CN201752201U - Miniature vegetable factory - Google Patents

Abstract

The utility model relates to a miniature vegetable factory, which belongs to vegetable production devices in the field of agricultural machinery. The miniature vegetable factory comprises a cabinet, a water culture device, an automatic nutrient solution circulating system, an air circulating system, a manual light filling system and an intelligent control system. In a closed environment, various environment factors can be controlled by different environment control systems, so that plants can grow in the optimum environmental condition, environmental conditions including light illumination, temperature, humidity, moisture, nutrition, CO2 and the like can be most suitable for plant growth, and vegetables growing in the vegetable factory are strong, high in yield and fine in quality. The miniature vegetable factory realizes intelligent control and automatic management, reduces labor intensity and labor time greatly, guarantees health and nutrient food and drinks for family life in the future, is an essential article for comfortable and convenient life of modern families, and can also be used as a greening ornament for family life, an air purifier, a natural oxygen bar and the like.

Description

A micro vegetable factory

technical field

The utility model relates to a miniature vegetable factory, in particular to a family-used miniature vegetable production factory, which belongs to the vegetable production device in the field of agricultural machinery.

Background technique

With the gradual improvement of people's living standards and changes in food demand, more and more attention has been paid to healthy, green, environmentally friendly, and convenient lifestyles. Hygienic, nutritious, and healthy foods are becoming more and more popular among people, among which green is pollution-free. , Fresh and clean vegetable products are particularly important to people's modern life. And how to produce this vegetable quickly has become an important topic that people pay attention to.

The plant factory is the highest state of plant cultivation, it provides the best environment for the growth and development of plants, integrates fully automatic and fully intelligent environment simulation technology to create the best artificial environment for the growth and development of plants, it is completely controllable A production mode that can be adjusted and managed according to human will. It is the most intensive agricultural production method. It adopts a production mode of complete factory-like process operation, avoids all interference from external climatic factors, and realizes accurate simulation of the cultivation environment. The vegetables produced are of high quality and good yield. It has incomparable advantages over the traditional cultivation mode.

Utility model content

The purpose of this utility model is to provide a miniature vegetable factory. The miniature vegetable factory of this utility model is a kind of miniature plant factory developed for families. It adopts a fully enclosed intelligent environment control system, which is exquisite and beautiful, convenient and practical, and intelligently controlled and managed. convenient. It can not only meet people's basic needs for vegetable products in daily life, but also can be used as green decorations, air purifiers, and natural oxygen bars in family life to achieve low-carbon, intelligent, environmentally friendly, and healthy life. In addition, this family vegetable factory can be widely used in areas with harsh climates that are not suitable for plant growth, such as desertification areas, ocean ships, and Arctic and Antarctic areas, so as to meet the needs of special groups and solve the problem of human survival on non-arable land. make a contribution.

For realizing the purpose of this utility model, take following technical scheme:

A micro-vegetable factory is characterized in that it includes a cabinet body, and a hydroponic cultivation device, an automatic nutrient solution circulation system, an air circulation system, an artificial light supplement system and an intelligent control system are arranged in the cabinet body.

A preferred technical solution is characterized in that: the front of the cabinet is composed of upper, middle and lower parts, the back of the cabinet has a mezzanine, and the bottom of the cabinet is provided with wheels.

On the top of the front of the cabinet, a PLC (programmable logic controller) is installed inside, a man-machine interface is arranged on one side of the surface, and a maintenance port is provided on the other side, and the maintenance port is fixed and closed with a steel plate with screws.

The middle part of the front of the cabinet is a cultivation chamber, which has three doors that are pulled outwards. The cultivation room is equipped with a hydroponic cultivation device and an artificial lighting system.

The lower part of the front of the cabinet is equipped with an air-conditioning system, a nutrient solution tank and a water pump, and has three outwardly drawn doors.

The interlayer of the cabinet body is provided with a return air duct, an air inlet duct, a heat dissipation air duct, a liquid supply pipe and a liquid return pipe, and an air outlet is provided on the top of the interlayer, and the thickness of the interlayer is 10cm.

