A ventilation and air exchange device, a temperature-controlled sheep house based on the device, and a temperature control method

Abstract

The present invention relates to the technical field of livestock breeding houses, and discloses a ventilation and air change device, a temperature-controlled sheep house based on the device, and a temperature control method. In the present invention, since the circulating filter belt circulates inside the ventilation chamber and the cleaning chamber, and the circulating filter belt has multiple layers along the air flow direction, when the air passes through each layer of the circulating filter belt, the air can be continuously filtered and dehumidified by each layer of the circulating filter belt, and the filtering ability of the circulating filter belt is restored by the cleaning mechanism, and the dehumidifying ability of the circulating filter belt is restored by the dehumidifying mechanism. Therefore, the circulating filter belt can restore the filtering and dehumidifying abilities when re-entering the ventilation chamber, so that when ventilating and changing air, impurities inside the house can be isolated to avoid clogging the circulating filter belt and the ventilation driving mechanism, dehumidify the inside of the house while preventing the water vapor outside the house from entering and blocking the moisture exchange between the inside and the outside, and can keep the inside of the house dry and ensure the ventilation effect inside the house.

Description

Technical Field

[0001] The present invention relates to the technical field of livestock breeding houses, and specifically to a ventilation device, a temperature-controlled sheep house based on the device, and a temperature control method. Background Art

[0002] With the continuous development of the breeding industry, people's attention to animal welfare is gradually increasing. Especially in the northern regions of China, due to the low winter temperature, it brings great challenges to sheep breeding. Traditional sheep houses mostly adopt simple closed structures, which can resist cold to a certain extent, but poor ventilation is likely to cause diseases. While open sheep houses can ensure good ventilation conditions, they cannot effectively keep warm in the severe winter season, seriously affecting the health and production performance of the sheep flock.

[0003] Several common winter cold prevention measures on the market currently include covering the ceiling with plastic film, laying straw mats or wood chips as the ground insulation layer, and installing heating equipment such as electric blankets and warm air heaters. These measures have their own advantages and disadvantages: plastic film has a low cost, but a short service life and is easily damaged; straw mats have good heat preservation effects, but regular replacement increases the labor intensity; electric heating equipment has a significant heating effect, but high power consumption and poor economy.

[0004] In summary, the existing cold prevention measures generally have problems such as poor heat preservation effect, inconvenient maintenance, or too high operating costs, and are difficult to meet the needs of modern large-scale breeding. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a ventilation device, a temperature-controlled sheep house based on the device, and a temperature control method.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A ventilation and air change device includes a fixed frame and a mounting housing; a ventilation chamber and a cleaning chamber are arranged inside the mounting housing, the ventilation chamber and the cleaning chamber are isolated from each other, an internal ventilation opening is arranged at the bottom end of the ventilation chamber, and an external ventilation opening is arranged on one side of the movable end of the mounting housing where the ventilation chamber is located; a circulating filtration mechanism is arranged inside the mounting housing, the circulating filtration mechanism includes a circulating filter belt, a plurality of filter support rollers and a circulating driving unit, the filter support rollers are arranged inside the ventilation chamber, the circulating driving unit is arranged inside the cleaning chamber, and under the drive of the circulating driving unit and the tensioning action of the plurality of filter support rollers, the circulating filter belt circulates inside the ventilation chamber and the cleaning chamber; a ventilation driving mechanism is arranged inside the ventilation chamber and on the inner side of the external ventilation opening, the ventilation driving mechanism can control the air flow direction inside the ventilation chamber, and when the air moves from the internal ventilation opening to the external ventilation opening, it sequentially passes through the circulating filter belt to continuously filter the air; a cleaning mechanism and a dehumidifying mechanism are arranged inside the cleaning chamber, when the circulating filter belt passes through the cleaning mechanism, it can be cleaned to restore the filtering ability of the circulating filter belt, and when the circulating filter belt passes through the dehumidifying mechanism, it can be dried to restore the dehumidifying ability of the circulating filter belt.

[0008] Preferably, each of the filter support rollers is arranged on both sides inside the mounting housing, each of the filter support rollers includes a support roller shaft, both ends of the support roller shaft are respectively embedded inside the mounting housing, and spreading roller wheels are arranged at both ends of each of the support roller shafts; the circulating filter belt can sequentially pass through the spreading roller wheels corresponding to each of the filter support rollers, and the circulating filter belt can first pass through the filter support roller on the side closest to the internal ventilation opening inside the mounting housing, sequentially pass through each of the filter support rollers, and finally pass through the filter support roller on the side closest to the external ventilation opening.

