Energy-saving fresh air circulation method for breeding silkworms with artificial feed

Abstract

The invention relates to the technical field of silkworm breeding environment control, and discloses an energy-saving fresh air circulation method for silkworm breeding with artificial feed, which comprises the following steps: introducing external air through a fresh air inlet, and filtering and disinfecting the external air to generate clean fresh air; heat exchange is conducted on the clean fresh air and exhausted indoor air through a heat exchanger, and the clean fresh air is preheated; the humidity and temperature of the silkworm breeding environment are monitored through the intelligent control unit, the ventilation quantity is adjusted according to monitoring data, and the humidity of the silkworm breeding environment is kept at 70%-80%, and the temperature of the silkworm breeding environment is kept at 25-28 DEG C; and the preheated clean fresh air is introduced into the silkworm breeding room, indoor air is exhausted through an exhaust outlet, and heat of the exhausted indoor air is recycled by the heat exchanger. The heat exchanger is arranged between the fresh air channel and the exhaust channel, so that exhausted indoor air exchanges heat with clean fresh air which is about to enter, the heating energy consumption can be effectively reduced, and the load of a temperature control system is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mulberry silkworm breeding environment control, in particular to an energy-saving fresh air circulation method for artificial feed silkworm breeding. BACKGROUND

[0002] At present, artificial feed silkworm breeding gradually replaces the traditional mulberry leaf breeding method in production practice and becomes an important path suitable for large-scale and factory silkworm breeding. In order to ensure the normal development of silkworms, the silkworm breeding environment needs to be maintained in a relatively stable temperature and humidity range. Usually, a fresh air system is set up to continuously replace indoor air to adjust temperature and humidity and dilute harmful gases. In the prior art, the fresh air system usually adopts the method of directly introducing outdoor air, and then uses a ventilation fan or an air conditioning device to artificially adjust the temperature to achieve the purpose of environment control.

[0003] However, the above technical means has the problem of high energy consumption. Since there is a large difference between the temperature of external fresh air and the target temperature of indoor air, especially in winter or during seasonal transition, the introduced cold air needs to be additionally heated to meet the demand of the silkworm room, resulting in an increase in overall energy consumption and high system operation cost. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an energy-saving fresh air circulation method for artificial feed silkworm breeding, which solves the problem of the increase in overall energy consumption due to the large difference between the temperature of external fresh air and the target temperature of indoor air in the prior art.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: an energy-saving fresh air circulation method for artificial feed silkworm breeding, comprising the following steps: Introducing external air through a fresh air inlet and filtering and disinfecting the external air to generate clean fresh air; Using a heat exchanger to exchange heat between the clean fresh air and the discharged indoor air to preheat the clean fresh air; Monitoring the humidity and temperature of the silkworm breeding environment by an intelligent control unit and adjusting the ventilation volume according to the monitoring data to maintain the humidity of the silkworm breeding environment at 70%-80% and the temperature at 25°C-28°C; Introducing the preheated clean fresh air into the silkworm breeding room and discharging indoor air through an exhaust port, wherein the heat of the discharged indoor air is recovered by the heat exchanger.