A preferred technical solution is characterized in that: the hydroponic cultivation device includes a hydroponic cultivation tank and a planting cover plate, and the hydroponic cultivation tank is respectively provided with a liquid supply hole and a liquid return hole on the side, and a liquid return hole on the bottom surface There are liquid drainage holes on the top, and the planting cover plate is provided with planting holes, which are vertically placed on the hydroponic cultivation tank.

The hydroponic cultivation groove is 10cm deep, the longitudinal length is 50cm, and the transverse length is 180cm. The apertures of the liquid supply holes and liquid return holes are 3-8cm, and the apertures of the liquid drainage holes are 3-6cm.

The longitudinal length of the planting cover plate is 51 cm, the transverse length is 20 cm, and the vertical length is 2.5 cm at intervals of 10 cm. There are 2.5 cm planting holes, and 9 planting cover plates are placed on each hydroponic cultivation tank.

The hydroponic cultivation tank is made of stainless steel or PVC material, and the planting cover plate is made of high-density foam material.

A preferred technical solution is characterized in that: the nutrient solution automatic circulation system includes a hydroponic cultivation tank, a nutrient solution tank, a water pump, a liquid supply pipe, a liquid return pipe, a detector, PLC, an automatic liquid distribution system and a nutrient solution The liquid discharge pipeline, the water pump is placed in the nutrient solution tank, the bottom of the liquid supply pipe is connected to the water pump, the nutrient solution flows into the hydroponic cultivation tank through the liquid supply pipe, and then flows back to the nutrient solution tank through the liquid return pipe, automatic liquid distribution system The pipeline is connected with the nutrient solution tank, the forced discharge pipeline is connected with the liquid supply pipe, and a forced discharge valve is installed on it.

The automatic liquid distribution system includes a liquid distribution tank and a metering pump, the liquid distribution tank is connected to the metering pump through a pipeline, and the dosage pump is connected to the nutrient solution tank through a pipeline. The nutrient solution can be automatically prepared.

A liquid supply valve is installed on the liquid supply pipe. The flow rate of the liquid supply can be adjusted.

The nutrient solution automatic circulation system also includes a stirring pipeline, one end of which is connected to a liquid supply pipe close to the nutrient solution tank, and the other end is connected to the nutrient solution tank, and a stirring valve is installed on the stirring pipeline.

The nutrient solution automatic circulation system also includes a water supply pipeline, the water supply pipeline is connected with the nutrient solution tank, and a water supply valve is installed on it.

The detector can monitor the pH, EC, dissolved oxygen, liquid level and other indicators of the nutrient solution in the tank in real time, and transmit various monitoring data to the PLC, and control the automatic liquid dosing system through the PLC to realize the adjustment of various parameters , to ensure that various parameters meet the needs of vegetable growth and development.

A preferred technical solution is characterized in that: the air circulation system includes the internal air circulation system of the cultivation room and the air circulation system between the cultivation room and the outside world, the internal air circulation system includes an air duct and an air conditioning system, and the air duct is connected to the air conditioning system Communication, the cultivation room and the external air circulation system include air intake holes, air outlet holes and cooling air ducts.

The air ducts are distributed in the back interlayer of the micro-vegetable factory cabinet, and there are three air ducts, the air duct in the middle is the air inlet duct, and the air ducts on both sides are the return air ducts.

A filter screen is installed on the air inlet duct, and the top of the air inlet duct is connected with the fan.

The air-conditioning system includes a blower fan and a compressor unit, which are located in the lower part of the cabinet of the micro-vegetable factory.

The air inlets are distributed on the side of the cabinet of the miniature vegetable factory, and the outlets are distributed on the top of the cabinet of the miniature vegetable factory, and the diameters of the outlets and the inlets are 3-6cm.