[0009] Preferably, the circulating driving unit includes a plurality of circulating driving rollers and a circulating driving motor, friction wheels are arranged at both ends of each of the circulating driving rollers, the circulating driving motor is respectively in power transmission with each of the circulating driving rollers, and the rotation speeds and rotation directions of each of the circulating driving rollers are the same; the circulating filter belt can sequentially pass through the friction wheels corresponding to each of the circulating driving rollers, and each of the friction wheels has a frictional force with the circulating filter belt, and when each of the friction wheels rotates with the corresponding circulating driving roller, it can drive the circulating filter belt to circulate inside the ventilation chamber and the cleaning chamber.

[0010] Preferably, the circulating filter belt includes two outer filter layers and an inner moisture absorption layer. The inner moisture absorption layer is disposed between the two outer filter layers. The two sides of the outer filter layer are adhesively closed to each other, and friction coatings are provided at both ends of the outer filter layer. The friction coatings are in contact with the corresponding spreading rollers when passing through each of the filter support rollers, and the friction coatings are in contact with the corresponding friction wheels when passing through each of the circulating drive rollers. When the circulating filter belt passes through each of the filter support rollers and each of the circulating drive rollers, the inner moisture absorption layer is separated from each of the filter support rollers and each of the circulating drive rollers, and the inner moisture absorption layer remains in an expanded state.

[0011] Preferably, each of the cleaning mechanisms includes a plurality of side cleaning rollers, a collection unit, and a cleaning drive motor. Each of the side cleaning rollers is respectively disposed on both sides of the circulating filter belt. Each of the side cleaning rollers is power-driven with the cleaning drive motor, and the tangential direction of rotation of each of the side cleaning rollers is opposite to the moving direction of the circulating filter belt on the side.

[0012] Preferably, the collection unit includes a collection hopper and a collection drawer. The collection hopper is disposed below each of the side cleaning rollers. One side of the collection hopper facing the collection drawer is constricted. The collection drawer can slide out from the side of the cleaning chamber close to the external ventilation opening. Under the action of the collection hopper and gravity, the filter substances swept off from both sides of the circulating filter belt by each of the side cleaning rollers can fall into the collection hopper and enter the collection drawer for collection.

[0013] Preferably, the dehumidification mechanism includes two side pressing rollers and a collection funnel. The two side pressing rollers are respectively disposed on both sides of the circulating filter belt. The collection funnel is disposed below the two side pressing rollers. A drain pipe is provided at the bottom end of the collection funnel, and one end of the drain pipe away from the collection funnel extends out of the side of the cleaning chamber close to the external ventilation opening. The circulating filter belt can pass through the gap between the two side pressing rollers. Under the pressing of the two side pressing rollers, the moisture in the inner moisture absorption layer is squeezed out and slides down along the outer sides of the two side pressing rollers into the collection funnel. After the circulating filter belt is separated from the side pressing rollers, the inner moisture absorption layer expands again to restore its moisture absorption property.

[0014] Preferably, the ventilation drive mechanism includes a drive mounting frame and a plurality of drive blowers. The air outlet directions of each of the drive blowers are the same and can be adjusted synchronously. Each of the drive blowers jointly provides the power for the air to pass through multiple layers of the circulating filter belt during the movement between the inner ventilation opening and the external ventilation opening.

[0015] A temperature-controlled sheep house based on a ventilation device, which uses the above-mentioned ventilation device, further includes: a heat-insulating wall, a roof heat-insulating layer, an automatic temperature control system, and a sheep manure cleaning device;

[0016] The heat-insulating wall and the roof heat-insulating layer form the main body of the sheep house. The temperature inside the main body of the sheep house is controlled by the automatic temperature control system. The ventilation device is arranged inside the roof heat-insulating layer, and the inside of the main body of the sheep house is ventilated through the ventilation device;

[0017] The sheep manure cleaning device includes a number of collection channels and manure storage ponds. The collection channels all lead to the manure storage ponds, and the side of the collection channels facing the manure storage ponds slopes downward for cleaning.

[0018] A temperature control method for controlling the temperature inside the above-mentioned temperature-controlled sheep house based on a ventilation device.

[0019] Compared with the prior art, the present invention provides a ventilation device, a temperature-controlled sheep house based on this device, and a temperature control method, which have the following beneficial effects:

[0020] 1. In the process of air discharge or air intake, under the drive of the circulation drive unit and the tensioning effect of a number of filter support rollers, the circulation filter belt circulates inside the ventilation chamber and the cleaning chamber. And the circulation filter belt has multiple layers along the direction of air flow. Thus, when the air passes through each layer of the circulation filter belt, it can be continuously filtered and dehumidified by each layer of the circulation filter belt. The circulation filter belt circulates inside the ventilation chamber and the cleaning chamber. When the circulation filter belt passes through the cleaning mechanism, it can be cleaned to restore the filtering ability of the circulation filter belt. When the circulation filter belt passes through the dehumidifying mechanism, it can be dried to restore the dehumidifying ability of the circulation filter belt. Thus, the circulation filter belt can restore the filtering and dehumidifying abilities when it re-enters the ventilation chamber. Therefore, when ventilating, impurities inside the house can be isolated to avoid blocking the circulation filter belt and the ventilation drive mechanism, and while dehumidifying the inside of the house, the water vapor outside the house can be prevented from entering, thus blocking the moisture exchange between the inside and the outside, and the dryness inside the house can be maintained, ensuring the ventilation effect inside the house.

