An intelligent temperature-controlled yak heat recovery ventilation system

Abstract

An intelligent temperature-controlled yak heat recovery ventilation system comprises a ventilation duct assembly (1), a fresh air blower (4), an exhaust gas exhaust fan (9), a drainage device (10), a server (12) and a heater (16). One end of the ventilation duct assembly (1) is connected to the fresh air blower (4) through a fresh air intake assembly (2) and a wind hood (3). The fresh air blower (4) draws cold fresh air from the outside into the ventilation duct assembly (1). The other end of the ventilation duct assembly (1) is connected to the exhaust gas exhaust fan (9) through a wind hood (3). The exhaust fan (9) is connected to the cowshed, and the exhaust fan (9) sucks the hot exhaust gas in the cowshed into the ventilation duct assembly (1). The cold new air and the hot exhaust gas pass through the ventilation duct assembly (1) alternately, and heat exchange and recovery are carried out in the ventilation duct assembly (1), and condensed water is formed. A plurality of heaters (16) are installed in the cowshed, and the beneficial effect is that by controlling the inlet and outlet air volume, the system can achieve a balanced distribution of temperature inside the cowshed and avoid the problem of uneven temperature changes; the heaters and exhaust fans in the system help to recover hot exhaust gas and improve energy utilization efficiency.

Description

Technical Field

[0001] The present invention relates to the fields of machine learning and animal husbandry, and specifically to an intelligent temperature-controlled yak heat recovery ventilation system. Background Art

[0002] With the advancement of animal husbandry and the increasing demand for a better breeding environment, heat recovery ventilation systems have begun to be introduced into barn ventilation. This not only resolves the conflict between ventilation and heating but also becomes part of energy-saving measures, helping to reduce barn operating costs and promote the sustainable development of animal husbandry. Its role is not limited to maintaining barn comfort and yak health; it also directly impacts energy consumption and the thermal efficiency of buildings. While ventilation is necessary, it can also result in significant heat loss, especially during the winter heating period, when this loss can account for half of the building's total heat loss. This not only leads to unstable barn temperatures but also increases energy consumption, further increasing operating costs.

[0003] However, existing heat recovery ventilation systems still face efficiency challenges in practice, primarily due to factors such as exhaust gas leakage and condensate management. Exhaust gas leakage reduces heat recovery efficiency by preventing complete gas exchange. Furthermore, condensate accumulation during winter can cause equipment to freeze or even rupture, impacting system operation and posing safety risks. Summary of the Invention

[0004] The present invention aims to provide an intelligent temperature-controlled yak heat recovery ventilation system, which can balance the indoor temperature of the cowshed and the discharge of condensed water by intelligently controlling the inlet and outlet air volumes, thereby solving the problems of easy mixing of fresh air and exhaust gas in the ventilation system, uneven indoor temperature changes, inconvenient condensed water collection, and easy leakage and freezing during discharge.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An intelligent temperature-controlled yak heat recovery ventilation system comprises a ventilation duct assembly (1), a fresh air blower (4), an exhaust gas exhaust fan (9), a drainage device (10), a server (12) and a heater (16). One end of the ventilation duct assembly (1) is connected to the fresh air blower (4) through a fresh air intake assembly (2) and a wind hood (3). The fresh air blower (4) draws cold fresh air from the outside into the ventilation duct assembly (1). The other end of the ventilation duct assembly (1) is connected to the exhaust gas exhaust fan (9) through a wind exchange assembly (7). The exhaust fan (9) is connected to the cowshed through the air hood (3). The exhaust fan (9) sucks the hot exhaust gas in the cowshed into the ventilation duct assembly (1). The cold new air and the hot exhaust gas pass through the ventilation duct assembly (1) alternately, and heat exchange and recovery are carried out in the ventilation duct assembly (1) to form condensed water. A plurality of heaters (16) are installed in the cowshed, and the cowshed is characterized in that: a plurality of indoor temperature sensors (17) are provided in the cowshed, and a pipe is provided inside the ventilation duct assembly (1). The fresh air blower (4) and the exhaust gas exhaust fan (9) are provided with a fresh air temperature sensor (14) and an exhaust gas temperature sensor (15) respectively. The drainage device (10) is connected to the bottom of the fresh air intake assembly (2) to discharge condensed water. The two sides of the exhaust gas intake assembly (8) are connected to the air supply assembly (6) through the side wind cover (11). The server (12) is provided with an air volume control model. The server (12) collects the fresh air temperature sensor in the ventilation system. (14), the real-time temperature data of the exhaust gas temperature sensor (15) and the pipe temperature sensor (1-4), and the preset temperature value of the cowshed are input into the air volume control model to obtain the corresponding working power data of the fresh air fan (4), the exhaust gas exhaust fan (9) and the heater (16), and the control instructions of the fresh air fan (4), the exhaust gas exhaust fan (9) and the heater (16) are sent to the corresponding components through the switch (13) to enable them to obtain the corresponding working power, thereby realizing the balanced control of the temperature inside the cowshed of the ventilation system.