A preferred technical solution is characterized in that: the artificial light supplement system includes a plant growth light source, a light detector and a PLC, and the plant growth light source is installed on the top of each layer of the cultivation room in the micro-vegetable factory, and the plant growth light source Evenly spaced.

The plant growth light sources are LED plant growth lamps and fluorescent lamps, the LED plant growth lamps and fluorescent lamps are alternately arranged horizontally or vertically, and the distance between the lamp tubes is 8-12cm.

On the upper part of the two sides of the cultivation room, at the same height as the plant growth light source, heat dissipation holes for the light source are arranged.

The distance between the heat dissipation holes is 6-10cm, and the diameter of the heat dissipation holes is 4cm-6cm.

A light source heat isolation plate is arranged below the plant growth light source.

The light source heat isolation board is located 1-2 cm below the plant growth light source and is made of transparent acrylic board.

There is a light detector in the cultivation room of the micro-vegetable factory for vegetable growth. The light detector can collect information such as light intensity, light frequency, and light cycle of the light source during the process of supplementing light for the plants, and transmit this information to the micro-vegetables. In the PLC on the top of the factory, the PLC can adjust the indicators of the light source in real time according to the optimal light parameters set in advance according to the characteristics of plant growth, so that the various light indicators can meet the requirements of plant growth and development.

An intelligent control system for a micro-vegetable factory is characterized in that it includes a sensor, a PLC (programmable logic controller), a man-machine interface and an actuator, and the sensor, the man-machine interface and the actuator are respectively connected to the PLC.

The sensors include pH sensors, EC (conductivity) sensors, liquid level sensors, liquid temperature sensors, humidity sensors, temperature sensors, carbon dioxide sensors, light sensors and the like.

The human-computer interaction interface is an HMI (human-machine interface) display screen.

The executive mechanism includes a light supplement device, a liquid supply and return device, a water supply and drainage device, an environment control device and the like.

The intelligent control system also includes a camera and a monitor, and the camera is connected with the monitor through a network. The camera is installed in the cultivation room of the micro vegetable factory, and the remote monitoring is realized through the monitor.

Beneficial effects: the micro-vegetable production factory can be in a closed environment, through the regulation and control of various environmental factors by various environmental control systems, so that plants can grow under the most suitable environmental conditions, such as light, temperature, humidity, water, nutrition, CO ₂ And other environmental conditions have reached the most suitable state for plant growth, and the vegetables produced are strong, with high yield and good quality. In addition, vegetables grown in a confined space are completely isolated from the outside world during the growth process, which effectively prevents germs and greatly reduces the probability of pests and diseases. Therefore, the production of vegetables without pesticides can be achieved, so as to achieve pollution-free, Standards for the production of pollution-free green vegetables. In addition, this kind of airtight environment keeps vegetables from being affected by the external environment. Regardless of changes in external environmental conditions such as light, temperature, humidity, and CO ₂ caused by seasons and climates, the internal environmental conditions of the vegetable factory will not be changed, and plant growth The development will not be affected at all, and periodic continuous factory production can be realized.

In addition, this system realizes intelligent control and automatic management, which greatly reduces the labor force, labor intensity and labor time. It is the guarantee of healthy and nutritious diet for family life in the future, and it is a must for the comfortable and convenient life of modern families. It can also be used as a green decoration for family life, an air purifier, a natural oxygen bar, etc.

Combining the above factors, this family vegetable factory can meet the requirements of the most suitable growth and development environment for vegetables. Through convenient operation and intelligent control, it can produce fresh, green and pollution-free vegetables to meet the needs of the family's daily diet for vegetables.

The utility model will be further described below through the accompanying drawings and specific embodiments, but it does not mean that the protection scope of the utility model is limited.

Description of drawings

Fig. 1 is a structural schematic diagram of a micro-vegetable factory cabinet.

Fig. 2 is a schematic diagram of the internal structure of the micro-vegetable factory cabinet.

Fig. 3 is a schematic diagram of the interlayer structure of the micro-vegetable factory cabinet.

