A ventilation device for black bear farming

Abstract

This utility model proposes an environmental ventilation device for black bear farming, involving ventilation structure technology. Specifically, it discloses a ventilation duct installed on the surface of the factory building, which is connected to the air supply equipment outside the factory building. Several ventilation secondary pipes are equidistantly arranged on the outer wall of the ventilation duct and connected to it. A guide pipe is rotatably arranged on the side of the ventilation secondary pipe away from the ventilation duct, and a guide plate is inclinedly arranged inside the guide pipe. There is a ring-shaped guiding area between the inner wall of the ventilation secondary pipe and the outer wall of the guide pipe. Several diversion plates are arranged around the outer wall of the guide pipe and placed in the guiding area. A diversion pipe connected to the guiding area is arranged inside the ventilation secondary pipe. The air output from the diversion pipe flows obliquely into the space between any two diversion plates, thereby driving the guide pipe to rotate. The main airflow is then delivered into the factory space in a dynamic diffusion manner after passing through the rotating guide pipe and being obliquely guided by the guide plate. This minimizes the temperature gradient change in the air inside the factory and reduces stress on the black bears.

Description

Technical Field

[0001] This utility model relates to the field of ventilation structure technology, and more specifically, to an environmental ventilation device for black bear breeding. Background Technology

[0002] When large animals such as black bears are raised in cages, multiple animals are housed in the same facility. Ventilation in these facilities typically involves either large, mobile blowers directing airflow onto specific bear cages or a fixed ventilation duct system, usually consisting of a main duct and several fixed air outlets. Outside air is supplied through the ductwork and then exhausted directly from these outlets. When multiple large, mobile blowers are used, the ventilation direction is limited to one area, resulting in insufficient ventilation in other directions. The continuous, strong, directional winds from this fixed-direction airflow can cause stress in the bears, affecting their welfare and health. Furthermore, due to the density difference between hot and cold air, the fixed airflow pattern easily leads to the accumulation of hot air at the top of the facility, causing vertical temperature stratification. This makes it difficult to effectively expel heat and exhaust gases from the lower breeding areas, resulting in low energy efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an environmental ventilation device for black bear farming, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0004] The technical solution of this utility model is implemented as follows: This utility model provides an environmental ventilation device for black bear farming, including a ventilation duct installed on the surface of the factory building, which is connected to an air supply device outside the factory building; several ventilation secondary pipes are equidistantly arranged on the outer wall of the ventilation duct and connected thereto; a guide pipe is rotatably arranged on the side of the ventilation secondary pipe away from the ventilation duct, and a guide plate is inclinedly arranged inside the guide pipe; there is an annular guiding area between the inner wall of the ventilation secondary pipe and the outer wall of the guide pipe, and several diversion plates placed in the guiding area are arranged around the outer wall of the guide pipe; a diversion pipe connected to the guiding area is provided inside the ventilation secondary pipe, and the air output from the diversion pipe flows obliquely into the space between any two diversion plates, thereby driving the guide pipe to rotate.

[0005] In some technical solutions of this utility model, an installation groove is opened along the circumference of the air guide duct, the beginning and end of the installation groove are connected, several diversion plates are arranged around the installation groove, and two guide rings are provided on the inner side wall of the ventilation secondary duct, and parts of the two guide rings are embedded in the installation groove.

[0006] In some technical solutions of this utility model, both ends of the air guide plate are provided with shafts, one of which is rotatably disposed inside the air guide pipe; the other shaft extends outward after penetrating the outer side wall of the air guide pipe, and the extension section of the shaft is provided with an external thread for threaded connection with the air guide pipe.

[0007] In some technical solutions of this utility model, there are multiple air guide plates, which are equidistantly arranged in the air guide pipe along the radial direction of the ventilation sub-pipe.

[0008] In some technical solutions of this utility model, the input end of the drainage pipe is inclinedly arranged inside the ventilation sub-pipe, and the input port of the drainage pipe faces the connection between the ventilation sub-pipe and the ventilation duct.