[0007] Furthermore, the steps for generating the air volume control model are as follows:

[0008] Step S101, collecting data: collecting real-time temperature data of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17) and the pipe temperature sensors (1-4) in the ventilation system, as well as power data of the fresh air fan (4), the exhaust gas exhaust fan (9) and each heater (16);

[0009] Step S102, data preprocessing: normalizing the data collected in step S101 according to the maximum-minimum method, wherein the values ​​of the pipe temperature sensors (1-4), the indoor temperature sensor (17), and the heater (16) of the same components are averaged and then normalized according to the maximum-minimum method;

[0010] Step S103, constructing a neural network model: constructing a five-layer neural network model, wherein the input layer has 7 neurons, which correspond to the average values ​​of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), the pipe temperature sensors (1-4) and the heater (16), and the processed values ​​of the fresh air fan (4) and the exhaust gas exhaust fan (9);

[0011] Hidden layers: Three hidden layers are set to increase the complexity and learning ability of the model, with 128 neurons in each layer;

[0012] Output layer: The output layer will have 3 neurons, corresponding to the predicted power of the fresh air fan (4), the power of the exhaust fan (9), and the average power of the heater (16);

[0013] The ReLU activation function is used, the mean square error (MSE) is used as the loss function, and the Adam optimizer is used as the optimizer;

[0014] Step S104, training the model. The data processed in step S102 is input into the neural network model in step S103 and trained through 10,000 iterations or until the error value becomes stable.

[0015] Step S105, saving the model, saving the model trained in step S104 as an air volume control model;

[0016] When the air volume control model is used, the mean value of the indoor temperature sensor (17) is replaced by the preset temperature value of the cowshed and input into the model.

[0017] Furthermore, the server (12) is connected to the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), the pipe temperature sensors (1-4), the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) through the switch (13); the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), and the pipe temperature sensors (1-4) upload the collected temperature data to the server (12) through the switch (13); and the server (12) sends the control instructions to the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) through the switch (13).

[0018] Furthermore, a ventilation hood (1-1) is provided at the bottom of the ventilation duct assembly (1), a fresh air assembly water collecting tank (2-4) connected to the ventilation hood (1-1) is provided at the bottom of the fresh air intake assembly (2), a condensed water outlet (2-5) directed vertically downward is provided at the end of the fresh air assembly water collecting tank (2-4), the condensed water outlet (2-5) is connected to a drainage device (10) through a water pipe joint (2-6), and the drainage device (10) includes a drainage box (10-1), a water inlet pipe (10- 3) and a drainage pipe (10-4), a water inlet (10-2) for adding water to the drainage box (10-1) and for observation is provided at the upper part of the drainage box (10-1), a drainage pipe (10-4) is connected to the bottom of the drainage box (10-1), the end of the drainage pipe (10-4) is a water outlet (10-6), and the level of the water outlet (10-6) is between the water inlet pipe (10-3) and the water inlet (10-2), thereby preventing exhaust gas from escaping to the outside through the water outlet (10-6).

[0019] Furthermore, the fresh air intake assembly (2) includes a fresh air intake cover (2-1), and a plurality of rows of joint air ducts (2-2) are provided inside the fresh air intake cover (2-1). The arrangement and number of the joint air ducts (2-2) are the same as those of the ventilation ducts (1-3). The joint air ducts (2-2) include square interfaces (2-2-3) and round tubes (2-2-1). A transition zone (2-2-2) is provided between the square interfaces (2-2-3) and the round tubes (2-2-1). Center lines of the square interfaces (2-2-3), the round tubes (2-2-1) and the transition zone (2-2-2) are on the same straight line. The cross section formed by the plurality of square interfaces (2-2-3) is equal to the cross section of the fresh air intake cover (2-1), thereby blocking the fresh air intake cover (2-1) and preventing the inter-tube exhaust gas in the fresh air intake cover (2-1) from being transported forward.

[0020] Furthermore, the air exchange component (7) comprises an air exchange cover (7-1) and an air exchange head (7-2); the air exchange head (7-2) comprises an exchange head circular tube (7-2-1) and an exchange head square port (7-2-3); an exchange head transition zone (7-2-2) is provided between the exchange head circular tube (7-2-1) and the exchange head square port (7-2-3); a cross section formed by staggered and relative formation of a plurality of exchange head square ports (7-2-3) is equal to the cross section of the air exchange cover (7-1); a cross section formed by the exchange head square ports (7-2-3) on two relatively parallel air exchange heads (7-2) is equal to a square interface (2-2-3); and the center lines of the exchange head circular tubes (7-2-1) of the two air exchange heads (7-2) are on the same straight line; the air exchange heads (7-2) exchange new air and exhaust gas on both sides and enter their respective pipelines.

