Efficient and energy-saving ventilation and purification mechanism for hog house

Abstract

The utility model relates to the field of ventilation systems, in particular to an efficient and energy-saving pig house ventilation and purification mechanism, a ceiling is arranged in a pig house, an airflow channel is arranged between the ceiling and a ceiling of the pig house, and an exhaust port is formed in the side wall of the pig house below the ceiling; an air inlet pipeline is arranged on the side wall of the pig house located above the ceiling, an air inlet distribution pipe is arranged in the pig house, and the upper end of the air inlet distribution pipe penetrates through the ceiling and is communicated with the airflow channel; a main air inlet pipe is fixedly installed at the bottom of the ceiling, an air inlet is formed in the top of the main air inlet pipe, the air inlet upwards penetrates through the ceiling and is communicated with the airflow channel, and a heat exchange pipe is fixedly installed between the main air inlet pipe and the air inlet distribution pipe. In summer, external fresh air does not flow through the heat exchange pipe and directly enters the hog house through the air inlet distribution pipe, so that waste gas carrying heat in the hog house is directly discharged without heat exchange with the fresh air, and the situation that heat is accumulated in the hog house and is not prone to heat dissipation is avoided.

Description

Technical Field

[0001] The utility model relates to the field of ventilation systems, in particular to a high-efficiency and energy-saving pig house ventilation and purification mechanism. Background Art

[0002] Pig farming is still the leading industry in my country's animal husbandry, and pork still occupies a dominant position in the residents' meat consumption structure. At present, pig farming has transitioned from traditional pig farming in natural environment conditions to modern farming that provides pigs with the most suitable growth environment according to seasonal changes.

[0003] The utility model patent with application number CN201821862907.9 discloses an energy-saving ventilation system for a pig house. The main body of the pig house includes a ceiling and a cover plate. A capacity space is formed between the ceiling and the cover plate. An airflow inlet is provided on the cover plate. An opening is provided on the ceiling. The opening is connected to the airflow duct. The inlet of the exhaust duct extends along the side wall of the main body of the pig house to the bottom of the main body of the pig house. The outlet of the exhaust duct passes through the ceiling and the cover plate and extends to the outside of the top of the cover plate. The exhaust gas discharged from the indoor pig house carries a certain amount of heat. The exhaust duct is set in the capacity space between the ceiling and the cover plate to provide heat for the airflow coming in through the airflow inlet on the cover plate to avoid waste of resources.

[0004] However, the energy-saving ventilation system of the above-mentioned pig house has the following defects: in the hot summer, the fresh air entering the pig house through the air inlet will also absorb the heat carried by the exhaust gas, which makes it difficult to dissipate heat inside the pig house, and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an efficient and energy-saving pig house ventilation and purification mechanism, which can prevent the fresh air entering the pig house in the hot summer from absorbing the heat carried by the exhaust gas, so as to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: an efficient and energy-saving pig house ventilation and purification mechanism, comprising a pig house, a ceiling is provided in the pig house, an air flow channel is provided between the ceiling and the ceiling of the pig house, and an exhaust port is provided on the side wall of the pig house below the ceiling; an air intake duct is provided on the side wall of the pig house above the ceiling, and a vertically extending air intake distribution pipe is provided in the pig house, a fresh air port is provided at the lower end of the air intake distribution pipe, and the upper end of the air intake distribution pipe passes through the ceiling; a main air intake pipe is fixedly installed at the bottom of the ceiling, an air intake port is provided at the top of the main air intake pipe, the air intake port passes upward through the ceiling and is connected with the air flow channel, and a heat exchange pipe is fixedly installed between the main air intake pipe and the air intake distribution pipe; an air intake regulating mechanism is provided in the air flow channel for guiding the fresh air entering through the air intake duct to the upper end of the air intake distribution pipe or to the air intake port.

[0007] As a preferred technical solution, the air intake regulating mechanism includes a shell fixedly mounted on the upper end of the air intake distribution pipe, the shell is in the shape of a hollow cylinder, the axis of the shell extends laterally, the bottom of the shell is provided with a connecting port connected to the upper end of the air intake distribution pipe, one end of the air intake pipe is fixedly mounted on one end surface of the shell and is connected to the inner cavity of the shell; a vent is provided on the peripheral wall of the shell, an annular plate for sealing the connecting port and the vent is provided in the shell, the annular plate is driven by a motor and rotates around its own axis, and an air outlet is provided on the side wall of the annular plate.

