Efficient heat exchange equipment for livestock farm

Abstract

The invention relates to efficient heat exchange equipment for a livestock farm, and belongs to the technical field of breeding facilities and environment control. A heat exchange main body is fixed between a roof and a suspended ceiling in an embedded mode and provided with an air inlet channel and an air exhaust channel which are designed according to the shape of the roof in a matched mode; a heat exchange partition plate used for separating the air inlet channel and the air exhaust channel is arranged between the air inlet channel and the air exhaust channel. The air inlet assembly is connected with the inlet end of the air inlet channel and comprises a filter and an air inlet fan which are sequentially connected, the filter is used for filtering air impurities, and the outlet end of the air inlet channel is located below the suspended ceiling; the exhaust assembly comprises a gas collecting hood and an exhaust fan, the gas collecting hood is located below the suspended ceiling and fixedly communicates with the inlet end of the exhaust channel, and the exhaust fan is installed on the roof and communicates with the outlet end of the exhaust channel; and the flowing direction of airflow in the air inlet channel is opposite to that of airflow in the air exhaust channel, so that the heat exchange device can achieve the effects of deep integration with a building structure, high efficiency, energy conservation, low cost, low maintenance and suitability for multiple scenes.

Description

Technical Field

[0001] This application relates to the technical field of aquaculture facilities and environmental control, and in particular to a high-efficiency heat exchange device for aquaculture farms. Background Technology

[0002] In large-scale farms, environmental control is crucial for ensuring the healthy growth of agricultural crops and livestock, and for improving farming efficiency. Maintaining suitable temperature, humidity, and air quality requires continuous ventilation to introduce fresh air and expel stale air. However, ventilation can lead to significant energy loss during winter heating or summer cooling, substantially increasing farming costs.

[0003] Currently, commonly used heat exchange devices in aquaculture farms, such as independent plate, tube, stationary fin, rotary, or nanofilm heat exchangers, all suffer from the following prominent problems: Cost and space conflict: The equipment is expensive, requires additional breeding space, has poor compatibility with the building structure of the breeding farm, and cannot utilize the idle space between the roof and the ceiling; Insufficient heat exchange efficiency: The structure is compact and the space is narrow, the heat exchange path is short (the finned path is short), it is difficult to form a large temperature difference heat exchange, and it is impossible to fully exchange the air enthalpy value, resulting in low heat exchange efficiency. Operation and maintenance challenges: High wind resistance leads to high energy consumption and noise, internal blockage is easy to occur, frequent cleaning or replacement of parts is required, and it is prone to damage when there are moving parts, resulting in high maintenance costs and short lifespan. Application limitations: Existing heat exchangers are mostly designed for large-scale centralized air conditioning systems, and are rarely used in ventilation heat recovery in ordinary aquaculture, agriculture and civil buildings, and lack comprehensive experimental data to support their application. Supporting facilities and energy consumption issues: Rotary and nano-thin film heat exchangers require large auxiliary power and many supporting facilities, which further increases operating costs and makes them difficult to popularize in small and medium-sized farms. Summary of the Invention

[0004] In order to develop a heat exchange device that can be deeply integrated with the building structure, is highly efficient and energy-saving, low-cost, low-maintenance, and applicable to multiple scenarios, this application provides a high-efficiency heat exchange equipment for aquaculture farms.

[0005] The high-efficiency heat exchange equipment for aquaculture farm provided in this application adopts the following technical solution: A high-efficiency heat exchange device for aquaculture farm includes: The heat exchanger body is embedded and fixed between the roof and the ceiling, and is provided with an air inlet channel and an air outlet channel. A heat exchange baffle is provided between the air inlet channel and the air outlet channel to separate the air inlet channel and the air outlet channel. The air inlet channel and the air outlet channel are designed to fit the shape of the roof. An air intake assembly, installed on the roof, includes a filter for filtering air impurities and an air intake fan connected in sequence. The air intake fan is connected to the inlet end of the air intake duct, and the air intake duct has multiple outlet ends, all located below the ceiling. An exhaust assembly includes a gas collection hood and an exhaust fan. The gas collection hood is located below the ceiling and is fixedly connected to the inlet end of the exhaust duct. The exhaust fan is installed on the roof and is connected to the outlet end of the exhaust duct. The airflow direction in the air intake channel is opposite to the airflow direction in the air exhaust channel.

