Pig farm ventilation system convenient for waste heat recovery

Abstract

The utility model discloses a pig farm ventilation system convenient for waste heat recovery, which belongs to the technical field of livestock and poultry breeding facilities and comprises a breeding shed, a wind power input device is mounted on a first side of the breeding shed and comprises a shell, the shell is communicated with the breeding shed through an air inlet pipe, and an air chamber is arranged in the shell. A heating module is fixedly installed between the air chamber and the air inlet pipe in the shell, a first draught fan capable of inputting wind power into the air inlet pipe is installed in the air chamber, the first draught fan is used for inputting external air into the air inlet pipe, the external air is heated through the heating module and then input into the breeding shed, and an air outlet pipe is arranged on the second side wall of the breeding shed; the air outlet pipe is fixedly connected with a first air inlet of the heat exchanger, a first air outlet of the heat exchanger communicates with the outside, and a second air outlet of the heat exchanger communicates with the air chamber through a connecting pipe. According to the utility model, the waste heat in the breeding shed is fully utilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of livestock and poultry breeding facilities, and particularly relates to a pig farm ventilation system convenient for waste heat recovery. Background Technique

[0002] During the livestock and poultry breeding process, the heat in the livestock and poultry breeding shed (including the excess heat from ventilation and heating, the heat emitted by pigs themselves, and the heat generated by lamps) is usually not fully utilized. In particular, the wind discharged through the exhaust port and the air discharged through the manure passage carry a lot of heat and are wasted.

[0003] At present, the country strongly advocates energy conservation and emission reduction, and the waste heat recovery and utilization of livestock and poultry farms have also received great attention. The existing literature CN213984732U provides a pig breeding heat energy recovery and utilization system, including a first air box and a second air box. A plurality of heat exchange tubes arranged in parallel are rotatably and sealingly connected between the first air box and the second air box. One end of the first air box away from the heat exchange tubes is provided with an air inlet pipe, the top of the second air box is provided with a hot air pipe, a heater and a suction fan are arranged in the hot air pipe, one end of the hot air pipe away from the second air box is bent above the pig house, and a air distribution port is arranged at one end of the hot air pipe located above the pig house. The heat exchange tubes are arranged in the exhaust cavity under the pig manure leakage plate, and one end of the exhaust cavity corresponding to the first air box is provided with an exhaust pipe. This system recovers the waste heat in the exhaust gas discharged from the pig house, thereby saving the energy consumption when supplementing heat to the pig house. However, this solution still has the problem of insufficient waste heat utilization. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a pig farm ventilation system convenient for waste heat recovery, which is used to solve the problem of insufficient waste heat utilization in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a pig farm ventilation system convenient for waste heat recovery, including a breeding shed. A wind input device is installed on the first side of the breeding shed. The wind input device includes a housing, the housing is communicated with the breeding shed through an air inlet pipe, a wind chamber is arranged in the housing, a heating module is fixedly installed in the housing between the wind chamber and the air inlet pipe, a first fan capable of inputting wind into the air inlet pipe is installed in the wind chamber, and the first fan is used to input external wind into the air inlet pipe, heat it through the heating module and then input it into the breeding shed. An air outlet pipe is arranged on the second side wall of the breeding shed, the air outlet pipe is fixedly connected with a first air inlet of a heat exchanger, a first air outlet of the heat exchanger is communicated with the outside, and a second air outlet of the heat exchanger is communicated with the wind chamber through a connecting pipe.

[0007] Further, a feces leakage plate is fixedly installed in the breeding shed. The feces leakage plate is used to support the activities of livestock and poultry and can allow the excrement of livestock and poultry to leak to the lower part of the feces leakage plate. A heat exchange pipe is installed under the feces leakage plate. One end of the heat exchange pipe is communicated with the air chamber, and the other end of the heat exchange pipe is fixedly connected with a second fan. The second fan is used to input external air into the heat exchange pipe.