[0006] By the above technical scheme, firstly, the external air is introduced through the set fresh air inlet, flows through the high-efficiency air filter and the ultraviolet disinfection device, and sequentially completes the particle filtering and microorganism inactivation treatment to form clean fresh air. The clean fresh air is guided through the pipeline system, enters the heat exchanger arranged in the air inlet passage, the heat exchanger is arranged before the clean fresh air enters the silkworm breeding room, and has a structure of a plate type or a tube type. One side of the heat exchanger is connected to the clean fresh air, and the other side is connected to the exhaust air from the silkworm breeding room. The two air flows do not directly contact each other, and only exchange heat through the heat transfer wall. The temperature of the indoor air discharged from the silkworm breeding room is 25°C to 28°C. After the indoor air enters the heat exchanger, the sensible heat of the indoor air is transferred to the clean fresh air at low temperature through the heat transfer surface, so that the temperature of the clean fresh air is increased before the clean fresh air enters the silkworm breeding room, and the replacement of part of the heating process is realized. Therefore, the dependence on the electric heating or air conditioning system in the subsequent process is reduced. Subsequently, the clean fresh air preheated by the heat exchanger is introduced into the silkworm breeding room and is delivered to each region by the air distribution device. The waste heat and moisture generated in the silkworm breeding process are discharged through the exhaust port arranged at the top or the side wall. The exhaust port is directly connected to the heat exchanger through the air pipe, so that the exhaust air completely passes through the heat exchanger to participate in heat recovery before leaving the silkworm breeding room. The heat energy in the exhaust air is utilized to preheat the inlet air before being directly discharged. Therefore, the energy consumption required to compensate for the temperature difference between the external air and the indoor environment is reduced, the heat energy is recycled, the overall energy use efficiency is improved, and the power demand of the system operation is reduced.

[0007] Preferably, the intelligent control unit comprises a humidity sensor and a variable speed fan, wherein: The humidity sensor monitors the humidity of the silkworm breeding environment in real time. When the humidity exceeds 80%, the variable speed fan operates at high speed to discharge moisture. When the humidity is less than 70%, the variable speed fan operates at low speed and cooperates with the humidification device to stabilize the humidity.

[0008] Preferably, the heat exchanger is a plate type heat exchanger or a tube type heat exchanger, which is used for heat exchange between the clean fresh air and the indoor air discharged.

[0009] Preferably, the fresh air inlet comprises a high-efficiency air filter and an ultraviolet disinfection device, wherein: The high-efficiency air filter is used to remove dust and microorganisms in the external air. The ultraviolet disinfection device is used to kill bacteria and viruses in the external air.

[0010] Preferably, the intelligent control unit further comprises a temperature sensor for monitoring the temperature of the silkworm breeding environment in real time, and maintaining the temperature at 25°C-28°C by adjusting the operating efficiency of the heat exchanger.

[0011] Preferably, the method further comprises uniformly distributing the clean fresh air to each area of the silkworm breeding room through air distribution pipes.

[0012] Preferably, the energy-saving fresh air circulation method for artificial feed silkworm breeding is applied to an artificial feed silkworm breeding environment, and the artificial feed comprises a mixture of mulberry leaf powder, soybean powder and vitamins.

[0013] Preferably, the air outlet is connected to the heat exchanger, and the discharged indoor air is directly discharged to the external environment after passing through the heat exchanger.

[0014] The energy-saving fresh air circulation system for artificial feed silkworm breeding comprises: A fresh air inlet is provided with a high-efficiency air filter and an ultraviolet disinfection device, and is used to generate clean fresh air. A heat exchanger is used to exchange heat between the clean fresh air and the discharged indoor air. An intelligent control unit comprises a humidity sensor, a temperature sensor and a variable speed fan, and is used to adjust the ventilation volume according to the monitoring data. An air outlet is used to discharge indoor air and transfer heat to the heat exchanger.

[0015] Preferably, the method further comprises air distribution pipes for uniformly distributing the clean fresh air to each area of the silkworm breeding room.

[0016] The present application provides an energy-saving fresh air circulation method for artificial feed silkworm breeding. The present application has the following beneficial effects: 1. The present application sets a heat exchanger between the fresh air channel and the exhaust air channel, so that the discharged indoor air exchanges heat with the clean fresh air about to enter, the clean fresh air is preheated before entering the silkworm room, which can effectively reduce the heating energy consumption and reduce the load of the temperature control system, thereby achieving the purpose of energy saving and improving the energy utilization efficiency.

[0017] 2. The present application sets a humidity sensor and a temperature sensor to collect the humidity and temperature parameters in the silkworm breeding room in real time, and drives a variable speed fan through an intelligent control unit to dynamically adjust the ventilation volume, so that the environmental humidity is stably controlled at 70% to 80%, and the temperature is maintained at 25°C to 28°C. Through the closed-loop adjustment mechanism, the accuracy and response speed of environmental control can be improved.