[0008] As a further improvement, an electric heating wire is provided in the air intake distribution pipe.

[0009] As a further improvement, a partition is fixedly installed in the air intake distribution pipe, and a heating channel with an opening at the lower end is provided between the partition and the inner wall of the air intake distribution pipe, one end of the heat exchange tube is connected to the upper end of the heating channel, and a plurality of guide plates arranged vertically evenly spaced are fixedly installed on the two horizontally opposite side walls of the heating channel, the guide plates located on different side walls of the heating channel are staggered up and down, and the electric heating wire is installed between two adjacent guide plates.

[0010] As a further improvement, the heat exchange tube is bent in an S shape.

[0011] After adopting the above technical solution, the beneficial effects of the utility model are:

[0012] (1) In the present application, in winter, the external cold air flows through the heat exchange tube to exchange heat with the exhaust gas, and then enters the pig house through the air intake distribution pipe; in summer, the external fresh air does not flow through the heat exchange tube and directly enters the pig house through the air intake distribution pipe, so that the exhaust gas carrying heat in the pig house is directly discharged without heat exchange with the fresh air, avoiding the accumulation of heat in the pig house and making it difficult to dissipate heat, and the structural design is more reasonable;

[0013] (2) In the present application, in winter, cold air flows through the heat exchange tube for preheating and then enters the heating channel. Multiple guide plates allow the cold air to be deflected in the heating channel, so that the air entering the pig house is heated more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of an existing gas distributor;

[0016] Figure 2 1 is a bottom view schematic diagram of a heat exchange tube according to an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the air intake distribution pipe of an embodiment of the utility model;

[0018] Figure 4 It is a left side schematic diagram of the shell of the embodiment of the utility model.

[0019] In the figure: 1-pig house; 2-ceiling; 3-ceiling; 4-air flow channel; 5-exhaust port; 6-exhaust fan; 7-intake duct; 8-air duct; 9-intake fan; 10-intake distribution pipe; 11-fresh air outlet; 12-main intake pipe; 13-intake port; 14-heat exchange pipe; 15-shell; 16-connecting port; 17-vent; 18-annular plate; 19-sealing strip; 20-motor; 21-air outlet; 22-partition; 23-vertical plate; 24-horizontal plate; 25-heating channel; 26-guide plate; 27-electric heating wire; 28-fixing sleeve. DETAILED DESCRIPTION

[0020] like Figures 1 to 4 As shown, the efficient and energy-saving pig house ventilation and purification mechanism comprises a pig house 1, wherein a ceiling 2 is provided in the pig house 1, and an air flow channel 4 is provided between the ceiling 2 and the ceiling 3 of the pig house 1. Exhaust ports 5 are respectively provided on the left and right side walls of the pig house 1 located below the ceiling 2, and the exhaust ports 5 are close to the bottom of the ceiling 2, through which the exhaust gas in the pig house 1 can be discharged. In order to improve the exhaust efficiency, an exhaust fan 6 is installed in the exhaust port 5.

[0021] Air intake ducts 7 are respectively arranged on the left and right side walls of the pig house 1 above the ceiling 2. The air intake ducts 7 run through the side walls of the pig house 1 horizontally. One end of the air intake duct 7 outside the pig house 1 is connected to the air intake fan 9 through the air duct 8, which can improve the air intake efficiency. A vertically extending air intake distribution pipe 10 is arranged in the pig house 1. Two groups of air intake distribution pipes 10 are arranged opposite to each other on the left and right sides along the width direction of the pig house 1, and the air intake distribution pipes 10 correspond to the air intake ducts 7 one by one. The air intake distribution pipes 10 are fixedly installed on the inner side of the corresponding side walls of the pig house 1 through a fixing frame. A fresh air outlet 11 is arranged at the lower end of the air intake distribution pipe 10, and the upper end of the air intake distribution pipe 10 passes through the ceiling 2. The main air intake pipe 12 is fixedly installed at the bottom of the ceiling 2 through a hanger. The main air intake pipe 12 is horizontally arranged and extends forward and backward along the length direction of the pig house 1. The top of the main air intake pipe 12 is provided with an air inlet 13 extending upward. Specifically, a plurality of air inlets 13 can be evenly spaced along the length direction of the main air intake pipe 12 to improve the efficiency of air entering the main air intake pipe 12. The air inlet 13 passes through the ceiling 2 upward and is connected to the air flow channel 4. A heat exchange pipe 14 is fixedly installed between the main air intake pipe 12 and each air intake distribution pipe 10. In order to improve the heat exchange efficiency, Figure 2 As shown, the heat exchange tube 14 is bent in an S shape and is close to the bottom of the ceiling 2. An air intake regulating mechanism is provided in the air flow channel 4 for guiding the fresh air entering through the air intake duct 7 to the upper end of the air intake distribution pipe 10 or to the air intake port 13.