Detailed ways

The main structure of the family vegetable factory includes a cabinet, which is equipped with a hydroponic cultivation device, an automatic nutrient solution circulation system, an air circulation system, an artificial light supplement system and an intelligent control system.

Micro vegetable factory cabinet, length 180cm, width 70cm, height 225cm, the basic material is stainless steel. The structure of the micro-vegetable factory cabinet is shown in Figure 1, where 1 is the cultivation room, 2 is the glass door, 3 is the wheels, 4 is the human-computer interface, and 5 is the glass door handle. The bottom of the cabinet is provided with four freely sliding wheels 3 for easy movement. The front of the cabinet is composed of upper, middle and lower parts, and the back of the cabinet has a mezzanine. From the 200cm of the cabinet to the edge of the top of the cabinet is the upper part of the front of the cabinet. This part is 150mm in height and is made of stainless steel. PLC (programmable logic controller) is installed inside. There is a maintenance port on the side. The maintenance port is fixed and closed with steel plates and screws, and can be disassembled for easy maintenance. The area from 50cm up to 200cm from the cabinet is the middle part of the front of the cabinet. This part is the vegetable cultivation room 1. The interior is provided with two partitions up and down, and the cultivation room 1 is divided into upper, middle and lower layers. There are three outwardly drawn glass doors 2, the 5cm around each door is made of stainless steel, and the rest is made of glass, through which the growth of indoor plants can be directly observed. The left door can be opened to the left, and the middle door and the right door are opened left and right. Each glass door includes a glass door handle 5 . From the bottom edge of the cabinet on the top of the wheels to 50cm from the bottom of the cabinet is the lower part of the front of the cabinet. This part includes three doors that pull outwards. Each door is made of stainless steel. The left door can be pulled to the left. The doors are split left and right from the right door, and each door contains a handle. The air-conditioning system, nutrient solution tank and water pump are installed inside, and the condition of the air-conditioning system, nutrient solution tank and water pump can be checked by opening the door.

Each layer of cultivation room is equipped with hydroponic cultivation device and nutrient solution supply and return pipeline. The hydroponic cultivation device includes a hydroponic cultivation tank and a planting cover plate, and the hydroponic cultivation tank is connected with a nutrient solution tank through a liquid supply pipe and a liquid return pipe to realize automatic supply of nutrient solution. The hydroponic cultivation tank is 10cm deep, the longitudinal length is 53cm, and the horizontal length is 176cm; each layer of hydroponic cultivation tank is provided with a liquid supply hole and a liquid return hole with a diameter of 3cm on the right side, and the liquid supply hole is directly connected with the liquid supply pipe. The liquid return hole is directly connected with the liquid return pipe, so as to realize the supply and discharge of the nutrient solution. In addition, on the bottom side of the hydroponic cultivation tank, there is a drain hole with a diameter of 6 cm. During the plant cultivation process, the drain hole is blocked with a plug. In order to replace the nutrient solution of the cultivation tank and clean the cultivation tank, open the plug. , can realize forced discharge of liquid. The vertical length of the planting cover plate is 51cm, and the horizontal length is 20cm. Each planting cover plate is provided with a colonization hole with a diameter of 2.5cm at an interval of 10cm in the vertical direction. Nine planting cover plates can be placed vertically on each layer of hydroponic cultivation tank. Plant the plants directly in the planting hole. The material of the hydroponic cultivation tank is stainless steel or PVC material, and the material of the planting cover plate is high-density foam material.