[0021] 2. When the circulating filter belt passes through each friction wheel, it can be driven by the frictional force of each friction wheel to move in a cycle along the route passing through each circulating drive roller and each filter support roller. And when the circulating filter belt passes through each filter support roller, it can be expanded under the action of the expanding roller to prevent the support roller shaft from exerting pressure on the internal moisture absorption layer and squeezing out the adsorbed moisture. Similarly, when the circulating filter belt passes through each circulating drive roller, it can be expanded under the action of the corresponding friction wheel to prevent each circulating drive roller from exerting pressure on the internal moisture absorption layer and squeezing out the adsorbed moisture, so as to ensure that the swelling state of the internal moisture absorption layer during its movement inside the ventilation chamber can maintain the moisture absorption effect of the internal moisture absorption layer to the greatest extent.

[0022] 3. For this kind of ventilation and air exchange device, each side cleaning roller is respectively arranged on both sides of the circulating filter belt, so that each side cleaning roller can respectively frictionally clean both sides of the circulating filter belt, detach the impurities adsorbed on both sides of the circulating filter belt due to ventilation. And because the tangential direction of the rotation of each side cleaning roller is opposite to the moving direction of the side circulating filter belt, the interaction between each side cleaning roller and the circulating filter belt is stronger, which can more effectively remove the impurities adsorbed on both sides of the circulating filter belt, and effectively restore the filtering ability of the circulating filter belt.

[0023] 4. For this kind of ventilation and air exchange device, the circulating filter belt is located between two side pressing rollers. Therefore, with the assistance of gravity, under the pressing of the two side pressing rollers, after the moisture in the internal moisture absorption layer is squeezed out, it can move downward along the two side pressing rollers and fall into the collection funnel, which can avoid splashing during the moisture squeezing process and effectively collect the moisture, and can effectively remove the moisture in the internal moisture absorption layer. Thus, after the circulating filter belt is separated from the two side pressing rollers, the internal moisture absorption layer can re-expand and restore its moisture absorption property.

[0024] 5. This kind of temperature-controlled sheep house based on the ventilation and air exchange device is equipped with an intelligent temperature control system and a ventilation and air exchange device, which not only ensures a warm and comfortable microclimate environment inside the sheep house, but also takes into account the effect of energy conservation and emission reduction, significantly improves the heat preservation and stability of the sheep house, reduces the incidence of diseases caused by cold, improves the overall growth rate and reproductive efficiency of the flock. And through the setting of the manure storage tank and the collection channel, the manure is sent into the manure storage tank from the collection channel, effectively preventing the manure from freezing, avoiding the problem that in the winter environment of a conventional sheep house, the excrement freezes inside the sheep house and cannot be discharged, resulting in great inconvenience that one can only wait for the temperature to rise and then shovel it out manually or with a forklift.

[0025] 6. This temperature control method improves the accuracy and response speed of temperature and humidity control through an automatic temperature control system and a ventilation device, reduces the livestock loss rate caused by environmental changes, enhances the reliability and robustness of the system, and can quickly make appropriate responses even in the face of sudden climate changes, thus fully ensuring the stability of the internal environment of the sheep house in winter and effectively guaranteeing the winter survival rate of lamb cubs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic perspective view of a temperature-controlled sheep house based on a ventilation device according to the present invention;

[0027] Figure 2 One of the schematic perspective views of a ventilation device according to the present invention;

[0028] Figure 3 Another schematic perspective view of a ventilation device according to the present invention;

[0029] Figure 4 Schematic internal structure view of a ventilation device according to the present invention;

[0030] Figure 5 Schematic layered structure view of a circulating filter belt of a ventilation device according to the present invention;

[0031] Figure 6 Schematic perspective view of a filter support roller and a circulating drive unit of a ventilation device according to the present invention;

[0032] Figure 7 According to the present invention Figure 6 Enlarged view of part A;

[0033] Figure 8 Schematic perspective view of a cleaning mechanism of a ventilation device according to the present invention;

[0034] Figure 9 Schematic perspective view of a dehumidifying mechanism of a ventilation device according to the present invention.