[0006] Optionally, when the roof is a gable roof, the heat exchange body includes an air inlet channel and an air outlet channel with the same right-angled triangular cross-section. The overlapping right-angled side between the air inlet channel and the air outlet channel is a heat exchange baffle, which is a corrugated plate with high thermal conductivity.

[0007] Optionally, when the roof is flat, the heat exchange body includes an air inlet channel and an air outlet channel that divide the roof into an air inlet channel and an air outlet channel with a rectangular cross-section. The overlapping side between the air inlet channel and the air outlet channel is a heat exchange baffle, which is a corrugated plate with a high thermal conductivity.

[0008] Optionally, when the roof is flat, the heat exchange body includes an air inlet channel and an air outlet channel that divide the roof into an air inlet channel and an air outlet channel with a right-angled triangular cross-section. The overlapping hypotenuse between the air inlet channel and the air outlet channel is a heat exchange baffle, which is a corrugated plate with a high thermal conductivity.

[0009] Optionally, the heat exchange body includes an inner air inlet pipe and an outer air outlet pipe. The inner air inlet pipe is located inside the outer air outlet pipe and forms an annular exhaust channel with the outer air outlet pipe. The interior of the inner air inlet pipe is an air inlet channel. The inner air inlet pipe is a heat exchange baffle and is made of a pipe with a high thermal conductivity.

[0010] Optionally, the wall of the air inlet duct is corrugated, and the cross-section of the air inlet duct is circular or polygonal.

[0011] Optionally, a polyurethane foam insulation layer is provided on the outside of the roof, and the insulation layer covers the roof and the outer sides of the slopes on both sides.

[0012] Optionally, the outer wall of the exhaust duct is wrapped with a rock wool insulation layer.

[0013] Optionally, the inlet end of the exhaust duct includes a first branch and a second branch. The first branch is connected to the air collection hood, and the second branch is connected to a polluted air collection duct. The other end of the polluted air collection duct opposite to the second branch is connected to a dust collection pipe for gravity settling of dust. The dust collection pipe is located at the bottom of the roof and its inlet end is used to allow airflow from the bottom of the room to flow in.

[0014] Optionally, the heat exchange body is provided in several groups. Different areas of the room have different temperatures, and the same temperature corresponds to the same group of heat exchange bodies. The heat exchange order of the corresponding heat exchange bodies is arranged from high to low according to the temperature of different areas.

[0015] In summary, this application includes at least one of the following beneficial technical effects of high-efficiency heat exchange equipment for aquaculture farms: This invention aims to address the problems of high cost, large space occupation, low heat exchange efficiency, high wind resistance, easy clogging, difficult maintenance, poor building compatibility, and limited application scenarios in existing heat exchange devices for livestock farms and civil buildings. It provides a long-tube high-efficiency heat exchange device utilizing the space between the roof and ceiling of a livestock farm. Through embedded installation, multi-form structural design, and long-path heat exchange, it achieves the goals of improving heat exchange efficiency, saving space, reducing investment and operating costs, and extending service life. It also extends to the field of waste heat recovery in civil building ventilation. Using temperature as the distinguishing factor for the heat exchange sequence of different zones, it achieves a sequence where high-temperature zones exchange heat first, followed by low-temperature zones. This allows for the full absorption or release of air enthalpy, achieving high-efficiency heat exchange under greater temperature differences, equivalent to the effect of multiple traditional heat exchangers connected in series. (See attached figures.) Figure 1 This is a schematic diagram of the overall structure of the heat exchanger body in Embodiment 1 of this application.

[0016] Figure 2 This is a schematic diagram of the heat exchange body on the roof in Embodiment 1 of this application.

[0017] Figure 3 This is a schematic diagram showing the connection between the heat exchanger body, the air intake assembly, and the exhaust assembly in Embodiment 1 of this application.