The nutrient solution automatic circulation system of the micro-vegetable factory includes hydroponic cultivation tanks, nutrient solution tanks, water pumps, liquid supply pipes, liquid return pipes, detectors, PLC, automatic liquid distribution system and nutrient solution forced discharge pipelines, etc. It can realize the functions of automatic circulation supply of nutrient solution, automatic preparation of nutrient solution and automatic regulation of liquid level. The nutrient solution tank is located at the bottom of the micro-vegetable factory, the water pump is placed in the nutrient solution tank, and the liquid supply pipe and the liquid return pipe are arranged side by side longitudinally on the side of the interlayer of the cultivation room. The bottom end of the liquid supply pipe is connected to the water pump, and the other end is connected to the liquid supply hole on the hydroponic cultivation tank of each layer of cultivation room. The nutrient solution flows directly into the hydroponic cultivation tank of the plant cultivation room through the liquid supply pipe to realize the supply of plant nutrition. . One end of the liquid return pipe is connected to the liquid return hole on the hydroponic cultivation tank of each layer of cultivation room, and the bottom end is connected to the nutrient solution tank. When the liquid level exceeds a certain height, the excess nutrient solution directly flows back to the nutrient solution tank through the liquid return pipe, thereby Realize automatic return and circulation of nutrient solution. Each liquid supply pipe is equipped with a liquid supply valve, which can adjust the flow rate of the liquid supply. The liquid supply pipe and liquid return pipe adopt UPVC pipe. The automatic liquid distribution system is connected to the nutrient solution tank through pipelines. The automatic liquid distribution system includes a liquid distribution tank and a metering pump. The liquid distribution tank is connected to the metering pump through pipelines, and the dosage pump is connected to the nutrient solution tank through pipelines. The nutrient solution can be automatically prepared. The liquid distribution tanks are respectively equipped with liquid A, liquid B and liquid C. Each liquid distribution tank is connected to a metering pump, and the dosage pump is directly connected to the nutrient solution tank through a pipeline. The component solutions flow directly into the nutrient solution tank to realize the automatic preparation of nutrient solution. The system is provided with a forced discharge pipeline for nutrient solution, which is connected with a liquid supply pipe, and a forced discharge valve is installed on it. It can realize the forced discharge of nutrient solution. When the nutrient solution needs to be replaced, the forced discharge valve is opened to realize the forced discharge of the nutrient solution. The nutrient solution tank has a maximum level and a minimum level. When the nutrient solution level is higher than the maximum level, the system will forcibly discharge the nutrient solution. When the nutrient solution level is lower than the minimum level, the system will discharge the nutrient solution. Automatic replenishment. In addition, the system is also equipped with a stirring pipeline, one end of the stirring pipeline is connected to the liquid supply pipe close to the nutrient solution tank, and the other end is connected to the nutrient solution tank, and a stirring valve is installed on the stirring pipeline. When the stirring valve is opened, the prepared nutrient solution can be stirred to make the preparation of various nutrients uniform. The system is also provided with a water supply pipeline, which is connected with the nutrient solution tank, and a water supply valve is installed on it. The water supply pipeline is set at one end of the nutrient solution tank. By controlling the water supply valve, water can flow directly into the nutrient solution to achieve dilution of high-concentration nutrient solution.

The air circulation system of the micro-vegetable factory includes the internal air circulation system of the cultivation room and the external air circulation system of the cultivation room. The internal air circulation system includes the air duct and the air conditioning system. Air intake holes, air outlet holes and cooling air ducts. The air intake holes are distributed on the side of the cabinet of the micro vegetable factory, and the air outlet holes are distributed on the top of the cabinet of the micro vegetable factory. The diameter of the air inlet and outlet holes is 3-6cm, and the width of the cooling air duct is 5cm. There are three air ducts, the air duct in the middle is the air intake duct, and the air ducts on both sides are the air return duct. The size of each air intake duct and air return duct is: 31cm high and 15cm wide. The air-conditioning system includes fans and compressor units, located at the bottom of the cabinet of the microgreens factory. A filter is installed on the air inlet, and the top of the air inlet is connected to the fan to drive the air circulation in the cultivation room. Finally, the indoor air passes through the air outlet on the top of the vegetable factory to exchange and circulate with the outdoor air and discharge heat. The back lower part of the cabinet is provided with an air-conditioning air inlet and an air-conditioning return air outlet. A temperature detector is placed in each layer of cultivation room to set the appropriate plant growth temperature according to the growth characteristics of the plants. When the temperature of the cultivation room is not suitable for plant growth and development, the air conditioner will automatically start the heating or cooling unit, and the hot or cold air will be directly discharged from the bottom of the cabinet. It enters the air inlet channel, enters the top of the cabinet, and is driven by the fan. The hot or cold air circulates through the air ducts on both sides of the cabinet, thereby increasing or reducing the temperature of the cultivation room, so that the temperature of the cultivation room is suitable for plant growth and development. At the same time, the gas flows into the cultivation chamber through the air inlet, and flows out through the air outlet, realizing the gas exchange between the outdoor and the indoor, and ensuring good gas conditions for plant growth.