[0018] 3. The external fresh air passes through the high-efficiency air filter and the ultraviolet disinfection device in sequence before entering the silkworm room, which can effectively remove particulate matter, microorganisms, bacteria and viruses, improve air cleanliness, and reduce the risk of pathogen entry. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The method flowchart of the energy-saving fresh air circulation method for artificial feed silkworm breeding of the present application; Figure 2 Schematic diagram of air exchange process of the energy-saving fresh air circulation method for artificial feed silkworm breeding according to the present application; Figure 3 Schematic diagram of intelligent control unit connection of the energy-saving fresh air circulation method for artificial feed silkworm breeding according to the present application; Figure 4 Schematic diagram of air distribution pipeline layout of the energy-saving fresh air circulation method for artificial feed silkworm breeding according to the present application; Figure 5 Schematic diagram of fresh air inlet filtration and disinfection of the energy-saving fresh air circulation method for artificial feed silkworm breeding according to the present application; Figure 6 Schematic diagram of exhaust outlet and heat exchanger connection of the energy-saving fresh air circulation method for artificial feed silkworm breeding according to the present application. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to the drawings of the present application Figure 1 The energy-saving fresh air circulation method for artificial feed silkworm breeding according to the embodiments of the present application comprises the following steps: External air is introduced through the fresh air inlet, and the external air is filtered and disinfected to generate clean fresh air; The clean fresh air and the discharged indoor air are subjected to heat exchange by the heat exchanger to preheat the clean fresh air; The humidity and temperature of the silkworm breeding environment are monitored by the intelligent control unit, and the ventilation volume is adjusted according to the monitoring data to maintain the humidity of the silkworm breeding environment at 70% to 80% and the temperature at 25°C to 28°C; The preheated clean fresh air is introduced into the silkworm breeding room, and the indoor air is discharged through the exhaust outlet, wherein the heat of the discharged indoor air is recovered by the heat exchanger.

[0022] Specifically, external air is introduced through a fresh air inlet, and the external air is filtered and disinfected to generate clean fresh air. The external air first passes through a high-efficiency air filter to remove particulate matter and microorganisms, and then passes through a UV disinfection device for sterilization treatment to obtain air meeting the cleanliness requirements. The clean fresh air exchanges heat with the discharged indoor air in a heat exchanger, and the clean fresh air is preheated by the heat exchanger. The heat exchanger is a plate heat exchanger or a tube heat exchanger. The heat exchanger transfers energy through a heat transfer medium, so that the temperature of the fresh air approaches the indoor environment temperature, reducing heating or refrigeration energy consumption. The preheated clean fresh air enters the silkworm rearing room and is delivered to each area in the silkworm rearing room through an air distribution pipeline. The layout of the air distribution pipeline ensures that the fresh air can cover the entire silkworm room, avoiding local temperature or humidity differences. The humidity and temperature parameters of the silkworm room environment are monitored in real time by the intelligent control unit. The humidity is controlled between 70% and 80%, and the temperature is controlled between 25°C and 28°C. The intelligent control unit includes a humidity sensor and a temperature sensor. The humidity sensor output signal is , the temperature sensor output signal is , the upper limit of the humidity is set to , and the lower limit is , the upper limit of the temperature is set to , and the lower limit is . The ventilation volume is adjusted by a variable speed fan. The fan speed control signal is , When increases to improve the ventilation rate and reduce humidity. When , decreases, and the humidification device is started to increase humidity. When , increase and improve the ventilation efficiency to discharge heat. When , reduce , and adjust the heat exchange efficiency of the heat exchanger to increase the indoor temperature. The ventilation volume adjustment formula is:

[0023] wherein, is the reference speed is the target humidity set value, is the target temperature set value, are the humidity and temperature adjustment coefficients, respectively, which are pre-set according to the silkworm room area and air volume demand.

