A greenhouse temperature control system
Patent Information
- Application Number
- CN202522257143.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-24
AI Technical Summary
针对现有技术的不足，本申请提供了一种大棚温控系统，解决了温控系统大都存在部分缺陷，如调节精度不足、能耗高、缺乏对不同作物生长阶段的差异化温控策略等问题，难以兼顾能效与农艺需求的问题
1.本实用新型提供了一种大棚温控系统，通过轴流风机、光照传感器、温度传感器、控制箱、真空集热管、蓄热水箱、压缩机、冷凝器、蒸发器以及地源热泵的设置，使该装置能够对温度进行精准控制，并对水源进行循环利用，将太阳能与地源热泵进行多能互补，降低综合运行成本以及环境负荷，解决了温控系统大都存在部分缺陷，如调节精度不足、能耗高、缺乏对不同作物生长阶段的差异化温控策略等问题，难以兼顾能效与农艺需求的问题。
Smart Images
Figure CN224760869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of greenhouse temperature control, specifically a greenhouse temperature control system. Background Technology
[0002] With the continuous progress of society, traditional agricultural production models can no longer meet the needs of modern civilization, and new types of facility agriculture are gaining popularity among industry professionals. The so-called agricultural equipment mainly refers to greenhouse facilities, or greenhouses, which are not limited by time and space. They can provide a growing season and increase crop yields during seasons unsuitable for plant growth. Agricultural production can be carried out in special environments such as plateaus, deep mountains, and deserts, and are mostly used for the cultivation or seedling raising of warm-season vegetables, flowers, and trees during cold seasons.
[0003] A search revealed that there are various methods for controlling the temperature inside greenhouses in the existing technology, such as natural ventilation systems, hot water pipe heating, electric heaters, and intelligent control systems. However, most of these temperature control methods have some defects, such as insufficient adjustment accuracy, high energy consumption, and lack of differentiated temperature control strategies for different crop growth stages, making it difficult to balance energy efficiency and agronomic needs.
[0004] Therefore, those skilled in the art have provided a greenhouse temperature control system to solve the problems mentioned in the background art. Utility Model Content
[0005] 1. Technical problems to be solved To address the shortcomings of existing technologies, this application provides a greenhouse temperature control system that solves some of the defects that most temperature control systems have, such as insufficient adjustment accuracy, high energy consumption, lack of differentiated temperature control strategies for different crop growth stages, and difficulty in balancing energy efficiency and agronomic needs.
[0006] 2. Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A greenhouse temperature control system includes soil. Multiple supporting beams are mounted on top of the soil. Two crossbeams are fixedly connected to the inner side of each supporting beam, and a greenhouse cloth is fixedly connected to the outer side of each supporting beam. A fixed frame is fixedly connected between the two crossbeams. An axial flow fan is fixedly connected to the inside of the fixed frame through a through hole. A rubber sleeve is fixedly connected to the outer side of the air outlet of the axial flow fan. A guide shroud is fixedly connected to the end of the rubber sleeve away from the axial flow fan. A support frame is fixedly connected to the side of the fixed frame. A motor is fixedly connected to the inner side of the support frame. A light sensor is fixedly connected to the top of the fixed frame. A control box is fixedly connected to the top of the soil. A temperature sensor is fixedly connected to the side of the control box. Heat exchange tubes are installed inside the soil. A frame is fixedly connected to the top of the soil. Multiple vacuum heat collection tubes are fixedly connected to the inside of the frame. A hot water storage tank is fixedly connected to the top of the soil. A ground source heat pump is installed on the top of the soil. The ground source heat pump includes a compressor, a condenser, an evaporator, and an expansion valve. Through the above technical solution, the device can accurately control the temperature and recycle the water source. It can complement solar energy and ground source heat pumps, reduce the overall operating cost and environmental load, and solve the problems that most temperature control systems have, such as insufficient adjustment accuracy, high energy consumption, lack of differentiated temperature control strategies for different crop growth stages, and difficulty in taking into account both energy efficiency and agronomic needs.
[0007] Furthermore, two guide rings are fixedly connected to the bottom of the fixing frame, and a support rod is provided inside the guide ring. The support rod is fixedly connected to the flow guide shroud. Through the above technical solution, the guide ring can support the support rod, thereby reducing the weight pressure of the fairing on the external drive mechanism. The guide ring can also control the rotation angle of the fairing, so that the rotation angle of the fairing is ±30°.
