Indoor air ventilation and filtration equipment for pig farm

Abstract

The indoor air ventilating and filtering equipment comprises a ventilating pipe installed in a pig house, the ventilating pipe extends to the outer side of the top of the pig house, a rotating shaft is installed at the top of the ventilating pipe through a first support and a second support, and an exhaust fan is installed at the end, located at the ventilating pipe, of the rotating shaft through a gearbox; a conical water curtain filler is further mounted in the ventilation pipe, a water distribution pipe is mounted on the conical water curtain filler, an accumulated water collecting structure is mounted at the bottom of the conical water curtain filler, a plurality of ventilation holes are formed in the side wall of the bottom of the ventilation pipe, and adjusting structures are arranged at the ventilation holes. Natural wind is used for conducting ventilation treatment on the position, where ventilation is poor, in the hog house, ventilation of fresh air in the hog house is improved, peculiar smells in the hog house are reduced, meanwhile, exhausted gas is purified, the smell of the exhausted gas is reduced, the influence of a farm on the surroundings is reduced, and the air quality of the surroundings is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pigsty ventilation, in particular to an indoor air ventilation and filtering device for a pig farm. Background Technique

[0002] Pigs are one of the main sources of meat in our country. Pigs are warm-blooded animals and have relatively strict requirements for temperature. A suitable environmental temperature helps pigs maintain normal body temperature, improve feed utilization rate and production performance. Moreover, the appropriate humidity also has a great impact on the growth of pigs. Compared with the breeding of cattle, sheep and chickens, the breeding of pigs is prone to cause too high humidity in the environment and it is difficult to dissipate. Therefore, the air flow in the pigsty needs to be ensured throughout the year.

[0003] For large-scale farms, it is difficult to reach the deep part of the factory area using natural wind. Therefore, even when natural wind is relatively abundant, it is difficult to achieve relatively uniform ventilation and cooling. Moreover, there are harmful gases such as ammonia and hydrogen sulfide in the pigsty, which not only affect the growth of pigs but also cause environmental pollution when discharged to the outside, resulting in a large amount of peculiar smell in the factory area. For this reason, we propose an indoor air ventilation and filtering device for a pig farm to solve the above problems. Content of the Utility Model

[0004] This application provides an indoor air ventilation and filtering device for a pig farm, which solves the problems that the ventilation of some positions in the pigsty is not smooth and the gas in the pigsty is directly discharged with a large peculiar smell, affecting the surrounding environment.

[0005] This application provides an indoor air ventilation and filtering device for a pig farm, including a ventilation pipe installed in the pigsty. The ventilation pipe extends to the outside of the top of the pigsty. A rotating shaft is installed at the top of the ventilation pipe through a first bracket and a second bracket. A exhaust fan is installed at one end of the rotating shaft located inside the ventilation pipe through a gearbox. A vertical axis windmill is installed at one end of the rotating shaft located outside the ventilation pipe. A conical water curtain filler is also installed in the ventilation pipe. A water distribution pipe is installed on the conical water curtain filler. A water accumulation collection structure is installed at the bottom of the conical water curtain filler. A plurality of ventilation holes are provided on the bottom side wall of the ventilation pipe, and an adjustment structure is provided at the ventilation holes.

[0006] Preferably, the ventilation pipe is installed on the ground of the pigsty through a base.

[0007] Preferably, an exhaust cap is also installed at the top of the ventilation pipe.

[0008] Preferably, the water accumulation collection structure includes a collection box installed below the central axis of the conical water curtain filler. A diversion pipe is installed at the bottom of the collection box, and the diversion pipe extends outside the ventilation pipe.

[0009] Preferably, the adjusting structure includes a sleeve pipe sleeved on the ventilation pipe. A plurality of the ventilation holes at the same horizontal position form a group, and a plurality of the ventilation holes in the same group correspond to one sleeve pipe. A limiting groove is provided on the outer wall of the ventilation pipe, and a locking bolt is provided on the sleeve pipe, and the locking bolt extends into the limiting groove.

[0010] Preferably, a condensation plate is further provided at the upper end of the conical water curtain filling.

[0011] Preferably, the conical water curtain filling is a multi-layer metal mesh structure.