[0024] The above controls enable continuous supply of clean fresh air, heat recovery, and stable control of indoor humidity and temperature. The exhaust vent is used to exhaust indoor air. After passing through the heat exchanger, the exhaust air transfers heat to the incoming clean fresh air, reducing energy loss. The fresh air inlet, heat exchanger, intelligent control unit, air distribution duct, and exhaust vent are physically connected by an air channel. The airflow is driven by the pressure difference between the variable speed fan and the ventilation duct.

[0025] Please see the appendix Figure 3 The intelligent control unit includes a humidity sensor and a variable speed fan, wherein: A humidity sensor monitors the humidity of the silkworm rearing environment in real time; When the humidity exceeds 80%, the variable speed fan runs at an accelerated speed to expel moisture; When the humidity is below 70%, the variable speed fan slows down and works with the humidification equipment to stabilize the humidity.

[0026] Specifically, humidity and temperature sensors are installed in the center and several corner areas of the silkworm rearing room, respectively, to monitor the overall and localized environmental humidity and temperature in real time. The output signal of the humidity sensor is... The output signal of the temperature sensor is When the humidity sensor detects the humidity value Exceed At this time, the intelligent control unit sends a control signal to control the speed of the variable speed fan. Increased humidity to accelerate indoor air exchange and expel excess moisture. Once the humidity drops to the target range, the intelligent control unit will... Adjust to baseline value When the humidity sensor detects the humidity value Below At this time, the intelligent control unit controls the variable speed fan to decelerate and simultaneously starts the humidification equipment to increase the air humidity to the target range. The fan speed adjustment formula is:

[0027] in, As the reference speed, The target humidity value, This is the humidity adjustment coefficient, and its value is set according to the actual fan power and the volume of the silkworm rearing room.

[0028] The intelligent control unit uses a closed-loop control method to adjust the data in real time based on sensor feedback. Value adjustment The system ensures that the indoor humidity is maintained between 70% and 80%, meeting the humidity requirements for silkworm rearing. All control logic is implemented by a microcontroller, which is connected to the sensors and variable speed fan via wired or wireless signals. The control program is pre-installed in the controller's memory and can be directly called and executed without external intervention.

[0029] Please refer to the attached Figure 5 and attached Figure 6 The heat exchanger is a plate heat exchanger or a tube heat exchanger, which is used for heat exchange between clean fresh air and discharged indoor air.

[0030] Specifically, the heat exchanger is used for heat exchange between clean fresh air and discharged indoor air to recover heat energy in the exhaust air and reduce the energy consumption required for fresh air treatment. The plate heat exchanger is composed of multiple layers of parallel metal plates, and an air passage is formed between each two plates. Clean fresh air and exhaust air flow in opposite directions or cross each other in adjacent passages to achieve heat transfer. The tube heat exchanger is composed of multiple parallel heat exchange tubes, clean fresh air flows through the heat exchange tubes, and exhaust air flows through the outside of the heat exchange tubes to achieve heat exchange through a heat conduction layer. The effective heat exchange area of the heat exchanger is designed according to the volume and ventilation demand of the silkworm rearing room. The heat exchange efficiency is controlled by adjusting the air flow rate and the proportion of the heat exchange area in the heat exchanger. The inlet and outlet on both sides of the heat exchanger are physically connected to the fresh air inlet and the exhaust air outlet, respectively, to form a closed air path to prevent leakage and external contaminated gas from entering. Through the above structure, the clean fresh air is heated by the discharged indoor air before entering the silkworm rearing room, so that its temperature approaches the set temperature range of 25°C to 28°C in the silkworm room, reducing the energy consumption of heating equipment and stabilizing the indoor environment temperature.

[0031] The heat balance calculation formula in the heat exchange process is:

[0032] Wherein, is the heat exchange amount, unit: Joule, is the air mass flow rate, unit: kilogram , is the specific heat capacity of air, unit: kilojoule / kilogram degree, the value is about 1.005, is the air temperature difference, unit: Celsius.

