Hog house ventilation device

Abstract

The utility model discloses a hog house ventilation device which is characterized in that a first ventilation pipe and a second ventilation pipe are both fixed to a roof of a hog house, and the first ventilation pipe and the second ventilation pipe are communicated with the interior of the hog house through two ventilation through holes respectively; a connecting through hole is formed in the cover plate, the first ventilation pipe and the second ventilation pipe are connected with the cover plate in a sliding mode at the same time, and the first ventilation pipe and the second ventilation pipe can directly face and communicate with the connecting through hole. The air outlet end of the fan is communicated with the connecting through hole; the heat exchange pipe is installed in the hog house and communicates with the first ventilation pipe, and a heat exchange channel communicating with a hot water tank of the solar water heater is arranged on the heat exchange pipe. In cold seasons, the fan can be connected with the first ventilation pipe, air entering the hog house can be heated by the heat exchange pipe, the solar water heater serves as a heat source of the heat exchange pipe, and energy conservation and environment protection are achieved; when the temperatures inside and outside the hog house are similar, the fan is connected with the ventilation pipe II, and fresh air outside the hog house is directly injected into the hog house by the fan; and the air supply resistance of the fan is low without passing through the heat exchange tube.

Description

Technical Field

[0001] The utility model relates to the field of breeding equipment, and more specifically to a pig house ventilation device. Background Art

[0002] Pig houses often use negative pressure ventilation to achieve air exchange inside and outside. The air inlet end of the fan is connected to the pig house. The fan extracts the dirty air in the pig house, and fresh air from the outside can enter through gaps such as doors and windows of the pig house, thereby achieving gas exchange in the pig house. This ventilation method is simple and effective; but there are still certain problems. For example, in winter, the temperature difference between the inside and outside of the pig house is large. While ensuring air circulation, the temperature inside the pig house must also be kept constant. The fan extracts air from the pig house, and the external cold air has no heating measures when entering the pig house. This will cause the temperature inside the pig house to drop. If the fan speed is reduced, that is, the flow of air entering the pig house is reduced, although the temperature inside the pig house can be kept close to stable, the ventilation effect is greatly reduced.

[0003] Therefore, how to provide a pig house ventilation device that can overcome the above problems is an issue that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] In view of this, the utility model provides a pig house ventilation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pig house ventilation device is installed on the roof of the pig house, and a solar water heater is installed on the roof of the pig house, comprising: ventilation pipe one, ventilation pipe two, a cover plate, a fan and a heat exchange pipe, the ventilation pipe one and the ventilation pipe two are both arranged vertically and the lower ends of the two are fixed to the roof of the pig house, two air holes are provided on the roof of the pig house, the two air holes are respectively opposite to and connected with the ventilation pipe one and the ventilation pipe two; the plate surface of the cover plate is arranged horizontally and is provided with a connecting hole, the upper open end of the ventilation pipe one and the upper open end of the ventilation pipe two are simultaneously slidably sealed and provided with a cover plate, and the sliding direction of the cover plate relative to the pig house is the same as that of the The center lines of the ventilation duct one and the ventilation duct two are parallel to a vertical plane jointly defined, and the ventilation duct one and the ventilation duct two can both be opposite to and connected with the connecting through-hole; the fan is installed on the cover plate, the air outlet of the fan is connected with the connecting through-hole, and the air inlet of the fan is located outside the pig house; one end of the heat exchange tube is sealed and fixed on the inner side of the roof of the pig house, the heat exchange tube is opposite to and connected with the ventilation duct one, and a heat exchange channel is integrally formed on the inner wall of the heat exchange tube, and an inlet and an outlet are provided on the heat exchange tube, both of which are connected with the heat exchange channel, and the inlet and the outlet are both connected with the hot water tank of the solar water heater.