[0008] Further, a protection plate is fixedly installed in the breeding shed. The protection plate is arranged between the feces leakage plate and the heat exchange pipe.

[0009] Further, the protection plate is conical.

[0010] Further, a plurality of groups of wind input devices are installed side by side on the first side of the breeding shed.

[0011] Further, the air inlet pipe and the air outlet pipe are respectively arranged on the opposite side walls of the breeding shed.

[0012] Further, the air inlet pipe and the air outlet pipe correspond to each other one by one.

[0013] The beneficial effects are as follows: The utility model not only realizes the waste heat recovery and utilization of the air discharged from the main ventilation openings of the breeding shed, but also realizes the heat recovery and utilization of the feces accumulation area (including the lower part of the feces leakage plate), can more fully recover and utilize the waste heat of the livestock and poultry breeding shed, and can significantly reduce the energy consumption and cost required for heating the breeding shed. Description of the Drawings

[0014] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the following drawings are provided for the description of the utility model:

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0016] The marks in the drawings are as follows: breeding shed 1, housing 2, air inlet pipe 201, air chamber 202, heating module 203, first fan 204, air outlet pipe 3, heat exchanger 4, connecting pipe 401, feces leakage plate 5, heat exchange pipe 501, second fan 6, protection plate 7. Detailed Embodiments

[0017] As Figure 1As shown in the figure, a pig farm ventilation system facilitating waste heat recovery provided by the utility model includes: a breeding shed 1. A plurality of wind input devices are installed side by side on the first side of the breeding shed 1. The wind input device includes a housing 2. The housing 2 is communicated with the breeding shed 1 through an air inlet pipe 201. A wind chamber 202 is arranged in the housing 2. A heating module 203 is fixedly installed in the housing 2 between the wind chamber 202 and the air inlet pipe 201. A first fan 204 capable of inputting wind into the air inlet pipe 201 is installed in the wind chamber 202. The first fan 204 is used to input external wind into the air inlet pipe 201, heat it through the heating module 203 and then input it into the breeding shed 1. An air outlet pipe 3 is arranged on the second side wall of the breeding shed 1. The air outlet pipe 3 is fixedly connected with the first air inlet of a heat exchanger 4. The first air outlet of the heat exchanger 4 is communicated with the outside. The second air outlet of the heat exchanger 4 is communicated with the wind chamber 202 through a connecting pipe 401.

[0018] In this solution, the heat exchanger 4 is provided with a first air inlet and a second air inlet. The first air inlet is connected with the air outlet pipe 3, and the second air inlet is communicated with the outside. A fan for inputting external air into the second air inlet is connected to the second air inlet. The heat exchanger 4 is provided with a first air outlet and a second air outlet. The first air outlet is communicated with the outside, and the second air outlet is communicated with the wind chamber 202 through a connecting pipe 401. The first fan 204 is used to introduce the wind outside the breeding shed 1 into the wind chamber 202, heat it through the heating module 203 and then input it into the breeding shed 1 through the air inlet pipe 201. The wind discharged from the breeding shed 1 is input into the heat exchanger 4 through the air outlet pipe 3 and discharged to the outside through the first air outlet. The natural wind outside is input into the heat exchanger 4 through the second air inlet, and after heat exchange, it is input into the wind chamber 202 through the connecting pipe 401 to realize the recovery and utilization of the waste heat of the gas in the breeding shed 1 and reduce the energy consumption of the heating module 203.

[0019] In this solution, a feces leakage plate 5 is fixedly installed in the breeding shed 1. The feces leakage plate 5 is used to support the activities of livestock and poultry and can make the excrement of livestock and poultry leak to the lower part of the feces leakage plate 5. A heat exchange pipe 501 is installed under the feces leakage plate 5. One end of the heat exchange pipe 501 is communicated with the wind chamber 202, and the other end of the heat exchange pipe 501 is fixedly connected with a second fan 6. The other end of the heat exchange pipe 501 can introduce natural wind.