[0022] like Figure 3 and Figure 4As shown, the air intake regulating mechanism includes a shell 15 fixedly mounted on the upper end of the air intake distribution pipe 10, the shell 15 is welded to the upper end of the air intake distribution pipe 10, the shell 15 is in the shape of a hollow cylinder, the axis of the shell 15 extends horizontally to the left and right, and the bottom of the shell 15 is provided with a connecting port 16 connected to the upper end of the air intake distribution pipe 10, and the corresponding air intake pipe 7 is located in the pig house 1. One end is fixedly mounted on one end surface of the shell 15 by screws and is connected to the inner cavity of the shell 15; the shell 15 is also provided with a vent hole 17 on the peripheral wall, and the vent hole 17 is specifically provided with two, and the two vent holes 17 are respectively arranged on the opposite sides of the shell 15, and the two vent holes 17 are distributed at ninety degrees with the connecting port 16, and the shell 15 is provided with a connecting port 16 for connecting the connecting port 16 to the pig house 10. 6 and the vent hole 17 are blocked by an annular plate 18, the outer diameter of the annular plate 18 matches the inner diameter of the housing 15. In order to improve the sealing performance of the annular plate 18, a plurality of sealing strips 19 are evenly spaced in the axial direction of the outer wall of the annular plate 18, and the sealing strips 19 extend along the axial direction of the annular plate 18; the annular plate 18 is driven by a motor 20 and rotates around its own axis. The motor 20 is installed at one end of the housing 15 away from the air intake pipe 7 by bolts, and the rotating shaft of the motor 20 extends to the inside of the housing 15. A coaxially arranged fixing sleeve 28 is fixedly connected to the annular plate 18 through a support plate, and the fixing sleeve 28 is fixedly installed on the rotating shaft of the motor 20 by bolts. An air outlet 21 is provided on the side wall of the annular plate 18, and the air outlet 21 corresponds to the vent hole 17 one by one.

[0023] Specifically, in winter, the annular plate 18 is driven to rotate by the motor 20, so that the two air outlets 21 on the annular plate 18 are rotated to overlap with the corresponding vents 17, and at the same time, the annular plate 18 blocks the connecting port 16; the external cold air enters the shell 15 through the air intake duct 7, and enters the air flow channel 4 through the air outlet 21 and the vent 17, and then flows through the air intake 13, the main air intake pipe 12, the heat exchange pipe 14 and the air intake distribution pipe 10 in sequence and enters the pig house 1 through the fresh air outlet 11. The waste gas carrying heat in the pig house 1 floats upward to the bottom of the ceiling 2 and is discharged through the exhaust port 5. When the external cold air flows through the heat exchange tube 14, the cold air in the heat exchange tube 14 exchanges heat with the waste gas floating to the bottom of the ceiling 2, and the cold air in the heat exchange tube 14 is preheated, thereby achieving the effect of energy saving and emission reduction.

[0024] Or in summer, the annular plate 18 is driven to rotate by the motor 20, so that an air outlet 21 on the annular plate 18 rotates to overlap with the connecting port 16, and at the same time the annular plate 18 blocks the two vents 17, such as Figure 4As shown; external fresh air enters the shell 15 through the air intake pipe 7, and enters the air intake distribution pipe 10 through the air outlet 21 and the connecting port 16 located at the bottom, and finally enters the pig house 1 through the fresh air outlet 11. When the external fresh air enters the pig house, it will not flow through the heat exchange tube 14, so that the exhaust gas carrying heat in the pig house 1 is directly discharged without heat exchange with the fresh air, avoiding the accumulation of heat in the pig house and making it difficult to dissipate heat.