[0007] Through the above technical solution, it can be seen that compared with the prior art, the utility model discloses a pig house ventilation device, which is provided by the present application through arranging a ventilation pipe 1 and a ventilation pipe 2 on the roof of the pig house, the ventilation pipe 1 and the ventilation pipe 2 are respectively connected to the inside of the pig house through a breathable through hole, the heat exchange pipe is located in the pig house and is connected to the ventilation pipe 1, the heat exchange channel in the heat exchange pipe is connected to the hot water tank water channel of the solar water heater, and the fresh air outside the pig house will exchange heat with the heat exchange pipe with a higher temperature when passing through the heat exchange pipe, that is, the heat exchange pipe will heat up the fresh air entering the pig house; the cover plate is slidably connected to the ventilation pipe 1 and the ventilation pipe 2 at the same time, and the cover plate is provided with a connecting through hole, which is connected to the fan;

[0008] In cold seasons, when the temperature inside the pig house is higher than the temperature outside, the cover is moved to connect the fan to the ventilation pipe. When the fan injects fresh air from outside into the pig house, the air will be heated by the heat exchange pipe to ensure that the air temperature entering the pig house is high. The heat exchange pipe uses the solar water heater as its heat source, which is energy-saving and environmentally friendly.

[0009] In non-cold seasons, when the temperature inside and outside the pig house is similar, move the cover to connect the fan to ventilation pipe 2. The fan will inject fresh air from outside the pig house directly into the pig house. Since it does not pass through the heat exchange tube and heat exchange fins are provided on the inside of the heat exchange tube, the air supply resistance of the fan is low, less dust accumulates on the inside of the heat exchange tube, and its cleaning cycle is extended.

[0010] Preferably, the first ventilation duct is provided with a first inverted T-shaped chute extending through its upper end wall and two opposing side walls, and the second ventilation duct is provided with a second inverted T-shaped chute extending through its upper end wall and two opposing side walls. The cover plate is a rectangular plate with its length parallel to a vertical plane defined by the centerlines of the first and second ventilation ducts. The cover plate is simultaneously slidably and tightly fitted into the first and second inverted T-shaped chute slots. The cover plate can be securely slidably connected to the first and second ventilation ducts.

[0011] Preferably, a stop bar is integrally formed at each end of the cover plate, the length direction of the stop bar being the same as the width direction of the cover plate, and the two stop bars can respectively abut against the outer wall of the first ventilation duct and the outer wall of the second ventilation duct, so that the cover plate will not detach from the first ventilation duct and the second ventilation duct.

[0012] Preferably, a horizontal insertion hole is formed on the outer side wall of the ventilation duct 1 and penetrates the side wall of the inverted T-shaped chute 1. A plurality of positioning holes are formed on the long side wall of the cover plate. The plurality of positioning holes are sequentially arranged along the length of the cover plate. One end of a positioning pin can pass through the insertion hole and be inserted into one of the positioning holes. After the cover plate is moved into place and the positioning pin is installed, the cover plate will not move at will.

[0013] Preferably, the invention further comprises a ventilation pipe 3, which is located outside the piggery and can be located in the inverted T-shaped chute 1 or the inverted T-shaped chute 2. The ventilation pipe 3 is arranged vertically and its lower end is fixed to the upper plate surface of the cover plate. The ventilation pipe 3 is directly opposite to and connected to the connecting through hole, and the fan is tightly embedded in the ventilation pipe 3. The fan can be reliably arranged in the ventilation pipe 3.

[0014] Preferably, the air conditioner further comprises an ultraviolet disinfection lamp, which is annular and coaxially fixed in the ventilation pipe 3, and is located below the fan. The air entering the ventilation pipe 3 will be disinfected by the ultraviolet disinfection lamp.

[0015] Preferably, the device further comprises a heating wire, which is fixed in the ventilation pipe 3 and located below the ultraviolet disinfection lamp. The heating wire can assist the heat exchange pipe in heating the air.

[0016] Preferably, the device further includes a rain shield, which is arranged vertically with its upper end closed and its lower end open. The upper end of the ventilation duct (3) is fixed to the inner wall of the closed end of the rain shield. The inner diameter of the rain shield is larger than the outer diameter of the ventilation duct (3). The side wall of the ventilation duct (3) is uniformly provided with multiple air inlets, all located inside the rain shield and above the fan. This prevents impurities and rainwater from entering the ventilation duct (3) from outside the piggery.

[0017] Preferably, the inner side wall of the heat exchange tube is uniformly and integrally formed with a plurality of hollow heat exchange fins, and the heat exchange channel is connected to the interior of the heat exchange fins. The heat exchange fins can improve the efficiency of heat exchange with the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 An overall axonometric view of a pig house ventilation device Figure 1 ;

[0020] Figure 2 A partial axonometric view of a pig house ventilation system Figure 1 ;

[0021] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0022] Figure 4 A partial axonometric view of a pig house ventilation system Figure 2 ;

[0023] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 6 An overall axonometric view of a pig house ventilation device Figure 2 ;

[0025] Figure 7 A partial axonometric view of a pig house ventilation system Figure 3 ;

[0026] Figure 8 This is an axonometric diagram of the heat exchange tubes in a pig house ventilation system.