[0018] Figure 4 This is a schematic diagram of the overall structure of the heat exchanger body in Embodiment 2 of this application.

[0019] Figure 5 This is a schematic diagram of the overall structure of the heat exchanger body in Embodiment 3 of this application.

[0020] Figure 6 This is a schematic diagram of the first overall structure of the heat exchanger body in Embodiment 4 of this application.

[0021] Figure 7 This is a schematic diagram of the second overall structure of the heat exchange body in Embodiment 4 of this application.

[0022] In the diagram: 1. Heat exchanger body; 11. Inner air inlet pipe; 12. Outer air outlet pipe; 2. Inlet air passage; 3. Exhaust air passage; 4. Heat exchanger baffle; 5. Inlet air assembly; 51. Filter; 52. Inlet air fan; 6. Exhaust air assembly; 7. Insulation layer; 8. Roof; 9. Ceiling. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0024] Example 1 Embodiment 1 of this application discloses a high-efficiency heat exchange device for aquaculture farms. (Refer to...) Figure 1-3 ,include: The heat exchanger body 1 is embedded and fixed between the roof 8 and the ceiling 9, and is provided with an air inlet channel 2 and an air outlet channel 3. A heat exchange baffle 4 is provided between the air inlet channel 2 and the air outlet channel 3 to separate the air inlet channel 2 and the air outlet channel 3. The air inlet channel 2 and the air outlet channel 3 are designed to fit the shape of the roof 8.

[0025] The air intake assembly 5 is installed on the roof 8 and includes a filter 51 for filtering air impurities and an air intake fan 52 connected in sequence. The air intake fan 52 is connected to the inlet end of the air intake duct 2 to draw fresh air into the room. The air intake duct 2 has multiple outlets, all located below the ceiling 9.

[0026] The exhaust assembly 6 includes a gas collection hood and an exhaust fan. The gas collection hood is located below the ceiling 9 and is fixedly connected to the inlet end of the exhaust duct 3. The exhaust fan is installed on the roof 8 and is connected to the outlet end of the exhaust duct 3 to draw out the stale air from the room and discharge it to the outside.

[0027] Fresh air from outside first passes through filter 51 to remove dust, microorganisms and other impurities, and then enters the air intake duct 2 through the air intake fan. The air inside the house is concentrated and flows into the exhaust duct 3 through the air collection hood. The heat exchange baffle 4 enables heat exchange between the air intake duct 2 and the exhaust duct 3, thereby increasing the temperature of the fresh air entering the house and decreasing the temperature of the stale air exiting the house.

[0028] To further extend the heat exchange time, the airflow direction in the air intake duct 2 is opposite to the airflow direction in the exhaust duct 3, thus prolonging the exchange time between the cooler fresh air and the indoor hot air as it flows through the air intake duct 2.

[0029] To further reduce heat loss, a polyurethane foam insulation layer 7 is installed on the outside of the roof 8. The insulation layer 7 covers the roof 8 and the outer sides of the slopes on both sides, and insulates the area above the entire ceiling 9 to reduce heat loss and improve the heat conversion efficiency of fresh air.

[0030] To ensure more complete removal of stale air from the room, the inlet of exhaust duct 3 includes a first branch and a second branch. The first branch connects to a dust collection hood and is used to draw air from the upper part of the room. The second branch connects to a stale air collection duct, the other end of which connects to a dust collection pipe for gravity settling of dust. The dust collection pipe is located at the bottom of the room. Air at the bottom of the room can be drawn into the second branch from the inlet of the dust collection pipe, and after gravity settling of dust, it enters the second branch and then the interior of exhaust duct 3. This prevents blockage in exhaust duct 3 while simultaneously drawing in and replacing air from the bottom of the room, resulting in more comprehensive air exchange.

[0031] Because the air is most polluted and hottest in areas with the most animals in a farm, while the air temperature in other areas is slightly lower, a large farm can install multiple sets of heat exchange units 1 at the same time. The farm can be divided into zones according to different temperatures, with the same set of heat exchange units 1 corresponding to the same temperature. The heat exchange order of the heat exchange units 1 is arranged from high to low temperature, with the high-temperature zone being heat exchanged first and the low-temperature zone being heat exchanged later. This forms a multi-segment temperature zone heat exchange, which can fully absorb or release the air enthalpy and achieve efficient heat exchange under a larger temperature difference, equivalent to the effect of multiple traditional heat exchangers connected in series.