[0012] Preferably, a drain hole is provided at the bottom of the ventilation pipe.

[0013] As can be seen from the above technical solutions, the present application provides an indoor air ventilation and filtration device for a pig farm. When the present application is in use, it is installed at a position where the ventilation in the pigsty is not good. The ventilation pipe can be made of a plastic pipe or other metal pipes, and the ventilation pipe extends to the top of the pigsty, preferably at the center position of the triangular top. The air flow intensity at this position is large. In places where the air in the pigsty is not easy to flow, the size of the ventilation holes can be adjusted to adjust the air flow rate. Specifically, the power brought by the rotation of the vertical-axis windmill is used to drive the exhaust fan to rotate, so as to introduce the air around the ventilation holes into the ventilation pipe and discharge it. The air in the pigsty is discharged outside the pigsty through the exhaust fan. During the upward movement of the gas in the pigsty, it passes through the conical water curtain filling. On the conical water curtain filling, the water dripping from the water distribution pipe flows along the conical water curtain filling. When the air flow passes through, gases such as ammonia and hydrogen sulfide that are easily soluble in water are mixed with water, and the discharged gas can be purified. The water on the conical water curtain filling flows into the collection box and is discharged outside through the diversion pipe, and can be sent into the biogas digester for fermentation treatment, so as to accelerate the air circulation in the pigsty and purify the discharged gas.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Through the setting of the ventilation holes and the adjusting structure, the ventilation volume of the ventilation pipe can be set to avoid the influence of excessive ventilation volume on the temperature of the pigsty when the temperature is too low;

[0016] 2. Through the setting of the conical water curtain filling and the water distribution pipe, the contact area between the flowing air and water can be increased on the conical water curtain filling, so as to remove ammonia and hydrogen sulfide gases that are easily soluble in water, and reduce the influence on the surrounding air;

[0017] 3. Through the setting of the vertical-axis windmill and the exhaust fan, natural wind can be utilized to ventilate the positions where the air flow in the pigsty is poor, and the air flow is accelerated.

[0018] In summary, in the present application, natural wind is utilized to ventilate the positions with poor air circulation in the pigsty, improving the fresh air circulation in the pigsty, reducing the peculiar smell inside the pigsty, and at the same time purifying the discharged gas, reducing the smell of the discharged gas, reducing the impact of the farm on the surrounding area, and further improving the air quality of the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application, the accompanying drawings required for use in the implementation cases will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of an indoor air ventilation and filtration device for a pig farm proposed by the present utility model;

[0021] Figure 2 is a schematic structural diagram of part A of an indoor air ventilation and filtration device for a pig farm proposed by the present utility model;

[0022] Figure 3 is a schematic installation structural diagram of an indoor air ventilation and filtration device for a pig farm proposed by the present utility model;

[0023] In the figure: 1 ventilation pipe, 2 sleeve pipe, 3 drain hole, 4 limit groove, 5 ventilation hole, 6 locking bolt, 7 collection box, 8 first bracket, 9 second bracket, 10 vertical-axis windmill, 11 exhaust cap, 12 rotating shaft, 13 exhaust fan, 14 diversion pipe, 15 conical water curtain filling, 16 condensation plate, 17 water distribution pipe, 18 base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] See Figures 1-3 , an indoor air ventilation and filtration device for a pig farm. The present application is mainly used to ventilate the positions with poor air circulation in the pigsty to avoid the accumulation of harmful gases such as hydrogen sulfide and ammonia at these positions, which may affect the growth of surrounding pigs. Specifically, it includes a ventilation pipe 1 installed in the pigsty, and the ventilation pipe 1 is For metal or plastic pipes, the ventilation pipe 1 extends to the outside of the top of the pigsty. The top of the ventilation pipe 1 and the top of the pigsty can be installed flush. The top of the ventilation pipe 1 is installed with a rotating shaft 12 through a first bracket 8 and a second bracket 9. Installing the rotating shaft 12 in this two-point installation method can stably support the rotating shaft 12 and ensure its stable rotation. One end of the rotating shaft 12 located in the ventilation pipe 1 is installed with an exhaust fan 13 through a gearbox. The exhaust fan 13 mainly discharges the air in the ventilation pipe 1 from the top end. One end of the rotating shaft 12 located outside the ventilation pipe 1 is installed with a vertical axis windmill 10. The size of the vertical axis windmill 10 should be such that it can drive the exhaust fan 13 to rotate and fully discharge the gas in the ventilation pipe 1. It should be noted that in this application, the vertical axis windmill 10 is set to rotate in one direction. In this application, the vertical axis windmill 10 can be used to drive the vertical axis windmill 10 to rotate by natural wind, thereby driving the rotating shaft 12 to rotate to achieve the purpose of exhaust. Without installing energy-consuming equipment such as motors, the exhaust work can be completed, and the installation cost is low, which can effectively improve the air flow in the pigsty and avoid the generation of various harmful gases in the airflow dead corners;