[0033] Please refer to the attached Figure 2 The fresh air inlet includes a high-efficiency air filter and an ultraviolet disinfection device, wherein: The high-efficiency air filter is used to remove dust and microorganisms in the external air; The ultraviolet disinfection device is used to kill bacteria and viruses in the external air.

[0034] Specifically, the high-efficiency air filter and the ultraviolet disinfection device are connected in sequence for processing the externally introduced air, the high-efficiency air filter is used for removing particulate matters and microorganisms in the external air, the ultraviolet disinfection device is arranged downstream of the high-efficiency air filter, the lamp power is designed according to the air duct cross-sectional area and the flow rate, the length of the ultraviolet disinfection area is determined according to the designed wind speed, the high-efficiency air filter shell is made of corrosion-resistant metal or high-strength plastic and is sealingly connected with the air inlet channel to prevent unfiltered air from entering the subsequent system, the ultraviolet disinfection device is installed in the closed air duct, through the sequential configuration of the high-efficiency air filter and the ultraviolet disinfection device, bacteria, viruses and particulate matters in the external air are effectively removed before entering the silkworm room, the air cleanliness entering the silkworm room is ensured to meet the biological safety requirements, the new air inlet is connected with the heat exchanger inlet as a whole to form a closed pipeline system, and the air is directly sent to the heat exchanger for preheating after being filtered and disinfected, without mixing of external air, and all connection parts are fixed by flanges or welding.

[0035] Please refer to the attached Figure 3 The intelligent control unit further comprises a temperature sensor for monitoring the temperature of the silkworm breeding environment in real time and maintaining the temperature at 25°C-28°C by adjusting the operating efficiency of the heat exchanger.

[0036] Specifically, the operating efficiency adjustment of the heat exchanger is realized by changing the air flow ratio and flow rate inside and outside the heat exchanger, and the heat exchange efficiency is calculated by the following formula:

[0037] Among them, is the initial temperature of the new air entering the heat exchanger, is the temperature of the new air after the heat exchanger, is the temperature of the exhaust air, the intelligent control unit dynamically calculates the required according to the feedback value of the temperature sensor , and the required heat exchange efficiency is realized by adjusting the opening degree of the damper, the air speed control valve and the angle of the guide plate inside the heat exchanger, all the adjustment processes are automatically executed by the control program, the control program is embedded in the microcontroller, the heat exchange parameters are continuously corrected by the closed-loop feedback logic, through the accurate control of the temperature and the adjustment of the heat exchange efficiency, the temperature of the silkworm room is stably maintained between and , meeting the requirements of artificial silkworm breeding on the temperature environment.

[0038] Please refer to the attached Figure 4 It also includes uniformly distributing the clean fresh air to each area of the silkworm room through the air distribution pipeline.

[0039] Specifically, the preheated clean fresh air is evenly distributed to each area of the silkworm rearing room through the air distribution pipeline to ensure uniform airflow distribution in the room and avoid local temperature and humidity deviation. The air distribution pipeline is composed of a main air pipe and a plurality of branch air pipes. The branch air pipes branch from the main air pipe and are distributed at the top or sidewall of the silkworm rearing room. An adjustable air outlet is arranged at the end of each branch air pipe. The pipeline and the outlet of the heat exchanger are connected by flanges to ensure the air tightness of the connection. The pipeline and the silkworm rearing room building structure are fixed by fixing supports. During air distribution, the outlet air temperature is maintained at 25°C to 28°C, and the humidity is controlled at 70% to 80%. The multi-point distribution and uniform air supply design effectively reduces airflow short circuiting and improves air exchange efficiency.

[0040] Please refer to the attached drawings Figure 1 The energy-saving fresh air circulation method for artificial feed silkworm rearing is applied to the artificial feed silkworm rearing environment. The artificial feed includes a mixture of mulberry leaf powder, soybean powder and vitamins.