[0009] In some technical solutions of this utility model, a notch is provided at the connection between the ventilation sub-pipe and the ventilation duct, and an opening and closing plate for opening and closing the connection between the ventilation sub-pipe and the ventilation duct is slidably provided in the notch, and rubber layers are provided on both sides of the opening and closing plate.

[0010] In some technical solutions of this utility model, a mounting bracket is provided on the outer wall of the ventilation sub-pipe, and the mounting bracket is rotatably connected to an adjusting rod threaded thereto. The adjusting rod is rotatably connected to the opening and closing plate.

[0011] In some technical solutions of this utility model, an atomizing nozzle is installed inside the ventilation secondary pipe, and the atomizing nozzle is connected to an atomizing device installed in the factory.

[0012] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: the air supply equipment pumps external air into the ventilation duct, and after the airflow is diverted through the ventilation secondary pipe, part of the airflow is obliquely sprayed into the guiding area through the guide pipe, impacting the guide plate to generate tangential force and driving the guide pipe to rotate continuously; the main airflow is then sent into the factory space through the rotating guide pipe and after being obliquely guided by the guide plate, in a dynamic diffusion manner, so that the temperature gradient change in the factory is not significant. In addition, the rotating guide pipe enhances the air diffusion efficiency and avoids the local strong wind output from the guide pipe from stimulating the black bear; the obliquely set guide plate improves the mixing effect of airflow and air and reduces temperature stratification. Attached Figure Description

[0013] Figure 1 This is a top view of the ventilation device in this utility model.

[0014] Figure 2 This is a side view of the ventilation device in this utility model.

[0015] Figure 3 This is a schematic diagram of the ventilation duct and ventilation secondary pipe in this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the air intake plate and air duct in this utility model.

[0017] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] Figure 6 for Figure 2 A top view of the structure of the central air guide plate and air duct.

[0019] Reference numerals in the attached drawings: 1. Ventilation duct; 2. Air supply equipment; 3. Ventilation secondary duct; 4. Air guide duct; 5. Air guide plate; 6. Guiding area; 7. Drainage plate; 8. Drainage pipe; 9. Mounting groove; 10. Guide ring; 11. Shaft; 12. Opening and closing plate; 13. Mounting bracket; 14. Adjustment rod; 15. Atomizing nozzle. Detailed Implementation

[0020] 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 only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0022] Example This utility model provides an environmental ventilation device for black bear farming, such as... Figures 1-6As shown, the system includes a ventilation duct 1 installed on the factory floor. The ventilation duct 1 is a rectangular or circular steel pipe, which can be pre-buried inside the factory or laid on the factory floor. Exhaust vents are provided on the factory walls. The ventilation duct 1 is connected to an external air supply system 2, which delivers outside air into the ventilation duct 1 to ensure ventilation efficiency. Several secondary ventilation ducts 3, connected to the ventilation duct 1, are equidistantly arranged on its outer wall. These secondary ventilation ducts 3 are inclined and can be installed on both sides of the main ventilation duct 1 to improve airflow efficiency. A ventilation duct 3, located away from the ventilation duct 1, is equipped with a rotating air guide duct 4. An air guide plate 5 is inclinedly installed inside the air guide duct 4. An annular guiding area 6 exists between the inner wall of the ventilation duct 3 and the outer wall of the air guide duct 4. Several air guide plates 7, placed within the guiding area 6, are arranged around the outer wall of the air guide duct 4. An air guide duct 8, connected to the guiding area 6, is installed inside the ventilation duct 3. Airflow from the air guide duct 8 flows obliquely between any two air guide plates 7, thus driving the air guide duct 4 to rotate. Within the ventilation duct 3, the airflow ejected through the air guide duct 8 impacts the air guide plates 7, generating torque and enabling the air guide duct 4 to rotate without electricity. Furthermore, the air guide plates 5 change the airflow direction during rotation, creating a three-dimensional turbulence, preventing the ventilation structure from directly blowing air onto the bear and thus preventing the bear from becoming agitated. In actual use, the air supply device 2 pumps external air into the ventilation duct 1. After the airflow is split by the ventilation secondary duct 3, part of the airflow is obliquely injected into the guiding area 6 through the guide pipe 8, impacting the guide plate 7 to generate tangential force, driving the air guide duct 4 to rotate continuously. The main airflow passes through the rotating air guide duct 4 and is guided by the oblique air guide plate 5 before being delivered into the factory space in a dynamic diffusion manner. In the above air guiding structure, there is no need for a motor to drive the air guide duct 4 to rotate, which achieves the purpose of energy saving. In addition, the rotating air guide duct 4 enhances the air diffusion efficiency and avoids the local strong wind output from the air guide duct 4 from irritating the black bear. The obliquely set air guide plate 5 improves the mixing effect of airflow and air, and reduces temperature stratification.