[0032] When the roof 8 is a double-sloped gable roof 8, based on the spatial shape between the roof 8 and the ceiling 9, the heat exchange body 1 includes an air inlet channel 2 and an air outlet channel 3 with the same right-angled triangular cross-section. The hypotenuses of the air inlet channel 2 and the air outlet channel 3 correspond to the double slope of the roof 8. The overlapping right-angled side between the air inlet channel 2 and the air outlet channel 3 is the heat exchange baffle 4. The heat exchange baffle 4 is a corrugated plate with a high thermal conductivity. The corrugated design can increase the heat exchange area, thereby improving the heat exchange efficiency.

[0033] Example 1 of this embodiment uses a double-sloped gable roof 8 with a length of 80 meters, a ceiling height of 2.5 meters, and a distance of 1.2 meters between the roof 8 and the ceiling 9 as an example of an egg-laying chicken farm: The heat exchange device is embedded in the roof 8 and the ceiling 9 using a triangular structure.

[0034] Heat exchanger body 1: triangular structure, with sloping sides forming air inlet channel 2 (1.0 meter wide, 0.8 meter high) and air outlet channel 3 (1.0 meter wide, 0.8 meter high). The middle partition plate is made of 1 mm thick aluminum sheet (i.e., heat exchange partition plate 4), processed into a corrugated shape with a wave height of 8 cm and a wavelength of 25 cm to increase the heat exchange surface area.

[0035] Insulation layer 7: The outside of the triangular structure is wrapped with polyurethane foam insulation layer 7, which covers the roof 8 and the outside of the two slopes to reduce heat exchange with the outside. Filter 51: Includes a pre-filter and a medium-efficiency filter, installed at the inlet end of the air intake duct 2 (outer side of the gable wall at one end of the farm building). Air intake assembly 5 and exhaust assembly 6: An air intake fan is installed at the inlet end of the air intake channel 2, and multiple sets of air intake branch pipes (evenly distributed along the length of the building) are connected to the outlet end of the air intake channel 2. Adjustable air outlets are set at the ends of the branch pipes, corresponding to the feeding cages in the chicken house; multiple air collection hoods are installed at the inlet end of the exhaust channel 3 (located in the area where polluted air gathers at the top of the chicken house), and an exhaust fan is connected to the outlet end (outside the gable wall at the other end of the building).

[0036] Operating parameters: The flow rate of fresh air in the air inlet channel 2 is controlled at 1.5 m / s, and the flow rate of polluted air in the exhaust channel 3 is controlled at 1.2 m / s. The total length of the channel is 80 meters, and the heat exchange path covers the entire chicken house. Operational results: In winter, the exhaust air temperature inside the building is 18℃, and the temperature of fresh air rises from -5℃ to 15℃ after heat exchange, reducing the load on the heating equipment by 45%; in summer, the exhaust air temperature inside the building is 22℃ (after evaporative cooling), and the temperature of fresh air drops from 38℃ to 24℃ after heat exchange, reducing the load on the cooling equipment by 45%; the equipment operates at a noise level of 45 decibels, with no blockages, and requires no maintenance after 12 months of continuous operation.

[0037] The implementation principle of the high-efficiency heat exchange equipment for a farm in Embodiment 1 of this application is as follows: The heat exchange main body 1 is constructed by fully utilizing the space between the roof 8 and the ceiling 9 according to the shape of the roof 8. Fresh air is guided into the air inlet channel 2 through the air inlet component 5. The exhaust component 6 and the exhaust channel 3 are distributed to fully extract the stale air from the room into the exhaust channel 3, and gravity settles the dust to the outside of the exhaust channel 3 to prevent blockage. The gas in the air inlet channel 2 and the exhaust channel 3 achieves heat exchange through the heat exchange baffle 4. Heat loss is prevented through the insulation layer 7, thereby increasing the temperature of the fresh air entering the room. Heat exchange begins sequentially from the high-temperature area to the low-temperature area, further improving the heat exchange effect. Overall, this application achieves the goals of improving heat exchange efficiency, saving space, reducing investment and operating costs, and extending service life through embedded installation, multi-form structural design, and long-path heat exchange. It also extends to the field of waste heat recovery in civil building ventilation.