[0035] In the figure: 1, fixed frame; 2, installation housing; 21, ventilation chamber; 22, cleaning chamber; 23, internal ventilation opening; 24, external ventilation opening; 3, circulating filtration mechanism; 31, circulating filtration belt; 311, external filtration layer; 312, internal moisture absorption layer; 313, friction coating; 32, filtration support roller; 321, support roller shaft; 322, spreading roller; 33, circulating drive unit; 331, circulating drive roller; 332, circulating drive motor; 333, friction wheel; 4, ventilation drive mechanism; 41, drive installation frame; 42, drive fan; 5, cleaning mechanism; 51, side cleaning roller; 52, collection unit; 521, collection hopper; 522, collecting drawer; 53, cleaning drive motor; 6, dehumidification mechanism; 61, side pressing roller; 62, collection funnel; 63, drain pipe. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a ventilation and air exchange device, a temperature-controlled sheep house based on the device, and a temperature control method.

[0038] Embodiment 1: Please refer to Figures 1 - 9, a ventilation device, comprising a fixed frame 1 and an installation housing 2. One end of the installation housing 2 is rotatably connected to the fixed frame 1, and the angle between the bottom surface of the installation housing 2 and the fixed frame 1 can be adjusted. Inside the installation housing 2, there are a ventilation chamber 21 and a cleaning chamber 22, which are isolated from each other. At the bottom end of the ventilation chamber 21, there is an internal ventilation opening 23, and on the side of the ventilation chamber 21 located at the movable end of the installation housing 2, there is an external ventilation opening 24. Inside the installation housing 2, there is a circulating filtration mechanism 3, which includes a circulating filter belt 31, a number of filter support rollers 32, and a circulating drive unit 33. The filter support rollers 32 are arranged inside the ventilation chamber 21, and the circulating drive unit 33 is arranged inside the cleaning chamber 22. Driven by the circulating drive unit 33 and under the tensioning action of a number of filter support rollers 32, the circulating filter belt 31 circulates inside the ventilation chamber 21 and the cleaning chamber 22. Inside the ventilation chamber 21 and inside the external ventilation opening 24, there is a ventilation drive mechanism 4, which can control the air flow direction inside the ventilation chamber 21. When the air moves from the internal ventilation opening 23 to the external ventilation opening 24, it continuously filters the air through the circulating filter belt 31 in sequence. Inside the cleaning chamber 22, there is a cleaning mechanism 5 and a dehumidifying mechanism 6. When the circulating filter belt 31 passes through the cleaning mechanism 5, it can be cleaned to restore the filtering ability of the circulating filter belt 31. When the circulating filter belt 31 passes through the dehumidifying mechanism 6, it can be dried to restore the dehumidifying ability of the circulating filter belt 31.

[0039] During specific use, first, install this ventilation device on the roof of the house that needs ventilation through the fixed frame 1, and place the internal ventilation opening 23 and the external ventilation opening 24 inside and outside the house respectively. Then, through the action of the ventilation drive mechanism 4, control the air flow direction inside the ventilation chamber 21, and selectively drive the air to move from the internal ventilation opening 23 to the external ventilation opening 24 (discharge the dirty air in the room), or selectively drive the air to move from the external ventilation opening 24 to the internal ventilation opening 23 (draw in the clean air outside). In actual use, multiple such ventilation devices can be set on the roof, and multiple such ventilation devices can respectively perform the operations of air discharge and air inhalation at the same time.

[0040] During the above process of air discharge or air intake, driven by the circulation drive unit 33 and under the tension of a number of filter support rollers 32, the circulating filter belt 31 circulates inside the ventilation chamber 21 and the cleaning chamber 22. And the circulating filter belt 31 has multiple layers along the air flow direction, so that when the air passes through each layer of the circulating filter belt 31, it can be continuously filtered and dehumidified by each layer of the circulating filter belt 31. The circulating filter belt 31 circulates inside the ventilation chamber 21 and the cleaning chamber 22. When the circulating filter belt 31 passes through the cleaning mechanism 5, it can be cleaned to restore the filtering ability of the circulating filter belt 31. When the circulating filter belt 31 passes through the dehumidifying mechanism 6, it can be dried to restore the dehumidifying ability of the circulating filter belt 31. Thus, the circulating filter belt 31 can restore the filtering and dehumidifying abilities when re-entering the ventilation chamber 21. Therefore, during ventilation, impurities inside the house can be isolated to avoid clogging the circulating filter belt 31 and the ventilation drive mechanism 4, and while dehumidifying the inside of the house, the water vapor outside the house can be prevented from entering to block the moisture exchange between the inside and outside, and the dryness inside the house can be maintained to ensure the ventilation effect inside the house.

[0041] Embodiment 2: Please refer to Figures 2 - 9 , which is different from the above embodiment in that each of the filter support rollers 32 is arranged on both sides inside the installation housing 2. Each of the filter support rollers 32 includes a support roller shaft 321, and both ends of the support roller shaft 321 are respectively embedded inside the installation housing 2. Both ends of each support roller shaft 321 are provided with a spreading roller 322; the circulating filter belt 31 can sequentially pass through the spreading rollers 322 corresponding to each of the filter support rollers 32, and the circulating filter belt 31 can first pass through the filter support roller 32 on the side closest to the internal ventilation opening 23 inside the installation housing 2, sequentially pass through each of the filter support rollers 32, and finally pass through the filter support roller 32 on the side closest to the external ventilation opening 24.