[0027] In the figure:

[0028] 1 is a pig house, 2 is a solar water heater, 3 is ventilation pipe one, 30 is an inverted T-shaped chute one, 31 is a socket, 4 is ventilation pipe two, 40 is an inverted T-shaped chute two, 5 is a cover, 50 is a baffle, 51 is a positioning hole, 6 is a fan, 7 is a heat exchange pipe, 70 is a heat exchange channel, 71 is an inlet, 72 is an outlet, 73 is a heat exchange fin, 8 is a positioning pin, 9 is ventilation pipe three, 90 is an air inlet, 10 is an ultraviolet disinfection lamp, 11 is an electric heating wire, and 12 is a rain cover. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The utility model discloses a pig house ventilation device, which is provided with a ventilation pipe 1 3 and a ventilation pipe 2 4 on the roof of the pig house 1. The ventilation pipe 1 3 and the ventilation pipe 2 4 are respectively connected to the interior of the pig house 1 through a ventilation hole. The heat exchange pipe is located in the pig house 1 and is connected to the ventilation pipe 1 3. The heat exchange channel 70 in the heat exchange pipe is connected to the hot water tank water channel of the solar water heater 2. When the fresh air outside the pig house 1 passes through the heat exchange pipe, it will exchange heat with the heat exchange pipe with a higher temperature. That is, the heat exchange pipe will heat the fresh air entering the pig house 1; the cover plate 5 is slidably connected to the ventilation pipe 1 3 and the ventilation pipe 2 4 at the same time. The cover plate 5 is provided with a connecting through hole, which is connected to the fan 6;

[0031] In cold seasons, that is, when the temperature inside the pig house 1 is higher than the temperature outside the pig house 1, the cover plate 5 is moved to connect the fan 6 to the ventilation pipe 3. When the fan 6 injects fresh air from outside the pig house 1 into the pig house 1, the air will be heated by the heat exchange pipe, ensuring that the air temperature entering the pig house 1 is high. The heat exchange pipe uses the solar water heater 2 as its heat source, which is energy-saving and environmentally friendly.

[0032] In non-cold seasons, that is, when the temperature inside and outside the pig house 1 is similar, the cover plate 5 is moved to connect the fan 6 to the ventilation pipe 2 4. The fan 6 injects fresh air from outside the pig house 1 directly into the pig house 1. Since the air does not pass through the heat exchange tube and the heat exchange fins 73 are provided on the inside of the heat exchange tube, the air supply resistance of the fan 6 is low, and the dust inside the heat exchange tube is less, thereby extending the cleaning cycle.

[0033] By designing the positioning pins 8, the jacks 31 and the positioning holes 51, after the cover 5 is moved into place and the positioning pins 8 are installed, the cover 5 will not move at will;

[0034] By designing the inverted T-shaped chute 1 30 and the inverted T-shaped chute 2 40, the cover plate 5 can be reliably slidably connected with the ventilation pipe 1 3 and the ventilation pipe 2 4;

[0035] By designing the blocking strip 50, the cover plate 5 will not be separated from the ventilation pipe 1 3 and the ventilation pipe 2 4;

[0036] By designing the ultraviolet disinfection lamp 10, the external air will be disinfected by the ultraviolet disinfection lamp 10 in advance when entering the pig house 1 through the ventilation pipe 3 9;

[0037] By designing the heating wire 11, when the hot water temperature in the solar water heater 2 is not high enough, the heating wire 11 can assist in heating the air.

[0038] By designing the rain cover 12, external impurities and rainwater will not enter the ventilation pipe 3 9.

[0039] Example

[0040] See attached Figure 1-8 Schematic diagram of the overall and partial structures of an embodiment of the utility model. The utility model specifically discloses a pig house ventilation device, which is installed on the roof of the pig house 1. A solar water heater 2 is installed on the roof of the pig house 1. The solar water heater 2 is a prior art.