[0021] Furthermore, the exhaust gas intake assembly (8) comprises a fresh air intake cover (2-1) and a joint air duct (2-2), and exhaust gas outlets (2-3) on both sides of the exhaust gas intake assembly (8) are connected to the side wind covers (11).

[0022] Furthermore, the wind cover (3) comprises a mesh cover transition area (3-2) and a wind cover small head (3-3); a wind cover large head (3-1) is provided between the mesh cover transition area (3-2) and the wind cover small head (3-3); the wind cover small head (3-3) is used to connect to a fresh air blower (4) or an exhaust gas exhaust fan (9); and the mesh cover transition area (3-2) is used to communicate with a fresh air intake assembly (2) or an exhaust gas intake assembly (8).

[0023] Furthermore, the air supply assembly (6) is used to transport new air, and includes a fresh air delivery pipe (6-1) connected to the side wind cover (11). A fresh air delivery branch pipe (6-2) is provided at the end of the fresh air delivery pipe (6-1). An air supply hole (6-3) for outputting new air is provided below the fresh air delivery branch pipe (6-2). Both ends of the fresh air delivery branch pipe (6-2) are closed, thereby facilitating uniform output of new air from the air supply hole (6-3).

[0024] Its beneficial effects are:

[0025] 1. Temperature balance and exhaust gas recovery: By controlling the inlet and outlet air volume, the system can achieve a balanced temperature distribution inside the cowshed, avoiding the problem of uneven temperature changes; the heater and exhaust gas exhaust fan in the system help to recover hot exhaust gas and improve energy utilization efficiency;

[0026] 2. Condensate discharge: After the condensate in the system is formed, it is discharged through the drainage device, effectively solving the problem of condensate accumulation;

[0027] 3. Real-time temperature monitoring and control: Multiple indoor temperature sensors and pipe temperature sensors monitor temperature data in real time. Fresh air temperature sensors and exhaust gas temperature sensors are also used to monitor the temperature of inlet and outlet air. The server collects data from these sensors to achieve intelligent control of the ventilation system.

[0028] 4. Air volume control model: The air volume control model within the server calculates the operating power of the fresh air fan, exhaust fan, and heater based on real-time temperature data and the preset temperature value of the cowshed. Control instructions are sent to the corresponding components through the switch to achieve temperature balance control of the ventilation system.

[0029] 5. Optimization of fresh air intake components and exhaust gas intake components: The design of the fresh air intake components prevents the exhaust gas from being transported forward between the pipes, ensuring that the fresh air and exhaust gas will not mix. The exhaust gas intake components use air exchange components to avoid mixing between fresh air and exhaust gas, maintain air cleanliness, and improve system airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the ventilation system structure;

[0031] Figure 2 yes Figure 1 Exploded view;

[0032] Figure 3 yes Figure 1 Bottom view of

[0033] Figure 4 yes Figure 3 Exploded view of

[0034] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0035] Figure 6 is a schematic diagram of the structure of a ventilation duct assembly (1);

[0036] Figure 7 yes Figure 6 Cross-sectional view along the B axis;

[0037] Figure 8 It is the flow chart of generating the air volume control model;

[0038] Figure 9 is a structural schematic diagram of the fresh air intake assembly (2);

[0039] Figure 10 It is a structural diagram of the joint air duct (2-2);

[0040] Figure 11 It is a structural schematic diagram of the wind cover (3);

[0041] Figure 12 is a structural schematic diagram of the air exchange component (7);

[0042] Figure 13 It is a structural diagram of the wind changer (7-2);

[0043] Figure 14 It is an axonometric drawing of the wind changer (7-2);

[0044] Figure 15 is a schematic structural diagram of a drainage device (10);

[0045] Figure 16 yes Figure 15 Cross-sectional view along the C axis;

[0046] Figure 17 It is a schematic diagram of the drainage device (10) discharging water outwards;

[0047] Figure 18It is a schematic diagram when the water level in the drainage device (10) is lower than the water outlet (10-6);

[0048] Figure 19 This is a circuit connection diagram of the ventilation system.