[0042] The circulation drive unit 33 includes a plurality of circulation drive rollers 331 and a circulation drive motor 332. Friction wheels 333 are provided at both ends of each circulation drive roller 331. The circulation drive motor 332 is power-transmitted to each circulation drive roller 331 respectively (in this embodiment, reference can be made to Figures 6 - 7, a driving pulley is coaxially and fixedly arranged at the movable end of the circulating drive motor 332, a driven pulley is arranged at the top of each circulating drive roller 331, and the driving pulley and each driven pulley are respectively connected and driven by an independently arranged belt. Among them, the belt is a toothed belt with tooth grooves inside, and the driving pulley and each driven pulley are both pulleys with teeth on the outside, so that the driving pulley and the driven pulley can be driven by the belt), and the rotation speeds and rotation directions of each circulating drive roller 331 are the same; the circulating filter belt 31 can sequentially pass through the friction wheels 333 corresponding to each circulating drive roller 331, and there is friction between each friction wheel 333 and the circulating filter belt 31. When each friction wheel 333 rotates with the corresponding circulating drive roller 331, it can drive the circulating filter belt 31 to circulate inside the ventilation chamber 21 and the cleaning chamber 22.

[0043] The circulating filter belt 31 includes two outer filter layers 311 and an inner moisture absorption layer 312. The inner moisture absorption layer 312 is arranged between the two outer filter layers 311. The two sides of the outer filter layer 311 are adhesively closed to each other, and friction coatings 313 are arranged at both ends of the outer filter layer 311; the friction coatings 313 are in contact with the corresponding spreading roller wheels 322 when passing through each filter support roller 32, and the friction coatings 313 are in contact with the corresponding friction wheels 333 when passing through each circulating drive roller 331; when the circulating filter belt 31 passes through each filter support roller 32 and each circulating drive roller 331, the inner moisture absorption layer 312 is separated from each filter support roller 32 and each circulating drive roller 331, and the inner moisture absorption layer 312 remains in an expanded state.

[0044] During use, the outer filter layer 311 has a certain adsorption effect, can adsorb impurities in the air, and can remove the adhered impurities through friction cleaning. The inner moisture absorption layer 312 has a certain moisture absorption effect, can adsorb moisture in the air, and can extrude the moisture from the inside of the inner moisture absorption layer 312 through pressing.

[0045] Among them, the internal moisture absorption layer 312 is fixed inside the two external filter layers 311, and the width of the internal moisture absorption layer 312 is smaller than the width of the two external filter layers 311. The two ends of the two external filter layers 311 in the width direction are adhered to each other, so that the two external filter layers 311 and the internal moisture absorption layer 312 can move along the direction of the friction force when the friction coating 313 on any side is subjected to the friction force. When the circulating filter belt 31 passes through each friction wheel 333, it can be driven by the friction force of each friction wheel 333 to move in a cycle along the route passing through each circulating drive roller 331 and each filter support roller 32, and can be expanded under the action of the spreading roller 322 when the circulating filter belt 31 passes through each filter support roller 32, so as to prevent the support roller shaft 321 from exerting pressure on the internal moisture absorption layer 312 and squeezing out the adsorbed moisture therein. Similarly, when the circulating filter belt 31 passes through each circulating drive roller 331, it can be expanded under the action of the corresponding friction wheel 333, so as to prevent each circulating drive roller 331 from exerting pressure on the internal moisture absorption layer 312 and squeezing out the adsorbed moisture therein, and can ensure that the swelling state of the internal moisture absorption layer 312 during the movement inside the ventilation chamber 21 maximally maintains the moisture absorption effect of the internal moisture absorption layer 312.

[0046] Embodiment Three: Please refer to Figures 2 - 8 , which is different from the above embodiment in that the cleaning mechanism 5 includes a plurality of side cleaning rollers 51, a collection unit 52 and a cleaning drive motor 53. Each side cleaning roller 51 is respectively arranged on both sides of the circulating filter belt 31; each side cleaning roller 51 is respectively in power transmission with the cleaning drive motor 53, and the tangential direction of the rotation of each side cleaning roller 51 is opposite to the moving direction of the circulating filter belt 31 on the side.

[0047] The collection unit 52 includes a collection hopper 521 and a collection drawer 522. The collection hopper 521 is arranged below each side cleaning roller 51, and one side of the collection hopper 521 facing the collection drawer 522 is closed. The collection drawer 522 can slide out from the side of the cleaning chamber 22 close to the external ventilation opening 24; under the action of the collection hopper 521 and gravity, the filter materials swept off from both sides of the circulating filter belt 31 by each side cleaning roller 51 can fall into the collection hopper 521 and enter the collection drawer 522 for collection.