[0038] Example 2 The difference between Embodiment 2 and Embodiment 1 of this application is that: (Refer to...) Figure 4 The heat exchange body 1 includes an air inlet channel 2 and an air outlet channel 3 that divide the roof 8 into an air inlet channel 2 and an air outlet channel 3 with a rectangular cross-section. The overlapping side between the air inlet channel 2 and the air outlet channel 3 is a heat exchange baffle 4, which is a corrugated plate with a high thermal conductivity.

[0039] In this embodiment 2, the heat exchange body 1 is designed with the flat roof of the farm as the background, which is more in line with the architectural structure of the flat roof farm.

[0040] Example 3 The difference between Embodiment 3 and Embodiment 2 of this application is that: (Refer to...) Figure 5 The heat exchanger body 1 includes an air inlet channel 2 and an air outlet channel 3 that divide the roof 8 into an air inlet channel 2 and an air outlet channel 3 with right-angled triangular cross sections. The overlapping hypotenuse between the air inlet channel 2 and the air outlet channel 3 is a heat exchange baffle 4, which is a corrugated plate with a high thermal conductivity.

[0041] This embodiment 3 is applied to a farm with a flat roof 8, just like embodiment 2. However, the heat exchange area of ​​embodiment 3 is larger and the heat exchange efficiency is higher than that of embodiment 2.

[0042] Example 4 The difference between Embodiment 4 of this application and Embodiments 2 and 3 is that: (Refer to...) Figure 6-7 The heat exchanger body 1 includes an inner air inlet pipe 11 and an outer air outlet pipe 12. The inner air inlet pipe 11 is located inside the outer air outlet pipe 12 and forms an annular exhaust channel 3 between them. The inner air inlet pipe 11 has an air inlet channel 2 inside. The inner air inlet pipe 11 is a heat exchange baffle 4 and is made of a pipe with a high thermal conductivity.

[0043] The wall of the air inlet inner pipe 11 is corrugated, and the cross-section of the air inlet inner pipe 11 is circular or polygonal to further improve heat exchange efficiency, such as... Figure 6 As shown, the cross-section of the air inlet duct 11 is hexagonal, which can increase the diameter of the air inlet duct to accommodate more fresh air. The shape of the air inlet duct 11 can be adjusted according to the actual situation to suit different needs.

[0044] The outer wall of the exhaust duct 12 is wrapped with a rock wool insulation layer 7 to prevent heat loss.

[0045] Compared to Examples 2 and 3, Example 4 has a longer heat exchange path, a larger heat exchange area, and can more flexibly adjust the number and location of pipelines according to different temperature zones, resulting in greater flexibility, a wider range of applications, and more comprehensive heat exchange.

[0046] Example 4 of this application uses a pig farm with a length of 60 meters and a flat roof of 8 as an example: The heat exchange device adopts a coaxial tube embedded tube structure and is embedded between the roof 8 (below the insulation layer 7) and the ceiling 9; Heat exchanger body 1: A 300mm diameter PVC outer tube is used as the outer channel, and an inner tube is a 150mm diameter aluminum tube, which is processed into a diamond structure (diamond side length 5cm, protrusion height 3cm). The annular channel between the outer tube and the inner tube is the air inlet channel 2, and the inside of the inner tube is the air outlet channel 3. Along the length of the building, a set of coaxial tubes is set every 10 meters, with a total of 6 sets connected in series to form a heat exchange path with a total length of 60 meters. Insulation layer 7: A 5cm thick rock wool insulation layer 7 is wrapped around the outside of the outer pipe to prevent heat exchange with the roof 8 and the external environment; The inlet end of the air inlet duct 2 is connected to the filter 51 and the air inlet fan 52, and the outlet end extends to each feeding unit of the pig house through multiple sets of air supply branch pipes. The inlet end of exhaust duct 3 is connected to the dirty air collection duct at the bottom of the pigsty (to collect dust by gravity settling), and the outlet end is connected to the exhaust fan; Operational results: In winter, the exhaust air temperature inside the building is 20℃, and the fresh air is preheated from 0℃ to 16℃, reducing heating energy consumption by 48%; in summer, the exhaust air temperature inside the building is 24℃, and the fresh air is precooled from 38℃ to 26℃, reducing air conditioning operating time by 45%; there is no dust blockage in the coaxial tube channel, the air resistance is low, and the fan operating energy consumption is reduced by 35% compared with traditional finned heat exchangers. The equipment is expected to have a service life of up to 15 years.