[0026] Furthermore, since there are harmful and odorous gases such as hydrogen sulfide and ammonia in the discharged gas, a conical water curtain filler 15 is also installed in the ventilation pipe 1. In this application, the conical water curtain filler 15 is a multi-layer metal mesh structure. A water distribution pipe 17 is installed on the conical water curtain filler 15. The water distribution pipe 17 sprays water along the circumference of the conical water curtain filler 15, and the sprayed water flows along the conical water curtain filler 15. When the air passes through the conical water curtain filler 15, ammonia, hydrogen sulfide gas and some bacteria that are easily soluble in water will be dissolved in the water. A water accumulation collection structure is installed at the bottom of the conical water curtain filler 15. The adsorbed water flows into the water accumulation collection structure and is uniformly processed through the drainage pipe or sent to the biogas digester for treatment. A plurality of ventilation holes 5 are provided on the bottom side wall of the ventilation pipe 1. In this application, the air circulation in the pigsty mainly passes through the ventilation holes 5. The negative pressure generated at the ventilation holes 5 drives the surrounding air to circulate to achieve the purpose of ventilation. An adjustment structure is provided at the ventilation holes 5. On the one hand, it can adjust the ventilation size. A larger ventilation opening allows the outside temperature to affect the temperature in the pigsty. On the other hand, the ventilation holes 5 can be completely blocked to close the circulation and achieve timed ventilation in winter to maintain the temperature in the pigsty.

[0027] In the present utility model, the ventilation pipe 1 is installed on the ground of the pigsty through a base 18. Specifically, the fixation of the ventilation pipe 1 can be achieved by setting anchor flanges.

[0028] In some embodiments, in order to reduce the influence of the flowing air outside the pigsty roof on the exhaust of the ventilation pipe 1, an exhaust cap 11 is also installed on the top of the ventilation pipe 1 to reduce the influence of external wind on the exhaust and further reduce the backflow of rainwater.

[0029] In the present utility model, the water accumulation collection structure includes a collection box 7 installed below the central axis of the conical water curtain filling 15. The water on the conical water curtain filling 15 flows downward along the conical water curtain filling 15, flows down at the center point, and enters the collection box 7. A diversion pipe 14 is installed at the bottom of the collection box 7, and the diversion pipe 14 extends outside the ventilation pipe 1, and the water for purifying the air is discharged through the diversion pipe 14.

[0030] In the present utility model, the adjustment structure includes a sleeve pipe 2 sleeved on the ventilation pipe 1. A plurality of ventilation holes 5 at the same horizontal position are grouped together, and a plurality of ventilation holes 5 in the same group correspond to one sleeve pipe 2. One sleeve pipe 2 can adjust a plurality of ventilation holes 5 at the same horizontal position simultaneously. A limiting groove 4 is provided on the outer wall of the ventilation pipe 1, and a locking bolt 6 is provided on the sleeve pipe 2. The locking bolt 6 extends into the limiting groove 4. The limiting groove 4 can prevent the sleeve pipe 2 from falling off, and loosening or tightening the locking bolt 6 can adjust or fix the sleeve pipe 2.

[0031] In some embodiments, a condensation plate 16 is further provided at the upper end of the conical water curtain filling 15 to condense part of the water mist into water at the conical water curtain filling 15 and discharge it, reducing the discharge amount of harmful gases.

[0032] In some embodiments, a drain hole 3 is provided at the bottom of the ventilation pipe 1, and the water entering the ventilation pipe 1 can be discharged through the drain hole 3.