[0048] During use, since each side cleaning roller 51 is respectively arranged on both sides of the circulating filter belt 31, each side cleaning roller 51 can respectively perform frictional cleaning on both sides of the circulating filter belt 31, separating the impurities adsorbed on both sides of the circulating filter belt 31 due to ventilation. And because the tangential direction of the rotation of each side cleaning roller 51 is opposite to the moving direction of the side circulating filter belt 31, the interaction between each side cleaning roller 51 and the circulating filter belt 31 is stronger, and the impurities adsorbed on both sides of the circulating filter belt 31 can be removed more effectively, effectively restoring the filtering ability of the circulating filter belt 31. The removed impurities can respectively enter the lower collecting hopper 521 under the action of gravity and move towards the collecting drawer 522 along the inclined direction of the bottom surface of the collecting hopper 521. The impurities collected in the collecting drawer 522 can then be taken out from the side of the collecting drawer 522 close to the external ventilation port 24 of the cleaning chamber 22, and the impurities collected in the collecting drawer 522 can be removed.

[0049] The dehumidifying mechanism 6 includes two side pressing rollers 61 and a collecting funnel 62. The two side pressing rollers 61 are respectively arranged on both sides of the circulating filter belt 31, the collecting funnel 62 is arranged below the two side pressing rollers 61, and a drain pipe 63 is arranged at the bottom end of the collecting funnel 62. The end of the drain pipe 63 away from the collecting funnel 62 extends out of the side of the cleaning chamber 22 close to the external ventilation port 24; the circulating filter belt 31 can pass through the gap between the two side pressing rollers 61. Under the pressing of the two side pressing rollers 61, the moisture in the internal moisture-absorbing layer 312 is squeezed out and slides down along the outer sides of the two side pressing rollers 61 into the collecting funnel 62. After the circulating filter belt 31 is separated from the side pressing rollers 61, the internal moisture-absorbing layer 312 re-expands and restores its moisture-absorbing property.

[0050] Therefore, during use, since the circulating filter belt 31 is located between the two side pressing rollers 61, under the auxiliary action of gravity and the pressing of the two side pressing rollers 61, the moisture in the internal moisture-absorbing layer 312 can be squeezed out and then move downward along the two side pressing rollers 61 and fall into the collecting funnel 62. This can avoid splashing during the moisture squeezing process and effectively collect the moisture, effectively removing the moisture in the internal moisture-absorbing layer 312. Thus, after the circulating filter belt 31 is separated from the two side pressing rollers 61, the internal moisture-absorbing layer 312 re-expands and restores its moisture-absorbing property. And during actual use, a dryer can be arranged at the rear end of the side pressing roller 61 inside the cleaning chamber 22 and on the side of the moving direction of the circulating filter belt 31 to dry the internal moisture-absorbing layer 312 after most of the moisture has been removed by extrusion, completely removing the moisture in the internal moisture-absorbing layer 312 and avoiding mildew of the internal moisture-absorbing layer 312.

[0051] The ventilation drive mechanism 4 includes a drive mounting frame 41 and a number of drive fans 42. The air outlet directions of the drive fans 42 are the same and can be adjusted synchronously. The drive fans 42 jointly provide the power for the air to pass through the multi-layer circulation filter belt 31 during the movement between the internal ventilation opening 23 and the external ventilation opening 24. In specific use, the air movement direction of such a ventilation and air exchange device can be adjusted by the drive fans 42. In actual use, multiple such ventilation and air exchange devices can be installed on the roof, and multiple such ventilation and air exchange devices can respectively perform the operations of air discharge and air intake at the same time.

[0052] Embodiment 4: Please refer to Figure 1 , a temperature-controlled sheep house based on a ventilation and air exchange device, which uses a ventilation and air exchange device as described in Embodiments 1-3, and is characterized by further comprising: a heat-insulating wall, a roof heat-insulating layer, an automatic temperature control system, and a sheep manure cleaning device;

[0053] The heat-insulating wall and the roof heat-insulating layer form the main body of the sheep house, and a main frame is arranged inside for support. The main frame is made of high-strength steel and has good load-bearing capacity and corrosion resistance; the heat-insulating wall is made of double-layer hollow bricks and filled with polystyrene foam board inside to enhance the sound insulation and heat insulation effects; the roof heat-insulating layer uses materials with high reflectivity and low thermal conductivity, such as aluminum foil composite materials;

[0054] The temperature inside the main body of the sheep house is controlled by the automatic temperature control system. The automatic temperature control system integrates a temperature sensor, a controller, and a heater, and realizes constant temperature control through a preset threshold;

