple air inlets are installed on the partition wall, connecting the air supply duct to the breeding area. In winter, the partition wall air inlets are closed. Cold air enters the roof area above the ventilation ceiling along the air supply duct and is then evenly distributed to the breeding area from top to bottom through the ceiling air inlets. The heat inside the housing preheats the cold air above the ventilation ceiling, effectively improving the temperature uniformity and air freshness of the wide-body housing and avoiding cold stress caused by uneven airflow. In spring, summer, and autumn, the partition wall air inlets are opened. Most of the air enters the breeding area directly through the partition wall air inlets, while a small portion is evenly distributed to the breeding area from top to bottom through the ceiling air inlets, thereby improving air circulation.
[0012] In a preferred embodiment of a partial air intake ventilation system for a wide-body house roof, in order to adjust the opening and control the air intake according to the breeding needs, an air intake window that can be opened or closed, such as a louver or a sliding window, is installed at the air intake of the partition wall.
[0013] In a preferred embodiment of a partial air intake ventilation system for a wide-body building roof, the air intake device is a wet curtain, which can reduce the temperature of the incoming air and increase the humidity through water evaporation, making it suitable for high-temperature environments in summer.
[0014] In a preferred embodiment of a partial air intake ventilation system for a wide-body building roof, the exhaust device is a negative pressure fan, which accelerates the exhaust of air from the building through the negative pressure effect, and forms a stable airflow circulation in conjunction with the air intake device.
[0015] The beneficial effects of this utility model are:
[0016] 1. Preheating and air intake in the top area. This ventilation system uses a suspended ceiling installed on the top of the shed. Cool air first enters above the suspended ceiling and is evenly distributed to the breeding area from top to bottom through the air inlets. At this time, the heat inside the shed preheats the cool air above the suspended ceiling, which can effectively improve the temperature uniformity and air freshness of the wide-body shed, avoid cold stress caused by eccentric winds, and achieve precise air delivery to the breeding area, creating a more comfortable growing space for poultry and livestock.
[0017] 2. Further diffuse airflow. The ceiling air inlet is not directly aligned with the cages below, but rather blows towards the aisle, avoiding direct impact of the incoming air on the livestock inside the cages. The airflow is further diffused through the aisle.
[0018] 3. Seasonal, time-segmented ventilation. In winter, the partition wall air inlets are closed. Cold air will first enter the ceiling area above the ventilation ducts, then be evenly distributed to the breeding area from top to bottom through the ceiling air inlets. The heat inside the shed will preheat the cold air above the ceiling, effectively improving temperature uniformity and air freshness in the wide-body shed and preventing cold stress caused by uneven drafts. In spring, summer, and autumn, the partition wall air inlets are opened. Most air enters the breeding area directly through these inlets, while a smaller portion is evenly distributed from top to bottom through the ceiling air inlets, thus improving air circulation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view structural diagram illustrating the ventilation method of a wide-body building in the background art;
[0021] Figure 2 A schematic diagram of the main structure of the air intake ventilation system for a portion of the roof of a wide-body building;
[0022] Figure 3 This is a left-side structural diagram of the air intake ventilation system in a portion of the roof of a wide-body dormitory during winter.
[0023] Figure 4 This is a left-side structural diagram of the air intake ventilation system in a portion of the roof of a wide-body dormitory during spring, summer and autumn.
[0024] The markings in the diagram are: 1-Dwelling; 2-Ventilation ceiling; 3-Ceiling air inlet; 4-Cage; 5-Partition wall; 6-Air supply duct; 7-Partition wall air inlet; 8-Evaporative curtain; 9-Negative pressure fan. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figure 2 As shown, a partial air intake ventilation system for a wide-body chicken house is provided for air supply. Specifically, it includes an air intake device at the front of the house 1, a ventilation ceiling 2 installed at the top of the house 1, and an exhaust device at the rear of the house 1. The house 1 is a wide-body house, with a horizontal width (perpendicular to the length of the ventilation ceiling 2) typically 12-20 meters, a longitudinal length (along the ventilation path) 30-60 meters, and a total height (from ground to roof) of 4.5-6 meters. The roof area above the ventilation ceiling 2 is connected to the air intake device, and the breeding area below the ventilation ceiling 2 is connected to the exhaust device. Multiple ceiling air inlets 3 are installed on the ventilation ceiling 2 to connect the roof area and the breeding area. This ventilation system installs a ventilation ceiling 2 on the top of the shed 1. Cold air first enters above the ventilation ceiling 2 and is evenly distributed to the breeding area from top to bottom through the ceiling air inlet 3. At this time, the heat inside the shed will preheat the cold air above the ventilation ceiling 2, which can effectively improve the temperature uniformity and air freshness of the wide-body shed, avoid the cold stress caused by eccentric wind, and achieve precise air delivery to the breeding area, creating a more comfortable growth space for poultry and livestock.