[0041] Specifically, the artificial feed is in the form of powder or granules, and the moisture content is 10% to 15%. In the silkworm rearing room, the feed is easily affected by the humidity in the environment. If the humidity is too high, the feed is easy to cake or mildew. If the humidity is too low, the feed is easy to powder and cause dust, affecting the health of the silkworm body surface and respiratory tract. Through the above-mentioned energy-saving fresh air circulation method, the humidity in the silkworm rearing room is controlled within the range of 70% to 80%, which can effectively prevent the feed from caking due to moisture absorption and ensure the stability of the physical state of the feed. At the same time, the temperature is maintained at 25°C to 28°C, which is helpful for the normal feeding and growth and development of silkworms. The fresh air is filtered by a high-efficiency air filter and disinfected by a UV disinfection device to remove microorganisms and dust in the external air. The air entering the silkworm rearing room will not introduce external pathogens, improving the safety of the feed and silkworm body. The clean fresh air is evenly distributed to each area of the silkworm rearing room by the air distribution pipeline, so that the air temperature and humidity conditions in the feed placement area remain consistent, preventing local humidity fluctuations from affecting the feed and silkworms. The fresh air is preheated by a heat exchanger to reduce the demand for additional energy and avoid direct entry of cold air into the silkworm rearing room, which can cause temperature fluctuations and prevent the silkworm population from experiencing growth stress. Combined with the characteristics of artificial feed, the stable temperature and humidity environment enhances the palatability and utilization rate of the feed, promotes the growth of the silkworm body, and ensures the sustainability and safety of feed utilization.

[0042] Please refer to the attached drawings Figure 6 The exhaust outlet is connected with the heat exchanger, and the indoor air discharged through the heat exchanger is directly discharged to the external environment.

[0043] Specifically, the exhaust outlet is arranged at the top of the silkworm room or the high position of the side wall, a backflow prevention check valve is arranged at the exhaust outlet to prevent external airflow from backflowing, the exhaust outlet is connected with the heat exchanger through a sealed air pipe, an external surface is provided with a heat preservation layer, after the exhaust airflow enters the heat exchanger, the exhaust airflow exchanges heat with the clean fresh air in the heat exchange unit, a sound reduction device is arranged at the end of the exhaust outlet to ensure that the silkworm raising environment and the surrounding environment are quiet, after the exhaust airflow completes heat recovery, the exhaust airflow is discharged to a high position outside through a vertical air duct, the height of the exhaust outlet is higher than the ground by 3 meters to prevent the exhaust airflow from affecting the surrounding environment or being sucked into the new air inlet again, the heat exchanger and the exhaust system as a whole are connected in a sealed manner, flanges are used at each connection node to fix, air tightness is ensured, and heat loss and external pollutants are prevented from entering.

[0044] Please refer to the attached drawings Figure 2 , the energy-saving fresh air circulation system for artificial silkworm raising includes: a fresh air inlet, which is provided with a high-efficiency air filter and an ultraviolet disinfection device, and is used to generate clean fresh air; a heat exchanger, which is used to exchange heat between the clean fresh air and the discharged indoor air; an intelligent control unit, which includes a humidity sensor, a temperature sensor and a variable speed fan, and is used to adjust the ventilation volume according to the monitoring data; an exhaust outlet, which is used to discharge the indoor air and transfer heat to the heat exchanger.

[0045] It also includes an air distribution pipeline, which is used to uniformly distribute the clean fresh air to each area of the silkworm room.