[0047] Beneficial effects In conjunction with embodiments 1-4 of this application, compared with the prior art, the present invention has the following significant beneficial effects: 1. Maximizing space utilization and low cost: By utilizing the unused space between the roof 8 and the suspended ceiling 9 for embedded installation, no additional space for breeding functions is required, increasing space utilization by more than 30%. Eliminating the equipment purchase and installation costs of traditional independent heat exchangers, and utilizing the building structure itself as a heat exchange channel, equipment investment costs are reduced by 40%-60%; The concealed installation design avoids exposing the equipment, enhances the overall aesthetics of the farm, and reduces the damage to the equipment caused by the external environment.

[0048] 2. High-efficiency heat exchange and energy saving: By combining the heat exchange path along the entire length of the building (50-100 meters) with corrugated / diamond-shaped partition plates, the heat exchange area is increased by 3-5 times compared to traditional plate heat exchangers, the heat exchange time is extended, multi-temperature zone gradient heat exchange is achieved, the temperature difference between inlet and outlet air can be reduced to 3-6℃, and energy loss is reduced by 50%-80%. In winter, the waste heat of polluted air is used to preheat fresh air, and in summer, the cold energy of polluted air is used to precool fresh air, reducing the operating load of air conditioning and heating equipment and saving electricity by 25%-60%. At the same time, waste heat is fully recovered, which meets the requirements of energy conservation and emission reduction.

[0049] 3. Low power consumption, durable and easy to maintain: The passage has a large internal space and low wind resistance (the wind resistance coefficient is reduced by 30%-60%), reducing fan energy consumption by 20%-50% and significantly lowering operating noise levels, thus improving the aquaculture environment. With no moving parts and less prone to clogging, it eliminates the need for frequent cleaning or replacement of components, achieving "maintenance-free" operation and extending the equipment's lifespan to 10-20 years (compared to only 3-5 years for traditional heat exchangers), resulting in virtually zero maintenance costs.

[0050] 4. Multi-scenario adaptation and promotional value: The device's shape can be flexibly adjusted (triangular, directional structure, coaxial tube embedded tube, etc.) to adapt to farms with different structures (double-sloped roof, single-sloped roof, flat roof, etc.), and is suitable for various breeding scenarios such as poultry and livestock. Breaking through the application limitations of traditional heat exchangers, it can be directly applied to ventilation heat recovery in ordinary agricultural buildings (such as greenhouses) and civil buildings (such as residences and small commercial buildings), solving the problems of high cost and low heat exchange efficiency of existing fresh air exchangers, and providing a low-cost solution for building waste heat recovery.