As shown in Fig. 2, it is a schematic diagram of the internal structure of the micro vegetable factory cabinet. Wherein 11 is a cabinet body, 12 is an air outlet, 13 is a man-machine interface, 14 is a hydroponic cultivation tank, 15 is an air duct, 16 is a nutrient solution tank, and 17 is an air conditioning system.

As shown in Fig. 3, it is a schematic diagram of the interlayer structure of the micro vegetable factory cabinet. Among them, 21 is the stainless steel plate on the back of the cabinet, 22 is the return air duct, 23 is the air intake duct, 24 is the air intake hole, 25 is the light source cooling air duct, 26 is the air conditioning system, 27 is the liquid supply pipe, and 28 is the liquid return pipe , 29 is the nutrient solution tank.

The artificial light supplement system includes a plant growth light source, a light detector and a PLC. The plant growth light source is installed on the top of each cultivation room in the micro vegetable factory, and the plant growth light sources are evenly spaced. Plant growth light sources include LED plant growth lamps and fluorescent lamps, arranged horizontally, with a total of 6 lamp tubes, including red LED plant growth lamps, blue LED plant growth lamps and ordinary fluorescent lamps, two for each, alternately staggered and evenly distributed , each lamp tube is 170cm long, and the distance between the lamp tubes is 10cm. On the upper part of the left and right sides of the cultivation room, at the same height as the lamp tubes of the LED plant growth lamp and the fluorescent lamp, there are 6 heat dissipation holes for the light source, and the hole spacing is average. The diameter of the hole is 10cm, and the diameter of the hole is 6cm. The light source is the process of supplementing light for plants, and part of the heat generated can be discharged through this hole to avoid excessive temperature in the cultivation room. At a distance of 1cm below the LED plant growth lamp and the fluorescent lamp, there is a heat isolation plate for the light source, which is 1.8cm long and 60cm wide. The heat isolation plate is made of transparent acrylic plate, which can well prevent the heat generated by the light source from being transmitted to the vegetables below. , so that the ambient temperature of plant growth is maintained in a relatively constant range. The light detector is placed in the cultivation room, and parameters such as light intensity, light quality, and photoperiod are set through an intelligent control system according to the characteristics of plant light requirements. The light detector can collect information such as light intensity, light frequency, and light cycle of the light source during the process of supplementing light for plants, and transmit this information to the PLC on the top of the micro-vegetable factory. When the light information parameters do not meet the plant growth characteristics set The optimal lighting parameters are determined in real time, and the PLC regulates the indicators of the light source to make the various lighting indicators suitable for plant growth and development requirements.