[0049] 1: Ventilation duct assembly, 2: Fresh air intake assembly, 3: Air hood, 4: Fresh air fan, 5: Exhaust duct, 6: Air supply assembly, 7: Air exchange assembly, 8: Exhaust air intake assembly, 9: Exhaust exhaust fan, 10: Drainage device, 11: Side wind hood, 12: Server, 13: Switch, 14: Fresh air temperature sensor, 15: Exhaust gas temperature sensor, 16: Heater, 17: Indoor temperature sensor, 1-1: Ventilation hood, 1-2: Ventilation hood water collection tank, 1-3: Ventilation duct, 1-4: Pipe temperature sensor, 2-1: Fresh air intake hood, 2-2: Connector duct, 2-3: Exhaust outlet, 2-4: Fresh air assembly water collection tank Trough, 2-5: Condensate outlet, 2-6: Water pipe joint, 3-1: Large end of air hood, 3-2: Transition zone of mesh cover, 3-3: Small end of air hood, 6-1: Fresh air delivery pipe, 6-2: Fresh air delivery branch pipe, 6-3: Air supply hole, 7-1: Air exchange hood, 7-2: Air exchange head, 10-1: Drain box, 10-2: Water inlet, 10-3: Water inlet pipe, 10-4: Drain pipe, 10-5: Cover, 10-6: Water outlet, 2-2-1: Round pipe, 2-2-2: Transition zone, 2-2-3: Square interface, 7-2-1: Exchange head round pipe, 7-2-2: Exchange head transition zone, 7-2-3: Exchange head square port. DETAILED DESCRIPTION

[0050] The following examples and the accompanying drawings further illustrate the specific implementation methods provided by the present invention.

[0051] like Figure 1-5As shown, an intelligent temperature-controlled yak heat recovery ventilation system mainly includes a ventilation duct assembly (1), a wind hood (3) and an exhaust gas exhaust fan (9), a fresh air intake assembly (2) is provided between the wind hood (3) and the ventilation duct assembly (1), the exhaust gas exhaust fan (9) is connected together through the exhaust gas intake assembly (8) and the air exchange assembly (7), an air supply assembly (6) is provided on both sides of the exhaust gas intake assembly (8), the air supply assembly (6) is connected to the exhaust gas intake assembly (8) through the side wind hood (11), one end of the ventilation duct assembly (1) is connected through the fresh air intake assembly (2) and The air cover (3) and the fresh air blower (4) are connected, and the fresh air blower (4) sucks the cold fresh air from the outside into the ventilation duct assembly (1). The other end of the ventilation duct assembly (1) passes through the air exchange assembly (7), then passes through the exhaust air intake assembly (8), and is then connected to the exhaust air exhaust fan (9) through the air cover (3). The exhaust air exhaust fan (9) sucks the hot exhaust gas in the cowshed into the ventilation duct assembly (1). The cold fresh air and the hot exhaust gas meet in the ventilation duct assembly (1), and heat exchange and recovery are completed through the ventilation duct assembly (1), forming hot fresh air and cold exhaust gas. The two sides of the exhaust air intake assembly (8) are connected to the air supply assembly (6) through the side air cover (11), so that the hot fresh air is led to every corner of the cowshed.

[0052] The air supply assembly (6) is used to transport fresh air and includes a fresh air delivery pipe (6-1) connected to the side wind cover (11). A fresh air delivery branch pipe (6-2) is provided at the end of the fresh air delivery pipe (6-1). An air supply hole (6-3) for outputting fresh air is provided below the fresh air delivery branch pipe (6-2). Both ends of the fresh air delivery branch pipe (6-2) are closed, thereby facilitating uniform output of fresh air from the air supply hole (6-3).

[0053] like Figure 5 、 6 As shown in FIG7 , the ventilation duct assembly (1) includes a ventilation hood water collection tank (1-2), a plurality of rows of ventilation pipes (1-3) are provided inside the ventilation hood water collection tank (1-2), a ventilation hood (1-1) for collecting condensed water in the ventilation hood water collection tank (1-2) is provided at the bottom of the ventilation hood water collection tank (1-2), and a pipe temperature sensor (1-4) for monitoring the temperature inside the ventilation hood (1-1) is provided on the inner side of the ventilation hood (1-1). The temperature data collected by the pipe temperature sensor (1-4) is uploaded to the air inlet. Similarly, an exhaust gas temperature sensor (15) and a fresh air temperature sensor (14) are respectively provided at the air inlet of the fresh air blower (4) and the exhaust gas exhaust fan (9). In order to better control the room temperature inside the cowshed, heaters (16) are provided at multiple locations inside the cowshed to increase the temperature inside the cowshed.

[0054] like Figure 19As shown, the circuit connection relationship inside the ventilation system is as follows: the server (12) is connected to other components through the switch (13), wherein the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17) and the pipe temperature sensor (1-4) upload the collected temperature data to the server (12) through the switch (13), and an air volume control model is set inside the server (12). According to the collected temperature data, the server (12) sends the optimal control instruction to the fresh air fan (4), the exhaust gas exhaust fan (9) and the heater (16) through the switch (13), thereby achieving the goal of keeping the temperature of the cowshed within an appropriate temperature range under low energy consumption.