[0008] Furthermore, rotating plates are rotatably connected to both sides of the fixed frame, and rotating rods are rotatably connected between the inner walls of both sides of the fixed frame. Two rotating plates are fixedly connected to both ends of the rotating rods, the output shaft of the motor is fixedly connected to one of the rotating plates, and a support rod is fixedly connected to the end of the rotating plate away from the rotating rod. Through the above technical solution, the rotating rod can connect two rotating plates, so that the two rotating plates can rotate synchronously, and the motor can provide power to the rotating plates to make them rotate.
[0009] Furthermore, the control box is equipped with a PLC controller, which is electrically connected to a light sensor, a temperature sensor, a compressor, a condenser, and an evaporator. Through the above technical solution, the control box is made of waterproof and dustproof material, and the PLC controller inside the control box can be connected to multiple electronic components to cooperate with each other, thereby controlling the temperature inside the greenhouse.
[0010] Furthermore, the heat exchange tube is located 1.5 meters underground in the soil, and the inclination angle of the frame is the local latitude +5°; Through the above technical solution, the tilting of the frame allows the vacuum collector tubes to have better contact with the sun, increasing the contact time with the sun and making full use of solar energy to heat the water source.
[0011] Furthermore, the multiple vacuum heat collection tubes are interconnected, and the top and bottom of one side of the hot water storage tank are connected to pipes. The two pipes on the side of the hot water storage tank are connected to one of the vacuum heat collection tubes. Through the above technical solution, the two pipes enable hot water to automatically enter the hot water storage tank, and cold water to enter the vacuum collector tube for heating, thereby completing the circulation of hot and cold water.
[0012] Furthermore, the hot water storage tank is connected to a ground source heat pump, the ground source heat pump is connected to a heat exchange pipe, and the heat exchange pipe is serpentine in shape. Through the above technical solutions, the hot water storage tank can reduce the heating pressure of the ground source heat pump, thereby making full use of renewable solar energy resources and reducing environmental consumption.
[0013] 3. Beneficial effects This utility model provides a greenhouse temperature control system. It has the following beneficial effects: 1. This utility model provides a greenhouse temperature control system. By incorporating an axial flow fan, a light sensor, a temperature sensor, a control box, a vacuum collector tube, a hot water storage tank, a compressor, a condenser, an evaporator, and a ground source heat pump, the system enables precise temperature control and water recycling. It combines solar energy and ground source heat pump for multi-energy complementarity, reducing overall operating costs and environmental impact. This system solves some of the shortcomings of most temperature control systems, such as insufficient adjustment accuracy, high energy consumption, lack of differentiated temperature control strategies for different crop growth stages, and difficulty in balancing energy efficiency and agronomic needs.
[0014] 2. This utility model provides a greenhouse temperature control system. By setting up a fixed frame, axial flow fan, motor, rotating plate, rotating rod, guide ring, air guide cover and rubber soft sleeve, the device can change the blowing direction of the airflow during use, so that the airflow can quickly fill the greenhouse, accelerate the exchange of hot and cold air inside the greenhouse, and avoid the problem of insufficient airflow and uneven temperature inside the greenhouse. Attached Figure Description
[0015] Figure 1This is an axial view schematic diagram of the present invention; Figure 2 This is a schematic axial sectional view of the present invention; Figure 3 This is an axial view schematic diagram of the heat exchange tube of this utility model; Figure 4 This is a schematic axial view of the axial flow fan of this utility model; Figure 5 This is a side-axis view of the axial flow fan of this utility model.