[0033] As can be seen from the above technical solutions, when the present application is in use, it is installed at a position in the pigsty where the ventilation is not good. The ventilation pipe 1 can be made of a plastic pipe or other metal pipes. The ventilation pipe 1 extends to the top of the pigsty, preferably at the center position of the triangular top. The air flow intensity at this position is large. In places where the air in the pigsty is not easy to flow, the size of the ventilation holes 5 can be adjusted to adjust the air flow rate. Specifically, the power brought by the rotation of the vertical axis windmill 10 drives the exhaust fan 13 to rotate, so as to introduce the air around the ventilation holes 5 into the ventilation pipe 1 and discharge it. After being discharged by the exhaust fan 13 outside the pigsty, when the gas in the pigsty moves upward, it passes through the conical water curtain filling 15. On the conical water curtain filling 15, the water dripping from the water distribution pipe 17 flows along the conical water curtain filling 15. When the air flow passes, gases such as ammonia and hydrogen sulfide that are easily soluble in water are mixed with the water, which can purify the discharged gas. The water on the conical water curtain filling 15 flows into the collection box 7 and is discharged outside through the diversion pipe 14, and can be sent into the biogas digester for fermentation treatment, so as to achieve the effect of accelerating the air circulation in the pigsty and purifying the discharged gas.

[0034] Other embodiments of the present application will be readily apparent to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only to be considered as exemplary, and the true scope of the present application is pointed out by the claims.

[0035] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the present application described above do not constitute a limitation on the protection scope of the present application.

Claims

1. An indoor air ventilation and filtration device for a pig farm, comprising a ventilation pipe (1) installed in a pigsty, characterized in that: The ventilation pipe (1) extends to the outside of the top of the pigsty. A rotating shaft (12) is installed at the top of the ventilation pipe (1) through a first bracket (8) and a second bracket (9). An exhaust fan (13) is installed at one end of the rotating shaft (12) located inside the ventilation pipe (1) through a gearbox. A vertical-axis windmill (10) is installed at one end of the rotating shaft (12) located outside the ventilation pipe (1). A conical water curtain filler (15) is also installed inside the ventilation pipe (1). A water distribution pipe (17) is installed on the conical water curtain filler (15). A water accumulation collection structure is installed at the bottom of the conical water curtain filler (15). A plurality of ventilation holes (5) are provided on the bottom side wall of the ventilation pipe (1), and an adjustment structure is provided at the ventilation holes (5).

2. The indoor air ventilation and filtration equipment for a pig farm according to claim 1, characterized in that, The ventilation pipe (1) is installed on the ground of the pigsty through a base (18).

3. An indoor air ventilation and filtration device for a pig farm according to claim 1, characterized in that, An exhaust cap (11) is also installed at the top of the ventilation pipe (1).

4. An indoor air ventilation and filtration device for a pig farm according to claim 1, characterized in that, The water accumulation collection structure includes a collection box (7) installed below the central axis of the conical water curtain filler (15). A diversion pipe (14) is installed at the bottom of the collection box (7), and the diversion pipe (14) extends outside the ventilation pipe (1).

5. An indoor air ventilation and filtration device for a pig farm according to claim 1, characterized in that, The adjustment structure includes a sleeve pipe (2) sleeved on the ventilation pipe (1). A plurality of the ventilation holes (5) at the same horizontal position are grouped together, and a plurality of the ventilation holes (5) in the same group correspond to one sleeve pipe (2). A limit groove (4) is provided on the outer wall of the ventilation pipe (1). A locking bolt (6) is provided on the sleeve pipe (2), and the locking bolt (6) extends into the limit groove (4).

6. The indoor air ventilation and filtration equipment for a pig farm according to claim 1, wherein, A condensation plate (16) is also provided at the upper end of the conical water curtain filler (15).

7. An indoor air ventilation and filtration device for a pig farm according to claim 1, characterized in that, The conical water curtain filler (15) is a multi-layer metal mesh structure.

8. An indoor air ventilation and filtration device for a pig farm according to claim 1, characterized in that, A drain hole (3) is provided at the bottom of the ventilation pipe (1).

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