[0055] The ventilation and air exchange device is arranged inside the roof heat-insulating layer, and the ventilation and air exchange device is used to ventilate and exchange air inside the main body of the sheep house. The ventilation and air exchange device can remove harmful gases while maintaining a suitable humidity inside the room;

[0056] The sheep manure cleaning device includes a number of collection channels and a manure storage tank. The collection channels all lead to the manure storage tank, and the side of the collection channel facing the manure storage tank is cleaned downward, which can effectively prevent the manure from freezing, avoiding the problem that in the winter environment of a conventional sheep house, the excrement freezes inside the sheep house and cannot be discharged, resulting in the inconvenience that only manual or forklift shoveling can be used after waiting for the temperature to rise.

[0057] This temperature-controlled sheep house based on a ventilation and air exchange device uses a steel frame structure as the main body and combines a variety of advanced technologies and materials such as polystyrene foam boards in double-layer hollow brick walls and a roof insulation layer made of aluminum foil composite materials. At the same time, it is equipped with an intelligent temperature control system and a ventilation and air exchange device, which not only ensures a warm and comfortable microclimate environment inside the sheep house, but also takes into account the effect of energy conservation and emission reduction, significantly improving the warmth retention and stability of the sheep house, reducing the incidence of diseases caused by cold, and increasing the overall growth rate and reproductive efficiency of the flock; realizing automated management and monitoring, reducing labor input, and increasing economic benefits; through the application of renewable energy, reducing carbon emissions, and conforming to the development direction of green ecological agriculture.

[0058] Example 5: A temperature control method for controlling the temperature inside a temperature-controlled sheep house based on a ventilation and air exchange device as described in Example 4.

[0059] The automatic temperature and humidity control system includes an automatic temperature control system and a ventilation and air exchange device, specifically including a main control unit, temperature and humidity sensors, light sensors, fans, heating devices, humidifiers, drainage pumps, irrigation systems, and communication modules.

[0060] The main control unit is responsible for receiving data from various sensors, processing it, and sending instructions to the actuators; the temperature and humidity sensors are installed at different positions inside the greenhouse to monitor the changes in temperature and humidity in real time; the light sensors are used to detect the intensity of external natural light to assist in judging whether to open the sunshade net; the fans, heating devices, and humidifiers are used to lower, raise the temperature, and increase the air humidity respectively; the drainage pump is used to drain excess water to prevent waterlogging; the irrigation system ensures that plants receive an appropriate amount of water supply; the communication module allows farmers to remotely monitor the condition of the greenhouse through a mobile phone APP or other terminal devices.

[0061] When the temperature and humidity sensors detect that the environmental parameters deviate from the set values, the main control unit will initiate corresponding measures to restore them to the ideal range. For example, when the temperature is too high, first try to cool down through the fan; if the target still cannot be achieved, then open the sunshade net to reduce direct sunlight. On the contrary, when the temperature is too low, the heating device starts to operate until it returns to normal. Similarly, the same principle is followed for humidity control. In addition, historical records can be viewed at any time through the mobile phone APP, setting parameters can be adjusted, and even emergency response strategies in case of emergencies can be simulated.

[0062] This temperature control method improves the accuracy and response speed of temperature and humidity control, reduces the livestock loss rate caused by environmental changes; enhances the reliability and robustness of the system, and can quickly make appropriate responses even in the face of sudden climate changes, and can fully ensure the stability of the internal environment of the sheep house in winter, effectively ensuring the winter survival rate of lamb.

[0063] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation device, comprising a fixed frame and a mounting shell, characterized in that: A ventilation chamber and a cleaning chamber are provided inside the installation shell, the ventilation chamber and the cleaning chamber are isolated from each other, an internal vent is provided at the bottom of the ventilation chamber, and an external vent is provided on one side of the movable end of the installation shell; A circulating filter mechanism is arranged inside the installation shell, and the circulating filter mechanism includes a circulating filter belt, a plurality of filter support rollers and a circulating drive unit, the filter support roller is arranged inside the ventilation chamber, and the circulating drive unit is arranged inside the cleaning chamber. Under the drive of the circulating drive unit and the tensioning action of the plurality of filter support rollers, the circulating filter belt circulates inside the ventilation chamber and the cleaning chamber; A ventilation drive mechanism is arranged inside the ventilation chamber and inside the external ventilation opening, and the ventilation drive mechanism can control the air flow direction inside the ventilation chamber, and when the air moves from the internal ventilation opening to the external ventilation opening, the air is filtered continuously by passing through the circulating filter belt in sequence; The cleaning chamber is provided with a cleaning mechanism and a dehumidifying mechanism. When the circulating filter belt passes through the cleaning mechanism, it can be cleaned to restore the filtering capacity of the circulating filter belt. When the circulating filter belt passes through the dehumidifying mechanism, it can be dried to restore the dehumidifying capacity of the circulating filter belt. Each of the filter support rollers comprises a support roller shaft, and both ends of each of the support roller shafts are provided with a spreading roller wheel, and the circulating filter belt can sequentially pass through the spreading roller wheel corresponding to each of the filter support rollers; The circulation drive unit comprises a plurality of circulation drive rollers and a circulation drive motor, and friction wheels are arranged at both ends of the circulation drive rollers. The circulation filter belt can pass through the friction wheels corresponding to the circulation drive rollers in sequence, and each friction wheel has friction with the circulation filter belt. The circulating filter belt comprises two external filter layers and an internal moisture absorption layer, wherein the internal moisture absorption layer is arranged between the two external filter layers, the two sides of the external filter layers are glued and closed to each other, and the two ends of the external filter layer are both provided with friction coatings; The friction coating is in contact with the corresponding expansion roller when passing through each filtering support roller, and the friction coating is in contact with the corresponding friction wheel when passing through each circulating driving roller; When the circulating filter belt passes through each of the filter support rollers and each of the circulating drive rollers, the internal moisture absorption layer is separated from each of the filter support rollers and each of the circulating drive rollers, and the internal moisture absorption layer remains in an expanded state.