[0046] Specifically, the fresh air inlet is configured with a high-efficiency air filter and a UV disinfection device for particle filtration and pathogen inactivation treatment of external air. The high-efficiency air filter is installed at the front end of the air duct, and the UV disinfection device is located downstream of the high-efficiency air filter, which is sealingly connected with the main air inlet pipeline as a whole. The filtered air directly enters the heat exchanger to ensure clean air into the cocoon room. The heat exchanger is used for heat recovery of exhaust air, and the heat exchanger structure is plate type or tube type, which connects the clean fresh air pipeline and the exhaust air duct to realize heat transfer, increase the temperature of the entering air, and reduce the energy consumption required for indoor temperature regulation. The intelligent control unit includes a humidity sensor, a temperature sensor and a variable speed fan. The humidity sensor and the temperature sensor are arranged in the center of the cocoon room and in each corner, respectively, to monitor the environmental parameters in real time. The variable speed fan is installed at the fresh air inlet and the exhaust port, and automatically adjusts the speed according to the sensor signal to realize dynamic adjustment of the air exchange amount and the circulation frequency. The air distribution pipeline is connected with the heat exchanger outlet to transport the preheated clean fresh air to multiple areas inside the cocoon room to ensure uniform distribution of indoor air. The air distribution pipeline system includes a main air pipe and a branch air pipe, and the end is provided with an adjustable air outlet to meet the air supply requirements of different areas. The exhaust port is located at the top of the cocoon room or the high side wall, connected to the heat exchanger, and directly discharged outward after heat recovery, and the exhaust height is designed to prevent waste gas from flowing back into the system.

[0047] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving fresh air circulation method for silkworm rearing with artificial feed, characterized in that, Includes the following steps: Outside air is introduced through a fresh air inlet, and the outside air is filtered and disinfected to generate clean fresh air; A heat exchanger is used to exchange heat between the clean fresh air and the exhaust indoor air to preheat the clean fresh air; The intelligent control unit monitors the humidity and temperature of the silkworm rearing environment and adjusts the ventilation volume according to the monitoring data to maintain the humidity of the silkworm rearing environment at 70% to 80% and the temperature at 25°C to 28°C. Preheated clean fresh air is introduced into the silkworm rearing room and exhausted through the exhaust vent, where the heat of the exhausted indoor air is recovered by the heat exchanger.

2. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The intelligent control unit includes a humidity sensor and a variable speed fan, wherein: The humidity sensor monitors the humidity of the silkworm rearing environment in real time; When the humidity exceeds 80%, the variable speed fan accelerates to expel moisture; When the humidity is below 70%, the variable speed fan slows down and works with the humidification equipment to stabilize the humidity.

3. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The heat exchanger is a plate heat exchanger or a tubular heat exchanger, used to exchange heat between the clean fresh air and the exhaust indoor air.

4. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The fresh air inlet includes a high-efficiency air filter and an ultraviolet disinfection device, wherein: The high-efficiency air filter is used to remove dust and microorganisms from the outside air; The ultraviolet disinfection equipment is used to kill bacteria and viruses in the outside air.

5. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The intelligent control unit further includes a temperature sensor for real-time monitoring of the temperature of the silkworm rearing environment and for maintaining the temperature between 25°C and 28°C by adjusting the operating efficiency of the heat exchanger.

6. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, It also includes the even distribution of the clean fresh air to various areas of the silkworm rearing room through air distribution ducts.

7. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The energy-saving fresh air circulation method for artificial feed silkworm rearing is applied in an artificial feed silkworm rearing environment, wherein the artificial feed includes a mixture of mulberry leaf powder, soybean powder and vitamins.

8. The energy-saving fresh air circulation method for silkworm rearing with artificial feed according to claim 1, characterized in that, The exhaust vent is connected to the heat exchanger, and the exhaust air from the room is directly discharged to the external environment after passing through the heat exchanger.

9. An energy-saving fresh air circulation system for silkworm rearing using artificial feed, characterized in that: An energy-saving fresh air circulation method for silkworm rearing with artificial feed as described in any one of claims 1-8 includes: The fresh air inlet is equipped with a high-efficiency air filter and ultraviolet disinfection equipment to generate clean fresh air; A heat exchanger is used to exchange heat between the clean fresh air and the exhaust indoor air; The intelligent control unit, including a humidity sensor, a temperature sensor, and a variable-speed fan, is used to adjust the ventilation volume based on monitoring data; An exhaust vent is used to exhaust indoor air and transfer heat to the heat exchanger.

10. The energy-saving fresh air circulation system for artificial feed silkworm rearing according to claim 9, characterized in that, It also includes air distribution ducts for evenly distributing the clean fresh air to various areas of the silkworm rearing room.

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