[0051] 5. Improved air quality: Fresh air undergoes multi-stage filtration to effectively remove dust, allergens, microorganisms, and other pollutants from the air, while polluted air is promptly discharged. This reduces the concentration of dust in the shed by 40%-70% and the concentration of harmful gases such as ammonia by more than 35%, significantly improving the living environment for farmed animals and reducing the incidence of diseases.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency heat exchange device for aquaculture farms, characterized in that, The application relates to a heat exchange main body (1) embeddedly fixed between a roof (8) and a ceiling (9) and provided with an air inlet channel (2) and an air outlet channel (3), wherein a heat exchange partition plate (4) is arranged between the air inlet channel (2) and the air outlet channel (3) and used for separating the air inlet channel (2) and the air outlet channel (3), and the air inlet channel (2) and the air outlet channel (3) are designed according to the shape of the roof (8). An air inlet assembly (5) is installed on the roof (8) and comprises a filter (51) used for filtering air impurities and an air inlet fan (52) connected in sequence, the air inlet fan (52) is connected with an inlet end of the air inlet channel (2), and a plurality of outlet ends of the air inlet channel (2) are all located below the ceiling (9). An air outlet assembly (6) comprises a gas collecting cover and an air outlet fan, the gas collecting cover is located below the ceiling (9) and is fixed in communication with an inlet end of the air outlet channel (3), and the air outlet fan is installed on the roof (8) and is in communication with an outlet end of the air outlet channel (3). The air flow direction in the air inlet channel (2) is opposite to the air flow direction of the air outlet channel (3). When the roof (8) is a double-slope hipped roof (8), the heat exchange main body (1) comprises the air inlet channel (2) and the air outlet channel (3) with the same right-angled triangular cross section, the coincident right-angled side between the air inlet channel (2) and the air outlet channel (3) is the heat exchange partition plate (4), and the heat exchange partition plate (4) is a wave-shaped plate with high thermal conductivity.

2. The high-efficiency heat exchange device for a farm according to claim 1, characterized in that: When the roof (8) is a flat roof, the heat exchange main body (1) comprises the air inlet channel (2) and the air outlet channel (3) with the rectangular cross section, the coincident side between the air inlet channel (2) and the air outlet channel (3) is the heat exchange partition plate (4), and the heat exchange partition plate (4) is a wave-shaped plate with high thermal conductivity.

3. The high efficiency heat exchanger for a farm as claimed in claim 1, wherein: When the roof (8) is a flat roof, the heat exchange main body (1) comprises the air inlet channel (2) and the air outlet channel (3) with the right-angled triangular cross section, the coincident oblique side between the air inlet channel (2) and the air outlet channel (3) is the heat exchange partition plate (4), and the heat exchange partition plate (4) is a wave-shaped plate with high thermal conductivity.

4. The high efficiency heat exchanger for a farm as claimed in claim 1, wherein: The heat exchange main body (1) comprises an air inlet inner pipe (11) and an air outlet outer pipe (12), the air inlet inner pipe (11) is located inside the air outlet outer pipe (12) and forms the annular air outlet channel (3) with the air outlet outer pipe (12), the air inlet inner pipe (11) is the heat exchange partition plate (4) and is a pipe material with high thermal conductivity.

5. The farm efficient heat exchanger device according to claim 1, wherein: The pipe wall of the air inlet inner pipe (11) is corrugated, and the cross section of the air inlet inner pipe (11) is circular or polygonal.

6. The farm efficient heat exchanger apparatus according to claim 5, wherein: A polyurethane foam heat preservation layer (7) is arranged outside the roof (8), and the heat preservation layer (7) covers the outside of the roof (8) and the two sides of the slope.

7. The farm efficient heat exchanger of claim 1, wherein: The outer pipe wall of the air outlet outer pipe (12) is wrapped with a heat preservation layer (7) made of rock wool material.

8. The high efficiency heat exchanger for a farm as claimed in claim 5, wherein: ​ 9. The farm efficient heat exchanger of claim 1, wherein: The inlet end of the exhaust channel (3) comprises a first sub-port and a second sub-port, the first sub-port is connected with the gas hood, the second sub-port is communicated with a dirty air collecting air duct, the other end of the dirty air collecting air duct away from the second sub-port is communicated with a dust collecting pipeline for gravity dust settling, and the dust collecting pipeline is located at the bottom of the house and the inlet end is used for supplying indoor bottom airflow.

10. The high efficiency heat exchanger for a farm as claimed in claim 1, wherein: The heat exchange main body (1) is provided in several groups, the temperatures of different areas in the house are different, the same temperature corresponds to the same group of heat exchange main bodies (1), and the heat exchange order of the heat exchange main bodies (1) is arranged from high to low according to the temperatures of different areas.

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