The intelligent control system of the micro-vegetable factory includes sensors, PLC (programmable logic controller), human-computer interaction interface and actuator, and the sensor, human-computer interaction interface and actuator are respectively connected with PLC. Sensors include pH sensors, EC (conductivity) sensors, liquid level sensors, humidity sensors, temperature sensors, carbon dioxide sensors, light sensors, and the like. The actuators include lighting supplementary devices, liquid supply and return, water supply and drainage devices, and environmental control devices. The intelligent control system can intelligently control various environmental factors in the micro vegetable factory. Sensors for various environmental factors can monitor pH, EC, liquid level, humidity, temperature, carbon dioxide, light, etc. in the micro-vegetable factory in real time, and convert the collected data into analog signals read by PLC, and then display them in real time to human on the machine interface. The HMI display screen is a touch screen, which displays real-time data and historical data on the touch screen. The system parameters suitable for plant growth and development can be set on the touch screen, and the PLC can reasonably process the collected data according to the set system parameters, and adjust and control the light supplement device, liquid supply and return, water supply and drainage devices, and environmental control devices. , so that various environmental parameters meet the requirements of plant growth and development, and realize the flexible adjustability of the system. In addition, a 360-degree camera probe is installed at the top corner of each cultivation room in the micro-vegetable factory, and the captured images are transmitted to the PC through the network, which can realize remote image transmission and monitor the vegetables in the micro-vegetable factory in real time through the remote PC. Growth status, real-time grasp of plant growth progress.

Claims (10)

1. A micro-vegetable factory, characterized in that: comprise a cabinet, hydroponic cultivation device, nutrient solution automatic circulation system, air circulation system, artificial light supplement system and intelligent control system are set in the cabinet. 2. The micro-vegetable factory according to claim 1, characterized in that: the front of the cabinet is composed of upper, middle and lower parts, the back of the cabinet has a mezzanine, and the bottom of the cabinet is provided with wheels. 3. The micro-vegetable factory according to claim 1, characterized in that: said hydroponic cultivation device comprises a hydroponic cultivation tank and a planting cover plate, and said hydroponic cultivation tank is respectively provided with liquid supply holes and The liquid return hole is provided with a liquid drainage hole on the bottom surface, and the planting cover plate is provided with a planting hole, which is vertically placed on the hydroponic cultivation tank. 4. The micro-vegetable factory according to claim 1, characterized in that: the nutrient solution automatic circulation system includes a hydroponic cultivation tank, a nutrient solution tank, a water pump, a liquid supply pipe, a liquid return pipe, a detector, a PLC, Automatic liquid distribution system and nutrient solution forced discharge pipeline, the water pump is placed in the nutrient solution tank, the bottom of the liquid supply pipe is connected to the water pump, the nutrient solution flows into the hydroponic cultivation tank through the liquid supply pipe, and then flows back to the nutrient solution through the liquid return pipe The automatic liquid distribution system is connected to the nutrient solution tank through pipelines, the forced discharge pipeline is connected to the liquid supply pipe, and the forced discharge valve is installed on it. 5. The micro-vegetable factory according to claim 4, characterized in that: the automatic circulation system of the nutrient solution also includes a stirring pipeline, one end of the stirring pipeline is connected to the liquid supply pipe close to the nutrient solution tank, and the other end is It is connected with the nutrient solution tank, and a stirring valve is installed on the stirring pipeline. 6. The micro-vegetable factory according to claim 4, characterized in that: the nutrient solution automatic circulation system further includes a water supply pipeline, the water supply pipeline is connected with the nutrient solution tank, and a water supply valve is installed on it. 7. The micro-vegetable factory according to claim 1, characterized in that: said air circulation system comprises a cultivation chamber internal air circulation system and a cultivation chamber and an external air circulation system, and the internal air circulation system comprises an air duct and an air conditioning system, The air duct is connected with the air-conditioning system, and the cultivation room and the external air circulation system include an air intake hole, an air outlet hole and a cooling air duct. 8. The micro-vegetable factory according to claim 1, characterized in that: the artificial light supplement system includes a plant growth light source, a light detector and a PLC, and the plant growth light source is installed in each layer of the cultivation room of the micro-vegetable factory The top of the plant growth light source is evenly spaced. 9. The micro-vegetable factory according to claim 1, characterized in that: the intelligent control system comprises a sensor, a PLC, a man-machine interface and an actuator, and the sensor, the man-machine interface and the actuator are respectively connected to the PLC. 10. The micro-vegetable factory according to claim 1, wherein the intelligent control system further includes a camera and a monitor, and the camera is connected to the monitor through a network.

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