[0023] In some technical solutions of this utility model, an installation groove 9 is provided along the circumference of the air guide duct 4, and the two ends of the installation groove 9 are connected. Several guide plates 7 are arranged around the installation groove 9. Two guide rings 10 are provided on the inner side wall of the ventilation sub-duct 3. Parts of the two guide rings 10 are embedded in the installation groove 9. The two guide rings 10 and the installation groove 9 form a sliding bearing structure, which constrains radial displacement and reduces frictional resistance. The guide rings 10 also provide support for the circumferential movement of the air guide duct 4, so that the ventilation duct maintains axial stability and rotates with low resistance in the ventilation sub-duct 3, improves rotational stability, and avoids the air guide duct 4 from swaying; reduces mechanical wear and extends service life.

[0024] In some technical solutions of this utility model, both ends of the air guide plate 5 are provided with shafts 11. One shaft 11 is rotatably disposed inside the air guide pipe 4; the other shaft 11 extends outward after passing through the outer wall of the air guide pipe 4, and the extended section of the shaft 11 is provided with an external thread that is threaded to the air guide pipe 4. By turning the external thread section to adjust the displacement of the shaft 11, the air guide plate 5 is rotated and its tilt angle is changed. This structure can adjust the air supply angle according to the season or demand, and the mechanical adjustment structure of the shaft 11 and the threaded engagement is simple and reliable, and adaptable to humid environments.

[0025] In some technical solutions of this utility model, the number of air guide plates 5 is at least two, and the two air guide plates 5 are equidistantly arranged in the air guide pipe 4 along the radial direction of the ventilation secondary pipe 3. The two air guide plates 5 guide the airflow in segments during rotation, forming multiple vortices. This structure increases the airflow interface through the air guide plates 5 to enhance the airflow shearing effect, improve the turbulent mixing intensity, and further improve the air mixing uniformity; it also reduces the airflow velocity gradient and avoids discomfort caused by direct airflow to animals.

[0026] In some technical solutions of this utility model, the input end of the diversion pipe 8 is inclinedly disposed inside the ventilation secondary pipe 3, and the input port of the diversion pipe 8 faces the connection between the ventilation secondary pipe 3 and the ventilation duct 1. The input port of the diversion pipe 8 faces the incoming flow direction of the ventilation duct 1, thereby utilizing the main airflow pressure to increase the jet speed of the diversion pipe 8 and improve the reliability of the rotational power of the air guide pipe 4; the air guide pipe 4 can be driven to rotate without the need for an additional pressurization device.

[0027] In some technical solutions of this utility model, a notch is provided at the connection between the ventilation secondary pipe 3 and the ventilation duct 1. An opening / closing plate 12 for opening and closing the connection between the ventilation secondary pipe 3 and the ventilation duct 1 is slidably provided in the notch. Rubber layers are provided on both sides of the opening / closing plate 12. By sliding the opening / closing plate 12, the connection section between the ventilation secondary pipe 3 and the main pipe is controlled. The rubber layers ensure the sealing of the connection between the ventilation secondary pipe 3 and the ventilation duct 1, realizing zoned ventilation control to adapt to different breeding density requirements. The rubber layers also play a role in preventing air leakage and ensuring stable air pressure output from the ventilation secondary pipe 3.