[0025] like Figure 3 As shown, a partition 22 is fixedly installed in the air intake distribution pipe 10, and the partition 22 includes a vertical plate 23 and a horizontal plate 24. The vertical plate 23 and the horizontal plate 24 are welded between the front and rear side walls of the air intake distribution pipe 10, and one end of the horizontal plate 24 abuts the upper end of the vertical plate 23, and the other end abuts the side wall of the air intake distribution pipe 10 corresponding to the heat exchange tube 14. A heating channel 25 with an open lower end is provided between the partition 22 and the inner wall of the air intake distribution pipe 10, and one end of the heat exchange tube 14 is connected to the upper end of the heating channel 25. A plurality of guide plates 26 uniformly spaced vertically are respectively welded on the left and right opposite side walls of the heating channel 25. The guide plates 26 on the left and right side walls of the heating channel 25 are staggered up and down, and an electric heating wire 27 is installed between two adjacent guide plates 26.

[0026] Specifically, in summer, external fresh air enters the upper end of the air intake distribution pipe 10 through the connecting port 16, and directly passes downward through the inner cavity of the air intake distribution pipe 10 outside the heating channel 25 and is discharged through the fresh air port 11; in winter, cold air flows through the heat exchange tube 14 for preheating and then enters the heating channel 25, and is further heated by the electric heating wire 27, and finally the heated air is discharged through the fresh air port 11, and when the cold air flows through the heating channel 25, a plurality of guide plates 26 cause the cold air to be deflected in the heating channel 25, so that the air entering the pig house 1 is heated more fully.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Highly efficient and energy-saving pig house ventilation and purification mechanism, characterized by: It comprises a pig house, wherein a ceiling is provided in the pig house, an air flow channel is provided between the ceiling and the ceiling of the pig house, an exhaust port is provided on the side wall of the pig house below the ceiling; an air intake duct is provided on the side wall of the pig house above the ceiling, a vertically extending air intake distribution pipe is provided in the pig house, a fresh air port is provided at the lower end of the air intake distribution pipe, and the upper end of the air intake distribution pipe passes through the ceiling; a main air intake pipe is fixedly installed at the bottom of the ceiling, an air intake port is provided at the top of the main air intake pipe, the air intake port passes upward through the ceiling and is connected with the air flow channel, a heat exchange pipe is fixedly installed between the main air intake pipe and the air intake distribution pipe; an air intake regulating mechanism is provided in the air flow channel for guiding the fresh air entering through the air intake duct to the upper end of the air intake distribution pipe or to the air intake port.

2. The high-efficiency and energy-saving pig house ventilation and purification mechanism according to claim 1 is characterized in that: The air intake regulating mechanism includes a shell fixedly mounted on the upper end of the air intake distribution pipe, the shell is in the shape of a hollow cylinder, the axis of the shell extends laterally, a connecting port connected to the upper end of the air intake distribution pipe is provided at the bottom of the shell, one end of the air intake pipe is fixedly mounted on one end surface of the shell and is connected to the inner cavity of the shell; air vents are provided on the peripheral wall of the shell, an annular plate for sealing the connecting port and the air vents is provided in the shell, the annular plate is driven by a motor and rotates around its own axis, an air outlet is provided on the side wall of the annular plate.

3. The high-efficiency and energy-saving pig house ventilation and purification mechanism according to claim 1 is characterized in that: An electric heating wire is arranged in the air intake distribution pipe.

4. The high-efficiency and energy-saving pig house ventilation and purification mechanism according to claim 3 is characterized in that: A partition is fixedly installed in the air intake distribution pipe, and a heating channel with an opening at the lower end is provided between the partition and the inner wall of the air intake distribution pipe. One end of the heat exchange tube is connected to the upper end of the heating channel. A plurality of guide plates evenly spaced vertically are fixedly installed on the two horizontally opposite side walls of the heating channel. The guide plates located on different side walls of the heating channel are staggered up and down, and the electric heating wire is installed between two adjacent guide plates.

5. The high-efficiency and energy-saving pig house ventilation and purification mechanism according to claim 1 is characterized in that: The heat exchange tube is bent in an S shape.

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