[0041] The ventilation device includes: ventilation pipe 1 3, ventilation pipe 2 4, cover plate 5, fan 6 and heat exchange pipe;

[0042] The ventilation pipe 1 3 and the ventilation pipe 2 4 are both arranged vertically and the lower ends of the two are fixed to the roof of the pig house 1. There are two ventilation holes on the roof of the pig house 1, and the two ventilation holes are respectively opposite to and connected to the ventilation pipe 1 3 and the ventilation pipe 2 4;

[0043] The plate surface of the cover plate 5 is arranged horizontally and is provided with a circular connecting through hole. The upper open end of the ventilation pipe 1 3 and the upper open end of the ventilation pipe 2 4 are simultaneously slidably sealed and buckled with a cover plate 5. The sliding direction of the cover plate 5 relative to the pig house 1 is parallel to a vertical plane defined by the center line of the ventilation pipe 1 3 and the center line of the ventilation pipe 2 4. The ventilation pipe 1 3 and the ventilation pipe 2 4 can both be aligned with and connected to the connecting through hole. By pushing the cover plate 5 to move, the connecting through hole can be connected to the ventilation pipe 1 3 or the ventilation pipe 2 4. When the connecting through hole is connected to the ventilation pipe 1 3, the cover plate 5 blocks the ventilation pipe 2 4. Conversely, when the connecting through hole is connected to the ventilation pipe 2 4, the cover plate 5 blocks the ventilation pipe 1 3.

[0044] The fan 6 is installed on the cover plate 5. The fan 6 in this application is an axial flow fan. The air outlet of the fan 6 is connected to the connecting through hole, and the air inlet of the fan 6 is located outside the pig house 1. The fan 6 can transport fresh air outside the pig house 1 into the pig house 1. The air pressure in the pig house 1 increases, and the fresh air entering the pig house 1 from the ventilation through hole will squeeze out the dirty air in the pig house 1. The dirty air in the pig house 1 will be discharged from gaps such as doors and windows;

[0045] One end of the heat exchange tube is sealed and fixed on the inner side of the roof of the pig house 1. The heat exchange tube is positioned opposite to and connected to the ventilation tube 3. A heat exchange channel 70 is integrally formed on the inner wall of the heat exchange tube. An inlet 71 and an outlet 72 are provided on the heat exchange tube, both of which are connected to the heat exchange channel 70. The inlet 71 and the outlet 72 are both connected to the hot water tank of the solar water heater 2. When the fan 6 is connected to the ventilation tube 3, the outside air can only enter the pig house 1 through the heat exchange tube. The heat exchange channel 70 is connected to the hot water tank of the solar water heater 2, that is, there is hot water in the heat exchange channel 70. The fresh air passing through the heat exchange tube will be heated, thereby ensuring that the fresh air entering the pig house 1 has a certain temperature, avoiding the internal environment temperature from dropping when the pig house 1 is ventilated in cold seasons. A circulation pump can also be connected in series between the outlet 72 and the water tank of the solar water heater 2 to accelerate the water flow rate in the heat exchange channel 70 and improve the heat exchange efficiency.

[0046] An inverted T-shaped chute 1 30 is provided on the ventilation pipe 1 3, which passes through its upper end wall and two opposite side walls. An inverted T-shaped chute 2 40 is provided on the ventilation pipe 2 4, which passes through its upper end wall and two opposite side walls. The groove length direction of the inverted T-shaped chute 1 30 is the same as the groove length direction of the inverted T-shaped chute 2 40. The cover plate 5 is a rectangular plate and its plate length direction is parallel to a vertical plane jointly defined by the tube center line of the ventilation pipe 1 3 and the tube center line of the ventilation pipe 2 4. The cover plate 5 is slidably and tightly embedded in the inverted T-shaped chute 1 30 and the inverted T-shaped chute 2 40 at the same time; the cover plate 5 can move flexibly along the groove length direction of the inverted T-shaped chute 1 30.

[0047] A baffle 50 is integrally formed at each end of the cover plate 5. The length direction of the baffle 50 is the same as the width direction of the cover plate 5. The two baffles 50 can respectively abut against the outer wall of the ventilation pipe 1 3 and the outer wall of the ventilation pipe 2 4; the cover plate 5 will not fall out of the inverted T-shaped slide groove 1 30 or the inverted T-shaped slide groove 2 40.