[0055] The generation process of the air volume control model is as follows: Figure 8 As shown,

[0056] Step S101, collecting data: collecting real-time temperature data of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17) and the pipe temperature sensors (1-4) in the ventilation system, as well as power data of the fresh air fan (4), the exhaust gas exhaust fan (9) and each heater (16);

[0057] Step S102, data preprocessing: normalizing the data collected in step S101 according to the maximum-minimum method, wherein the values ​​of the pipe temperature sensors (1-4), the indoor temperature sensor (17), and the heater (16) of the same components are averaged and then normalized according to the maximum-minimum method;

[0058] Step S103, constructing a neural network model: using a five-layer neural network model, wherein the input layer has 7 neurons, which correspond to the average values ​​of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), the pipe temperature sensors (1-4) and the heater (16), and the processed values ​​of the fresh air fan (4) and the exhaust gas exhaust fan (9);

[0059] Hidden layers: Three hidden layers are set to increase the complexity and learning ability of the model, with 128 neurons in each layer;

[0060] Output layer: The output layer will have 4 neurons, corresponding to the predicted power of the fresh air fan (4), the power of the exhaust fan (9), the average power of the heater (16), and the average temperature of the indoor temperature sensor (17).

[0061] The ReLU activation function is used, the mean square error (MSE) is used as the loss function, and the Adam optimizer is used as the optimizer.

[0062] Step S104, training the model. The data processed in step S102 is input into the neural network model in step S103 and trained through 10,000 iterations or until the error value becomes stable.

[0063] Step S105 , saving the model, and saving the model trained in step S104 as an air volume control model.

[0064] like Figure 9 and 10 As shown, the fresh air intake assembly (2) includes a fresh air intake hood (2-1), and multiple rows of joint air ducts (2-2) are provided inside the fresh air intake hood (2-1). The arrangement and number of the joint air ducts (2-2) are the same as those of the ventilation ducts (1-3). A fresh air assembly water collecting tank (2-4) connected to the ventilation hood (1-1) is provided at the bottom of the fresh air intake hood (2-1). A condensate outlet (2-5) for discharging water downward is provided at the end of the fresh air assembly water collecting tank (2-4). A water pipe joint (2-6) connected to the drainage device (10) is provided at the lower end of the condensate outlet (2-5). An exhaust outlet (2-3) for discharging exhaust gas is provided on the side of the fresh air intake assembly (2). The exhaust outlet (2-3) is connected to the exhaust duct (5) through the side wind hood (11), and the exhaust gas in the cowshed is discharged to the outside through the exhaust duct (5). As shown Figure 9 As shown, the joint air duct (2-2) mainly includes a square interface (2-2-3) and a circular tube (2-2-1). A transition zone (2-2-2) is provided between the square interface (2-2-3) and the circular tube (2-2-1). The center lines of the square interface (2-2-3), the circular tube (2-2-1) and the transition zone (2-2-2) are on the same straight line. The cross section formed by the multiple square interfaces (2-2-3) is equal to the cross section of the fresh air intake hood (2-1), thereby blocking the fresh air intake hood (2-1) and preventing the inter-tube exhaust gas in the fresh air intake hood (2-1) from being transported forward, so that it can only be discharged through the exhaust outlet (2-3). The structure of the exhaust gas intake assembly (8) is similar to that of the fresh air intake assembly (2), including a fresh air intake cover (2-1) and a joint air duct (2-2), but the bottom of the exhaust gas intake assembly (8) does not have a fresh air assembly water collection tank (2-4), and the exhaust gas outlets (2-3) on both sides of the exhaust gas intake assembly (8) are connected to the side wind covers (11).

[0065] like Figure 11 As shown, the wind hood (3) is provided with a wind hood small head (3-3) connected to the wind hood small head (3-3) and the fresh air blower (4) or the exhaust gas exhaust fan (9), and is also provided with a mesh cover transition area (3-2) for communicating with the exhaust gas intake assembly (8) and the fresh air intake assembly (2), and a wind hood large head (3-1) is provided between the wind hood small head (3-3) and the mesh cover transition area (3-2).