[0028] In some technical solutions of this utility model, a mounting bracket 13 is provided on the outer wall of the ventilation secondary pipe 3. The mounting bracket 13 is rotatably connected to an adjusting rod 14 threadedly connected to it. The adjusting rod 14 is rotatably connected to the opening and closing plate 12. Rotating the adjusting rod 14 pushes the opening and closing plate 12 to slide linearly. The threaded transmission provides a self-locking function. The screw mechanism converts the rotational motion into linear displacement, realizing stepless adjustment of the opening degree of the opening and closing plate 12 and precisely controlling the local ventilation volume. After the screw and the thread are self-locked, vibration and displacement of the opening and closing plate 12 are also prevented.

[0029] In some technical solutions of this utility model, an atomizing nozzle 15 is installed inside the ventilation secondary pipe 3, and the atomizing nozzle 15 is connected to an atomizing device installed in the factory. The atomizing nozzle 15 atomizes water inside the ventilation secondary pipe 3 and sprays it out with the airflow to form a two-phase flow of air and mist, simultaneously achieving ventilation and humidity regulation; in summer, the atomization evaporation cooling improves the heat stress of black bears.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An environmental ventilation device for black bear farming, characterized by, The system includes a ventilation duct (1) installed on the surface of the factory building, which is connected to an air supply device (2) outside the factory building; a number of ventilation secondary pipes (3) are provided at equal intervals on the outer wall of the ventilation duct (1) and are connected to it; a guide pipe (4) is provided on the side of the ventilation secondary pipe (3) away from the ventilation duct (1), and a guide plate (5) is provided obliquely inside the guide pipe (4); there is a ring-shaped guiding area (6) between the inner wall of the ventilation secondary pipe (3) and the outer wall of the guide pipe (4), and a number of diversion plates (7) placed in the guiding area (6) are arranged around the outer wall of the guide pipe (4). A diversion pipe (8) is provided inside the ventilation secondary pipe (3) and is connected to the guiding area (6). The air output from the diversion pipe (8) flows obliquely between any two diversion plates (7) to drive the guide pipe (4) to rotate.

2. The environmental ventilation device for black bear farming according to claim 1, characterized in that, An installation groove (9) is opened around the circumference of the air guide pipe (4). The beginning and end of the installation groove (9) are connected. Several diversion plates (7) are arranged around the installation groove (9). Two guide rings (10) are provided on the inner side wall of the ventilation sub-pipe (3). Parts of the two guide rings (10) are embedded in the installation groove (9).

3. The environmental ventilation device for black bear farming according to claim 2, characterized in that, Both ends of the air guide plate (5) are provided with shafts (11), one of which is rotatably disposed inside the air guide pipe (4); the other shaft (11) extends outward after passing through the outer side wall of the air guide pipe (4), and the extension section of the shaft (11) is provided with an external thread that is threadedly connected to the air guide pipe (4).

4. The environmental ventilation device for breeding black bears according to claim 1 or 3, characterized in that, The number of air guide plates (5) is multiple, and the multiple air guide plates (5) are arranged equidistantly in the air guide pipe (4) along the radial direction of the ventilation sub-pipe (3).

5. The environmental ventilation device for black bear farming according to claim 1, characterized in that, The inlet of the drainage pipe (8) is inclined inside the ventilation sub-pipe (3), and the inlet of the drainage pipe (8) faces the connection between the ventilation sub-pipe (3) and the ventilation duct (1).

6. The environmental ventilation device for black bear farming according to claim 2, characterized in that, A notch is provided at the connection between the ventilation sub-pipe (3) and the ventilation duct (1). An opening and closing plate (12) for opening and closing the connection between the ventilation sub-pipe (3) and the ventilation duct (1) is slidably provided in the notch. Both sides of the opening and closing plate (12) are provided with rubber layers.

7. The environmental ventilation device for black bear farming according to claim 6, characterized in that, The ventilation sub-pipe (3) is provided with an installation bracket (13) on its outer side wall. The installation bracket (13) is rotatably provided with an adjustment rod (14) threadedly connected to it. The adjustment rod (14) is rotatably connected to the opening and closing plate (12).

8. The environmental ventilation device for black bear farming according to claim 1, characterized in that, The ventilation sub-pipe (3) is equipped with an atomizing nozzle (15), which is connected to an atomizing device installed in the factory building.

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