[0048] A plug hole 31 is horizontally opened on the outer side wall of the ventilation pipe 3, which passes through the side wall of the inverted T-shaped slide groove 30. Two positioning holes 51 are opened on the long side wall of the cover plate 5. The two positioning holes 51 are arranged in sequence along the length direction of the cover plate 5. One end of the positioning pin 8 can pass through the plug hole 31 and be inserted into one of the positioning holes 51; move the cover plate 5, and when the air permeable hole is aligned with the position of the ventilation pipe 3 or the ventilation pipe 2 4, the positioning pin 8 can be inserted into place to ensure that the cover plate 5 will not move at will.

[0049] To be more specific, it also includes a ventilation pipe three 9, which is located outside the pig house 1. The ventilation pipe three 9 can be located in the inverted T-shaped chute one 30 or the inverted T-shaped chute two 40. The ventilation pipe three 9 is arranged vertically and its lower end is fixed to the upper plate surface of the cover plate 5. The ventilation pipe three 9 is opposite to and connected to the connecting through hole. The fan 6 is tightly embedded in the ventilation pipe three 9, and the air outlet end of the fan 6 is arranged vertically downward.

[0050] To be more specific, it also includes an ultraviolet disinfection lamp 10, which is annular and coaxially fixed in the ventilation pipe 3 9. The ultraviolet disinfection lamp 10 is located below the fan 6. When the ultraviolet disinfection lamp 10 is turned on, the air blown out by the fan 6 enters the pig house 1 after being sterilized by the ultraviolet rays of the ultraviolet disinfection lamp 10.

[0051] To be more specific, it also includes a heating wire 11, which is fixed in the ventilation pipe three 9 and is located below the ultraviolet disinfection lamp 10; when the fan 6 is connected to the ventilation pipe 3 and the hot water temperature of the solar water heater 2 is not high, the heating wire 11 can be turned on to assist in heating the air blown out by the fan 6.

[0052] To be more specific, it also includes a rain cover 12 with a circular cross-sectional outer contour. The rain cover 12 is arranged vertically and its upper end is closed and the lower end is open. The upper end of the ventilation pipe three 9 is fixed to the inner wall of the closed end of the rain cover 12. The inner contour diameter of the rain cover 12 is larger than the outer diameter of the ventilation pipe three 9. A plurality of air inlets 90 are evenly arranged circumferentially on the side wall of the ventilation pipe three 9. The plurality of air inlets 90 are all located on the inner side of the rain cover 12, and the air inlets 90 are located above the fan 6. When it rains or blows, rainwater or impurities will not directly enter the ventilation pipe three 9 from the air inlet 90.

[0053] The inner wall of the heat exchange tube is uniformly and integrally formed with multiple hollow heat exchange fins 73. The heat exchange channel 70 is connected to the interior of the heat exchange fins 73. The heat exchange fins 73 can improve the heat exchange effect between the hot water in the heat exchange tube and the air flowing inside the heat exchange tube.

[0054] When the ventilation device is used:

[0055] When there is no need to heat the air entering the pig house 1, the cover plate 5 is pushed to move so that the connecting hole is connected to the ventilation pipe 2 4, and the cover plate 5 blocks the ventilation pipe 1 3;

[0056] When the air entering the pig house 1 needs to be heated, the cover plate 5 is pushed to move so that the connecting hole is connected to the ventilation pipe 1 3 , and the cover plate 5 blocks the ventilation pipe 2 4 at the same time.