[0066] like Figure 12-14As shown, the air exchange assembly (7) mainly includes an air exchange cover (7-1) and an air exchange head (7-2), wherein the air exchange head (7-2) is as shown in FIG. Figure 10 and 11 As shown, it mainly includes an exchange head circular tube (7-2-1) and an exchange head square port (7-2-3), and an exchange head transition zone (7-2-2) is provided between the exchange head circular tube (7-2-1) and the exchange head square port (7-2-3). The cross section formed by the staggered and relative formation of the plurality of exchange head square openings (7-2-3) is equal to the cross section of the air exchange hood (7-1), wherein the cross section formed by the exchange head square openings (7-2-3) on two relatively parallel air exchange heads (7-2) is equal to a square interface (2-2-3), and the center lines of the exchange head circular tubes (7-2-1) of the two air exchange heads (7-2) are on the same straight line. Through the design of the air exchange head (7-2), the new air and exhaust gas on both sides of the air exchange head (7-2) can enter the respective pipelines, that is, the new air originally in the pipe is transported between the pipes after passing through the air exchange head (7-2), and the exhaust gas originally transported in the pipe of the exhaust gas intake assembly (8) is exchanged through the air exchange head (7-2) and enters the pipes of the ventilation duct assembly (1).

[0067] like Figure 15 and 16 As shown, the drainage device (10) is used to discharge condensed water in the ventilation system. Since the ventilation system has an inclination, the end located at the fresh air blower (4) is lower and the end located at the exhaust gas exhaust fan (9) is higher, so that the condensed water passes through the ventilation cover (1-1) and the fresh air component water collection tank (2-4) and finally flows into the drainage device (10). The drainage device (10) includes a drainage box (10-1), a water inlet pipe (10-3) and a drainage pipe (10-4). A water inlet (10-2) is provided at the upper part of the drainage box (10-1) for adding water to the drainage box (10-1) to prevent the drainage box (10-1) from being lower than the inlet of the water inlet pipe (10-3) on the drainage box (10-1). This arrangement can prevent the exhaust gas from being discharged along the water inlet pipe (10-3). A cover (10-5) is provided on the water inlet (10-2) for preventing dust and ash, and a drainage pipe (10-4) is connected to the bottom of the drainage box (10-1), wherein the end of the drainage pipe (10-4) is a water outlet (10-6), and the level of the water outlet (10-6) is higher than the water inlet pipe (10-3). With this arrangement, the water inlet pipe (10-3) can be sealed by condensed water, thereby preventing exhaust gas from leaking out through the drainage device (10). This design is the innovation of the present invention, which can prevent exhaust gas from leaking out and facilitate the collection and discharge of condensed water.

[0068] In specific use, such as Figure 2As shown, the conveying path of the new air is as follows: it is drawn into the ventilation system by the fresh air blower (4), enters the joint air duct (2-2) in the fresh air intake assembly (2) through the air hood (3), and then enters the ventilation pipe (1-3) in the ventilation duct assembly (1), and then exchanges heat with the exhaust gas outside the ventilation pipe (1-3) through the ventilation pipe (1-3), thereby converting the cold new air into hot new air. The hot new air passes through the air exchange assembly (7), and is conveyed to the inner pipe of the exhaust air intake assembly (8), and then is connected to the air supply assembly (6) through the side air hoods (11) on both sides of the exhaust air intake assembly (8), and then the hot new air is conveyed to every corner of the cowshed. The exhaust path of the waste gas is as follows: the waste gas enters the pipe inside the waste gas intake assembly (8) through the wind hood (3) from the waste gas exhaust fan (9), and then exchanges to the pipe of the ventilation duct assembly (1) through the air exchange assembly (7). Due to the heat exchange in the waste gas, the temperature gradually decreases, and part of the water vapor in it will become condensed water and condense down. The condensed water is collected through the ventilation hood (1-1) and the fresh air assembly water collection tank (2-4), and the waste gas continues to be transported outward, passes through the fresh air intake assembly (2), and then passes through the side wind hood (11), and finally discharged to the outside through the exhaust duct (5). Figure 17 As shown, when the water level in the drainage box (10-1) is higher than the water outlet (10-6), the condensed water will be discharged from the water outlet (10-6) due to the water pressure. Figure 18 As shown, when the water stored in the drainage device (10) is lower than the water inlet pipe (10-3), waste gas will enter the drainage box (10-1) through the drainage device (10). However, since the level of the water outlet (10-6) is higher than the water inlet pipe (10-3), it can be ensured that the drainage device (10) is sealed due to the pressure of water in the drainage pipe (10-4), preventing waste gas from escaping from the water outlet (10-6). Since the level of the water outlet (10-6) is lower than the ventilation hood (1-1), when there is condensed water, it will be injected into the drainage device (10), and at the same time, it will not affect the collection of condensed water. As long as there is water in the drainage device (10), waste gas will not be discharged outward through the water outlet (10-6).