[0016] In the picture: 1. Soil; 2. Supporting beam; 3. Crossbeam; 4. Canopy; 5. Fixing frame; 6. Axial flow fan; 7. Rubber sleeve; 8. Flow guide; 9. Guide ring; 10. Support rod; 11. Support frame; 12. Motor; 13. Rotating plate; 14. Rotating rod; 15. Light sensor; 16. Control box; 17. Temperature sensor; 18. Heat exchanger tube; 19. Frame; 20. Vacuum collector tube; 21. Hot water storage tank; 22. Compressor; 23. Condenser; 24. Evaporator; 25. Ground source heat pump. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific implementation method 1: Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This embodiment of a greenhouse temperature control system includes soil 1, with multiple supporting beams 2 on the top of the soil 1. Two crossbeams 3 are fixedly connected to the inner side of each supporting beam 2, and a greenhouse cloth 4 is fixedly connected to the outer side of each supporting beam 2. A fixing frame 5 is fixedly connected between the two crossbeams 3. An axial flow fan 6 is fixedly connected to the inside of the fixing frame 5 through a hole. A rubber sleeve 7 is fixedly connected to the outer side of the air outlet of the axial flow fan 6. A guide hood 8 is fixedly connected to the end of the rubber sleeve 7 away from the axial flow fan 6. A support frame 11 is fixedly connected to the side of the fixing frame 5, and a motor 12 is fixedly connected to the inner side of the support frame 11. A light sensor 15 is fixedly connected to the top of the fixing frame 5. A control box 16 is fixedly connected to the top of the soil 1, and a temperature sensor 17 is fixedly connected to the side of the control box 16. A heat exchange pipe 18 is provided inside the soil 1. A frame 19 is fixedly connected to the top of the soil 1, and a fixed structure is installed inside the frame 19. Multiple vacuum collector tubes 20 are connected. A hot water storage tank 21 is fixedly connected to the top of the soil 1. A ground source heat pump 25 is installed on the top of the soil 1. The ground source heat pump 25 includes a compressor 22, a condenser 23, an evaporator 24, and an expansion valve. A PLC controller is installed inside the control box 16. The PLC controller inside the control box 16 is electrically connected to a light sensor 15, a temperature sensor 17, a compressor 22, a condenser 23, and an evaporator 24. The heat exchange tube 18 is located 1.5 meters underground in the soil 1. The inclination angle of the frame 19 is the local latitude +5°. Multiple vacuum collector tubes 20 are interconnected. Pipes are connected to the top and bottom of one side of the hot water storage tank 21. Two pipes on the side of the hot water storage tank 21 are connected to one of the vacuum collector tubes 20. The hot water storage tank 21 is connected to the ground source heat pump 25. The ground source heat pump 25 is connected to the heat exchange tube 18. The heat exchange tube 18 is serpentine in shape. Specific implementation method 2: Please see Figure 4 , Figure 5 In this embodiment, a greenhouse temperature control system has two guide rings 9 fixedly connected to the bottom of the fixed frame 5. The guide rings 9 have a support rod 10 inside, and the support rod 10 is fixedly connected to the flow guide shroud 8. Rotating plates 13 are rotatably connected to both sides of the fixed frame 5. Rotating rods 14 are rotatably connected between the inner walls of the two sides of the fixed frame 5. Two rotating plates 13 are fixedly connected to both ends of the rotating rod 14. The output shaft of the motor 12 is fixedly connected to one of the rotating plates 13. The end of the rotating plate 13 away from the rotating rod 14 is fixedly connected to the support rod 10.
[0020] This embodiment of a greenhouse temperature control system, through the arrangement of an axial flow fan 6, a light sensor 15, a temperature sensor 17, a control box 16, a vacuum collector tube 20, a hot water storage tank 21, a compressor 22, a condenser 23, an evaporator 24, and a ground source heat pump 25, enables the device to precisely control the temperature and recycle the water source. It achieves multi-energy complementarity between solar energy and the ground source heat pump 25, reducing overall operating costs and environmental impact. This system addresses some shortcomings of most temperature control systems, such as insufficient adjustment accuracy, high energy consumption, lack of differentiated temperature control strategies for different crop growth stages, and difficulty in balancing energy efficiency and agronomic needs. The installation of a fixed frame 5, an axial flow fan 6, a motor 12, a rotating plate 13, a rotating rod 14, a guide ring 9, a flow guide hood 8, and a rubber sleeve 7 allows the device to change the airflow direction during use, rapidly filling the greenhouse interior and accelerating the exchange of hot and cold air, thus avoiding problems such as insufficient airflow and uneven heating / cooling inside the greenhouse.