[0027] Continue as Figure 2 As shown, in order to adjust the opening and control the air intake according to the breeding needs, three air intakes in the ceiling are equipped with openable or closable air intake windows, such as louvers or sliding windows. The opening (such as 0-90°) can be controlled manually or electrically to adjust the air intake.
[0028] Continue as Figure 2 As shown, multiple sets of evenly distributed cages 4 are installed in the breeding area below the ventilated ceiling 2 for raising chickens.
[0029] Continue as Figure 2 As shown, in order to avoid the air intake directly impacting the livestock and poultry in the cage 4, the position of the ceiling air intake 3 is not directly corresponding to the cage 4 below it, but to the passage between two adjacent sets of cages 4, so that the airflow can be evenly diffused through the passage.
[0030] like Figures 3 to 4 As shown, to better achieve seasonal and time-segmented ventilation, a partition wall 5 is installed at the front of the shed 1, located below the ventilation ceiling 2 within the breeding area. An air supply duct 6 is provided between the partition wall 5 and the exhaust system. Multiple air inlets 7 are installed on the partition wall 5, connecting the air supply duct 6 to the breeding area. In winter, as... Figure 3 As shown, when the air inlet 7 of the partition wall is closed, the cold air will first enter the area above the ventilation ceiling 2 along the air supply duct 6. The cold air is then evenly distributed from top to bottom to the breeding area through the ceiling air inlet 3. At this time, the heat inside the house will preheat the cold air above the ventilation ceiling 2, which can effectively improve the temperature uniformity and air freshness of the wide-body house and avoid cold stress caused by eccentric winds. In spring, summer and autumn, such as Figure 4 As shown, when the partition wall air inlet 7 is opened, most of the air enters the breeding area directly through the partition wall air inlet 7, and a small portion of the air is evenly delivered to the breeding area from top to bottom through the ceiling air inlet 3, forming a dual-path air intake to improve air circulation.
[0031] Continue as Figures 3 to 4 As shown, in order to adjust the opening degree and control the air intake according to the breeding needs, the seven air intakes in the partition wall are equipped with air intake windows that can be opened or closed, such as louvers and sliding windows. The opening degree (such as 0-90°) can be controlled manually or electrically to adjust the air intake.
[0032] Continue as Figures 3 to 4 As shown, the air inlet device is a wet curtain 8. The material of the wet curtain 8 can be paper or polymer composite material. It is kept moist through a water circulation system. It can reduce the temperature of the incoming air and increase the humidity through water evaporation, making it suitable for high-temperature environments in summer.
[0033] Continue as Figures 3 to 4 As shown, the exhaust system is a negative pressure fan 9, which creates a stable airflow circulation within the housing 1: "air intake at the front → airflow in the breeding area → exhaust at the rear." The power of the negative pressure fan 9 can be selected according to the size of the housing 1 and the breeding density to ensure a balance between exhaust and intake air volumes.
[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A partial air intake ventilation system for a wide-body dormitory roof, comprising an air intake device installed at the front of the dormitory, a ventilation ceiling installed on the top of the dormitory, and an exhaust device installed at the rear of the dormitory; characterized in that The ceiling area above the ventilation ceiling is connected to the air intake device, and the breeding area below the ventilation ceiling is connected to the exhaust device; the ventilation ceiling is equipped with multiple ceiling air inlets that connect the ceiling area and the breeding area.
2. The wide-body dormitory roof partial area air intake ventilation system according to claim 1, characterized in that, An air inlet window that can be opened or closed is installed at the ceiling air inlet.
3. The wide-body dormitory roof partial area air intake ventilation system according to claim 1, characterized in that: Multiple sets of evenly distributed cages are installed in the breeding area below the ventilated ceiling.
4. The wide-body dormitory roof partial area air intake ventilation system according to claim 3, characterized in that: The location of the ceiling air inlet does not directly correspond to the cage below it, but rather to the passageway between two adjacent sets of cages.
5. The wide-body dormitory roof partial area air intake ventilation system according to claim 1, characterized in that: The front of the building is equipped with a partition wall located in the breeding area below the ventilation ceiling. An air supply duct is left between the partition wall and the exhaust device. Multiple air inlets are installed on the partition wall to connect the air supply duct with the breeding area.
6. The wide-body dormitory roof partial area air intake ventilation system according to claim 5, characterized in that: The partition wall is equipped with an air inlet window that can be opened or closed.
7. The wide-body dormitory roof partial area air intake ventilation system according to claim 1, characterized in that, The air intake device is a wet curtain.
8. The wide-body dormitory roof partial area air intake ventilation system according to claim 1, characterized in that, The exhaust device is a negative pressure fan.