[0069] If the temperature in the cowshed is to be balanced to a specified temperature, the server (12) collects data from the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), and the pipe temperature sensors (1-4), obtains the power that the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) should use through the air volume control model, and sends the corresponding control instructions to the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) through the switch (13), thereby obtaining the optimal house temperature. By controlling the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) through the air volume control model, the room temperature of the ventilation system can be balanced.

[0070] Although some specific embodiments are given above to illustrate and describe the present invention, it is not intended that the present invention is limited to the various details thereof. On the contrary, various modifications may be made to the various details without departing from the spirit of the present invention within the scope and range equivalent to the claims.

Claims

1. An intelligent temperature-controlled yak heat recovery ventilation system, comprising a ventilation duct assembly (1), a fresh air blower (4), an exhaust gas exhaust fan (9), a drainage device (10), a server (12) and a heater (16), wherein one end of the ventilation duct assembly (1) is connected to the fresh air blower (4) through a fresh air intake assembly (2) and a wind hood (3), and the fresh air blower (4) draws cold fresh air from the outside into the ventilation duct assembly (1), and the other end of the ventilation duct assembly (1) is connected to the exhaust gas exhaust fan (9) through an air exchange assembly (7) and an exhaust gas intake assembly (8), and then through a wind hood (3), and the exhaust gas exhaust fan (9) draws hot exhaust gas in the cowshed into the ventilation duct assembly (1), and the cold fresh air and the hot exhaust gas pass through the ventilation duct assembly (1) in an alternating manner, and heat exchange and recovery are performed in the ventilation duct assembly (1), and condensed water is formed, and a plurality of heaters (16) are installed in the cowshed, characterized in that: The cowshed is provided with a plurality of indoor temperature sensors (17), the ventilation duct assembly (1) is provided with a duct temperature sensor (1-4), the fresh air fan (4) and the exhaust gas exhaust fan (9) are provided with a fresh air temperature sensor (14) and an exhaust gas temperature sensor (15) respectively, the drainage device (10) is connected to the bottom of the fresh air intake assembly (2) to discharge condensed water, the two sides of the exhaust gas intake assembly (8) are connected to the air supply assembly (6) through the side wind cover (11), and the server (12) is provided with an air volume control model, the server (12) collects the real-time temperature data of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15) and the duct temperature sensor (1-4) in the ventilation system, and the preset temperature value of the cowshed is input into the air volume control model, obtains the corresponding working power data of the fresh air fan (4), the exhaust gas exhaust fan (9) and the heater (16), and performs the air volume control on the fresh air fan (4), the exhaust gas exhaust fan (9) and the heater (16). The control instructions of the device (16) are sent to the corresponding components through the switch (13) so that they can obtain the corresponding working power, thereby realizing the balanced control of the temperature inside the cowshed of the ventilation system. The air exchange component (7) includes an air exchange cover (7-1) and an air exchange head (7-2). The air exchange head (7-2) includes an exchange head circular tube (7-2-1) and an exchange head square port (7-2-3). An exchange head transition area (7-2) is provided between the exchange head circular tube (7-2-1) and the exchange head square port (7-2-3). 2-2), a cross section formed by staggered and relative multiple exchange head square openings (7-2-3) is equal to the cross section of the air exchange cover (7-1), a cross section formed by the exchange head square openings (7-2-3) on two relatively parallel air exchange heads (7-2) is equal to a square interface (2-2-3), and the center lines of the exchange head circular tubes (7-2-1) of the two air exchange heads (7-2) are on the same straight line, and the air exchange heads (7-2) exchange the new air and exhaust gas on both sides into their respective pipelines.

2. The intelligent temperature-controlled yak heat recovery ventilation system according to claim 1 is characterized by: The steps for generating the air volume control model are as follows: Step S101, collecting data: collecting real-time temperature data of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17) and the pipe temperature sensors (1-4) in the ventilation system, as well as power data of the fresh air fan (4), the exhaust gas exhaust fan (9) and each heater (16); Step S102, data preprocessing: normalizing the data collected in step S101 according to the maximum-minimum method, wherein the values ​​of the pipe temperature sensors (1-4), the indoor temperature sensor (17), and the heater (16) of the same components are averaged and then normalized according to the maximum-minimum method; Step S103, constructing a neural network model: constructing a five-layer neural network model, wherein the input layer has 7 neurons, which correspond to the average values ​​of the fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), the pipe temperature sensors (1-4) and the heater (16), and the processed values ​​of the fresh air fan (4) and the exhaust gas exhaust fan (9); Hidden layers: Three hidden layers are set to increase the complexity and learning ability of the model, with 128 neurons in each layer; Output layer: The output layer will have 3 neurons, corresponding to the predicted power of the fresh air fan (4), the power of the exhaust fan (9), and the average power of the heater (16); The ReLU activation function is used, the mean square error (MSE) is used as the loss function, and the Adam optimizer is used as the optimizer; Step S104, training the model. The data processed in step S102 is input into the neural network model in step S103 and trained through 10,000 iterations or until the error value becomes stable. Step S105, saving the model, saving the model trained in step S104 as an air volume control model; When the air volume control model is used, the mean value of the indoor temperature sensor (17) is replaced by the preset temperature value of the cowshed and input into the model.