[0021] The working principle of the above embodiment is as follows: During use, when there is sufficient sunlight during the day, the vacuum collector tube 20 absorbs solar energy to heat the water inside. After the water in the vacuum collector tube 20 is heated, the hot water rises due to its lower density and enters the hot water storage tank 21 through the water pipe at the top of the tank. Meanwhile, the cooler water in the hot water storage tank 21 flows into the vacuum collector tube 20 through the water pipe at the bottom under the influence of gravity. This cycle continues, converting solar energy into heat energy and storing it in the hot water storage tank 21, thus completing the exchange of hot water. When the weather is hot during the day, it is necessary to lower the temperature inside the greenhouse. The temperature sensor 17 detects that the temperature is high, and then the PLC controller inside the control box 16 controls the ground source heat pump 25 through the temperature sensor 17. During cooling, the compressor 22 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous state, and then converts the high-temperature, high-pressure liquid refrigerant into a low-temperature, low-pressure liquid state through the expansion valve, and sends it into the... Inside the heat exchange tube 18, heat exchange occurs between the heat exchange tube 18 and the soil 1, achieving cooling inside the greenhouse. When the temperature is low and heating is required, the compressor 22 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous state and sends it into the buried heat exchange tube 18. The high-temperature, high-pressure refrigerant exchanges heat with the soil 1 in the heat exchange tube 18, thereby raising the temperature of the soil 1 and exchanging heat with the air inside the greenhouse, releasing heat. When the ground source heat pump 25 is in use, heat can be extracted from the built-in coil of the hot water storage tank 21, improving the overall heating efficiency. When the soil 1 is heated or cooled, the axial flow fan 6 draws air from inside the greenhouse to make the air flow. When the air flows, the motor 12 starts and rotates the two rotating plates 13 together through the rotating rod 14. After the rotating plates 13 rotate, the support rod 10 moves, thereby moving the guide hood 8. After the guide hood 8 moves, its air outlet changes, thereby blowing air in different directions, thus making the hot and cold air inside the greenhouse evenly exchanged and avoiding large temperature differences inside the greenhouse.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A greenhouse temperature control system, comprising soil (1), characterized in that: The top of the soil (1) is provided with multiple supporting beams (2). Two crossbeams (3) are fixedly connected to the inner side of the supporting beams (2). A tarpaulin (4) is fixedly connected to the outer side of the supporting beams (2). A fixing frame (5) is fixedly connected between the two crossbeams (3). An axial flow fan (6) is fixedly connected to the inside of the fixing frame (5). A rubber soft sleeve (7) is fixedly connected to the outer side of the air outlet of the axial flow fan (6). A guide hood (8) is fixedly connected to the end of the rubber soft sleeve (7) away from the axial flow fan (6). A support frame (11) is fixedly connected to the side of the fixing frame (5). A motor (12) is fixedly connected to the inner side of the support frame (11). A light sensor (15) is fixedly connected to the top of the fixed frame (5), a control box (16) is fixedly connected to the top of the soil (1), a temperature sensor (17) is fixedly connected to the side of the control box (16), a heat exchange tube (18) is provided inside the soil (1), a frame (19) is fixedly connected to the top of the soil (1), a plurality of vacuum heat collection tubes (20) are fixedly connected inside the frame (19), a hot water storage tank (21) is fixedly connected to the top of the soil (1), and a ground source heat pump (25) is provided on the top of the soil (1). The ground source heat pump (25) includes a compressor (22), a condenser (23), an evaporator (24), and an expansion valve.
2. The greenhouse temperature control system according to claim 1, characterized in that: The bottom of the fixed frame (5) is fixedly connected to two guide rings (9), and the inside of the guide rings (9) is provided with a support rod (10), and the support rod (10) is fixedly connected to the flow guide (8).
3. The greenhouse temperature control system according to claim 2, characterized in that: The fixed frame (5) is rotatably connected to two rotating plates (13) on both sides. A rotating rod (14) is rotatably connected between the inner walls of the two sides of the fixed frame (5). Two rotating plates (13) are fixedly connected to the two ends of the rotating rod (14). The output shaft of the motor (12) is fixedly connected to one of the rotating plates (13). A support rod (10) is fixedly connected to the end of the rotating plate (13) away from the rotating rod (14).
4. The greenhouse temperature control system according to claim 1, characterized in that: The control box (16) is equipped with a PLC controller, which is electrically connected to a light sensor (15), a temperature sensor (17), a compressor (22), a condenser (23), and an evaporator (24).
5. A greenhouse temperature control system according to claim 1, characterized in that: The heat exchange tube (18) is located 1.5 meters underground in the soil (1), and the frame (19) is tilted at the local latitude +5°.
6. A greenhouse temperature control system according to claim 1, characterized in that: Multiple vacuum heat collection tubes (20) are interconnected. The top and bottom of one side of the hot water storage tank (21) are connected by pipes. Two pipes on the side of the hot water storage tank (21) are connected to one of the vacuum heat collection tubes (20).
7. A greenhouse temperature control system according to claim 1, characterized in that: The hot water storage tank (21) is connected to the ground source heat pump (25), and the ground source heat pump (25) is connected to the heat exchange pipe (18), which is serpentine in shape.