[0020] In this solution, the heat in the space under the feces leakage plate 5 exchanges heat with the gas in the heat exchange pipe 401, so that the natural wind in the heat exchange pipe 401 is heated and then enters the wind chamber 202, thus further realizing the recovery and utilization of the waste heat in the area where livestock and poultry excrement accumulates. Among them, the heat in the space under the feces leakage plate 5 includes the heat generated by the heating of the ventilation system, as well as the heat generated by the feces and urine themselves and the accumulation of feces and urine.

[0021] In an embodiment of the present utility model, a protection plate 7 is fixedly installed in the breeding shed 1. The protection plate 7 is arranged between the feces leakage plate 5 and the heat exchange tube 501 to prevent livestock and poultry excrement from adhering to the heat exchange tube 501. More importantly, it can guide the gas in the feces accumulation area to contact the heat exchange tube 501 for a long time, which is beneficial to further improving the waste heat utilization effect.

[0022] In an embodiment of the present utility model, the cross section of the protection plate 7 is conical, so that the excrement flowing down from the feces leakage plate 5 can slide down along the protection plate 7, facilitating cleaning.

[0023] The present utility model not only realizes the waste heat recovery and utilization of the air discharged from the main ventilation openings (the air outlets of the positive pressure or negative pressure ventilation system) of the breeding shed, but also realizes the heat recovery and utilization of the feces accumulation area (including the area under the feces leakage plate). It can more fully recover and utilize the waste heat of the livestock and poultry breeding shed, and can significantly reduce the energy consumption and cost required for heating the breeding shed. In addition, the structure of the present utility model is compact and simple, which is convenient for popularization and application.

Claims

1. A pig farm ventilation system for waste heat recovery, comprising a breeding shed, characterized in that: A wind input device is installed on the first side of the breeding shed, and the wind input device includes a shell, and the shell is connected to the breeding shed through an air inlet pipe. A wind chamber is provided in the shell, and a heating module is fixedly installed in the shell between the wind chamber and the air inlet pipe. A first fan capable of inputting wind into the air inlet pipe is installed in the wind chamber, and the first fan is used to input external wind into the air inlet pipe, which is heated by the heating module and then input into the breeding shed. An air outlet pipe is provided on the second side wall of the breeding shed, and the air outlet pipe is fixedly connected to the first air inlet of the heat exchanger, and the first air outlet of the heat exchanger is connected to the outside, and the second air outlet of the heat exchanger is connected to the wind chamber through a connecting pipe.

2. The pig farm ventilation system for waste heat recovery according to claim 1 is characterized in that: A slatted floor is fixedly installed in the breeding shed. The slatted floor is used to support the activities of livestock and poultry and enable livestock and poultry excrement to leak under the slatted floor. A heat exchange pipe is installed under the slatted floor. One end of the heat exchange pipe is connected to the air chamber. The other end of the heat exchange pipe is fixedly connected to a second fan. The second fan is used to input outside air into the heat exchange pipe.

3. The pig farm ventilation system for waste heat recovery according to claim 2 is characterized in that: A protective plate is fixedly installed in the breeding shed, and the protective plate is arranged between the manure-slatted plate and the heat exchange pipe.

4. The pig farm ventilation system for waste heat recovery according to claim 3 is characterized in that: The protection plate is tapered.

5. The pig farm ventilation system for waste heat recovery according to claim 4 is characterized in that: A plurality of wind input devices are installed side by side on the first side of the breeding shed.

6. The pig farm ventilation system for waste heat recovery according to claim 5 is characterized in that: The air inlet pipe and the air outlet pipe are respectively arranged on two opposite side walls of the breeding shed.

7. The pig farm ventilation system for waste heat recovery according to claim 6 is characterized in that: The air inlet pipes correspond to the air outlet pipes one by one.

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