3. The intelligent temperature-controlled yak heat recovery ventilation system according to claim 2 is characterized by: The server (12) is connected to a fresh air temperature sensor (14), an exhaust gas temperature sensor (15), an indoor temperature sensor (17), and a pipe temperature sensor (1-4), as well as a fresh air fan (4), an exhaust gas exhaust fan (9), and a heater (16) through a switch (13). The fresh air temperature sensor (14), the exhaust gas temperature sensor (15), the indoor temperature sensor (17), and the pipe temperature sensor (1-4) upload collected temperature data to the server (12) through the switch (13). The server (12) sends a control instruction to the fresh air fan (4), the exhaust gas exhaust fan (9), and the heater (16) through the switch (13).

4. The intelligent temperature-controlled yak heat recovery ventilation system according to claim 3 is characterized by: The bottom of the ventilation duct assembly (1) is provided with a ventilation hood (1-1), the bottom of the fresh air intake assembly (2) is provided with a fresh air assembly water collecting tank (2-4) connected to the ventilation hood (1-1), the end of the fresh air assembly water collecting tank (2-4) is provided with a condensed water outlet (2-5) directed vertically downward, the condensed water outlet (2-5) is connected to a drainage device (10) through a water pipe joint (2-6), and the drainage device (10) includes a drainage box (10-1), a water inlet pipe (10-3) and a drainage pipe (10-4); a water inlet (10-2) for adding water to the drainage box (10-1) and for observation is provided at the upper part of the drainage box (10-1); a drainage pipe (10-4) is connected to the bottom of the drainage box (10-1); the end of the drainage pipe (10-4) is a water outlet (10-6); the level of the water outlet (10-6) is between the water inlet pipe (10-3) and the water inlet (10-2), thereby preventing exhaust gas from escaping to the outside through the water outlet (10-6).

5. The intelligent temperature-controlled yak heat recovery ventilation system according to any one of claims 1 to 4, characterized in that: The fresh air intake assembly (2) comprises a fresh air intake cover (2-1), wherein a plurality of rows of joint air ducts (2-2) are arranged inside the fresh air intake cover (2-1), wherein the arrangement and number of the joint air ducts (2-2) are the same as those of the ventilation ducts (1-3), wherein the joint air ducts (2-2) comprise square interfaces (2-2-3) and round tubes (2-2-1), wherein a transition zone (2-2-2) is provided between the square interfaces (2-2-3) and the round tubes (2-2-1), wherein the center lines of the square interfaces (2-2-3), the round tubes (2-2-1) and the transition zone (2-2-2) are on the same straight line, and the cross section formed by the plurality of square interfaces (2-2-3) is equal to the cross section of the fresh air intake cover (2-1), thereby blocking the fresh air intake cover (2-1) and preventing the inter-tube exhaust gas in the fresh air intake cover (2-1) from being transported forward.

6. The intelligent temperature-controlled yak heat recovery ventilation system according to any one of claims 1 to 4, characterized in that: The exhaust gas intake assembly (8) comprises a fresh air intake cover (2-1) and a joint air duct (2-2), and exhaust gas outlets (2-3) on both sides of the exhaust gas intake assembly (8) are connected to the side wind covers (11).

7. The intelligent temperature-controlled yak heat recovery ventilation system according to any one of claims 1 to 4, characterized in that: The wind cover (3) comprises a mesh cover transition area (3-2) and a wind cover small head (3-3); a wind cover large head (3-1) is provided between the mesh cover transition area (3-2) and the wind cover small head (3-3); the wind cover small head (3-3) is used to connect to a fresh air blower (4) or an exhaust gas exhaust fan (9); and the mesh cover transition area (3-2) is used to communicate with a fresh air intake assembly (2) or an exhaust gas intake assembly (8).

8. The intelligent temperature-controlled yak heat recovery ventilation system according to any one of claims 1 to 4, characterized in that: The air supply assembly (6) is used to transport new air, and includes a new air delivery pipe (6-1) connected to the side wind cover (11). A new air delivery branch pipe (6-2) is provided at the end of the new air delivery pipe (6-1). An air supply hole (6-3) for outputting new air is provided below the new air delivery branch pipe (6-2). Both ends of the new air delivery branch pipe (6-2) are closed, thereby facilitating uniform output of new air from the air supply hole (6-3).

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