[0057] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0058] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pig house ventilation device, installed on the roof of a pig house (1), a solar water heater (2) is installed on the roof of the pig house (1), characterized in that: include: Ventilation pipe one (3), ventilation pipe two (4), cover plate (5), fan (6) and heat exchange pipe, the ventilation pipe one (3) and the ventilation pipe two (4) are arranged vertically and the lower ends of both are fixed to the roof of the pig house (1), two ventilation holes are provided on the roof of the pig house (1), and the two ventilation holes are respectively opposite to and connected with the ventilation pipe one (3) and the ventilation pipe two (4); the plate surface of the cover plate (5) is arranged horizontally and is provided with a connecting hole, the upper opening end of the ventilation pipe one (3) and the upper opening end of the ventilation pipe two (4) are simultaneously slidably sealed and provided with a cover plate (5), and the sliding direction of the cover plate (5) relative to the pig house (1) is aligned with the center line of the ventilation pipe one (3) and the center line of the ventilation pipe two (4). The center lines of the heat exchange pipes are parallel to a vertical plane defined by the center lines, and the ventilation pipe 1 (3) and the ventilation pipe 2 (4) can both be opposite to and communicate with the connecting through hole; the fan (6) is installed on the cover plate (5), the air outlet end of the fan (6) is communicated with the connecting through hole, and the air inlet end of the fan (6) is located outside the pig house (1); one end of the heat exchange pipe is sealed and fixed on the inner side of the roof of the pig house (1), the heat exchange pipe is opposite to and communicated with the ventilation pipe 1 (3), the inner wall of the heat exchange pipe is integrally formed with a heat exchange channel (70), and the heat exchange pipe is provided with an inlet (71) and an outlet (72) both communicated with the heat exchange channel (70), and the inlet (71) and the outlet (72) are both communicated with the hot water tank of the solar water heater (2).

2. A pig house ventilation device according to claim 1, characterized in that: The ventilation pipe 1 (3) is provided with an inverted T-shaped slide groove 1 (30) passing through its upper end wall and two opposite side walls, and the ventilation pipe 2 (4) is provided with an inverted T-shaped slide groove 2 (40) passing through its upper end wall and two opposite side walls. The cover plate (5) is a rectangular plate and its plate length direction is parallel to a vertical plane jointly defined by the center line of the ventilation pipe 1 (3) and the center line of the ventilation pipe 2 (4). The cover plate (5) is simultaneously slidably and tightly embedded in the inverted T-shaped slide groove 1 (30) and the inverted T-shaped slide groove 2 (40).

3. A pig house ventilation device according to claim 2, characterized in that: A baffle (50) is integrally formed at each end of the cover plate (5), and the length direction of the baffle (50) is the same as the width direction of the cover plate (5). The two baffles (50) can respectively abut against the outer wall of the ventilation pipe 1 (3) and the outer wall of the ventilation pipe 2 (4).

4. A pig house ventilation device according to claim 2, characterized in that: A plug hole (31) is horizontally provided on the outer side wall of the ventilation pipe (3) and passes through the side wall of the inverted T-shaped slide groove (30). A plurality of positioning holes (51) are provided on the long side wall of the cover plate (5). The plurality of positioning holes (51) are arranged in sequence along the length direction of the cover plate (5). One end of a positioning pin (8) can pass through the plug hole (31) and be inserted into one of the positioning holes (51).

5. A pig house ventilation device according to claim 2, characterized in that: It also includes a ventilation pipe three (9), which is located outside the pig house (1). The ventilation pipe three (9) can be located in the inverted T-shaped chute one (30) or the inverted T-shaped chute two (40). The ventilation pipe three (9) is arranged vertically and its lower end is fixed to the upper plate surface of the cover plate (5). The ventilation pipe three (9) is opposite to and connected to the connecting through hole. The fan (6) is tightly embedded in the ventilation pipe three (9).

6. A pig house ventilation device according to claim 5, characterized in that: It also includes an ultraviolet disinfection lamp (10), which is annular and coaxially fixed in the ventilation pipe three (9). The ultraviolet disinfection lamp (10) is located below the fan (6).

7. A pig house ventilation device according to claim 6, characterized in that: It also includes an electric heating wire (11), which is fixed in the ventilation pipe three (9) and is located below the ultraviolet disinfection lamp (10).

8. A pig house ventilation device according to claim 5, characterized in that: It also includes a rain cover (12), which is arranged vertically and has a closed upper end and an open lower end. The upper end of the ventilation pipe (9) is fixed to the inner wall of the closed end of the rain cover (12). The inner contour diameter of the rain cover (12) is larger than the outer diameter of the ventilation pipe (9). A plurality of air inlets (90) are uniformly opened on the side wall of the ventilation pipe (9). The plurality of air inlets (90) are all located on the inner side of the rain cover (12), and the air inlets (90) are located above the fan (6).

9. A pig house ventilation device according to claim 1, characterized in that: The inner side wall of the heat exchange tube is uniformly and integrally formed with a plurality of internally hollow heat exchange fins (73) in the circumferential direction, and the heat exchange channel (70) is communicated with the interior of the heat exchange fins (73).

Images