2. A ventilation device according to claim 1, characterized in that: Each of the filter support rollers is arranged on both sides of the interior of the installation shell, and both ends of the support roller shaft are respectively embedded in the interior of the installation shell, and the circulating filter belt can first pass through the filter support roller on the side closest to the internal ventilation port inside the installation shell, pass through each of the filter support rollers in turn, and finally pass through the filter support roller on the side closest to the external ventilation port.

3. A ventilation device according to claim 2, characterized in that: The circulating drive motor is respectively connected to each of the circulating drive rollers for power transmission, and the rotation speed and rotation direction of each of the circulating drive rollers are the same; When each of the friction wheels rotates along with the corresponding circulating driving roller, it can drive the circulating filter belt to circulate in the ventilation chamber and the cleaning chamber.

4. A ventilation device according to claim 3, characterized in that: The cleaning mechanisms each include a plurality of side cleaning rollers, a collecting unit and a cleaning drive motor, and each of the side cleaning rollers is respectively arranged on both sides of the circulating filter belt; Each of the side cleaning rollers is respectively powered by the cleaning drive motor, and the tangential direction of rotation of each of the side cleaning rollers is opposite to the moving direction of the circulating filter belt at the side.

5. A ventilation device according to claim 4, characterized in that: The collecting unit comprises a collecting hopper and a collecting drawer, wherein the collecting hopper is arranged below each of the side cleaning rollers, the collecting hopper closes toward one side of the collecting drawer, and the collecting drawer can slide out from a side of the cleaning chamber close to the external vent; Under the action of the collecting bucket and gravity, the filtered materials swept down from both sides of the circulating filter belt by each of the side cleaning rollers can fall into the collecting bucket and enter the collecting drawer for collection.

6. A ventilation device according to claim 1, characterized in that: The dehumidification mechanism includes two side pressing rollers and a collecting funnel, the two side pressing rollers are respectively arranged on both sides of the circulating filter belt, the collecting funnel is arranged below the two side pressing rollers, a drain pipe is arranged at the bottom of the collecting funnel, and one end of the drain pipe away from the collecting funnel extends out of the cleaning chamber near the external vent; The circulating filter belt can pass through the gap between the two side pressing rollers. Under the pressure of the two side pressing rollers, the moisture in the internal hygroscopic layer is squeezed out and slides along the outer sides of the two side pressing rollers to the inside of the collecting funnel. After the circulating filter belt is separated from the side pressing rollers, the internal hygroscopic layer expands again and restores its hygroscopicity.

7. A ventilation device according to claim 1, characterized in that: The ventilation drive mechanism includes a drive mounting frame and a plurality of drive fans, the air outlet directions of each of the drive fans remain consistent and can be adjusted synchronously, and each of the drive fans jointly provides power for the air to pass through multiple layers of the circulating filter belt during the movement between the internal vents and the external vents.

8. A temperature-controlled sheep house based on a ventilation device, using a ventilation device as described in any one of claims 1 to 7, characterized in that: Also includes: Insulated walls, roof insulation, automatic temperature control systems and sheep manure cleaning equipment; The heat-insulating wall and the roof insulation layer constitute the main body of the sheep house. The temperature inside the main body of the sheep house is controlled by an automatic temperature control system. The ventilation device is arranged inside the roof insulation layer, and the ventilation device is used to ventilate the inside of the main body of the sheep house. The sheep dung cleaning equipment comprises a plurality of collecting channels and a dung storage tank. The collecting channels all lead to the dung storage tank, and the collecting channels clean downward toward one side of the dung storage tank.

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