An agricultural greenhouse ventilation temperature regulating device

Abstract

The utility model discloses an agricultural greenhouse ventilation temperature adjusting device, including mobile assembly and adjusting assembly, mobile assembly includes mobile frame and with the track of mobile frame bottom movement cooperation, mobile frame outside is equipped with fan module, and adjusting assembly includes the heating box and low temperature box of being located in the frame, mobile frame in the utility model passes through bottom moving wheel group and track cooperation, can along the greenhouse length direction or width direction uniform velocity moves, and the diffusion effect of cooperation fan module can cover greenhouse any area, thoroughly solve the defect of existing fixed fan local control, the fan module of mobile frame outside is connected through the ball hinge module and base simultaneously, can realize multi -angle adjustment, when using, the temperature sensor real -time monitoring in the temperature of the environment of big day and night temperature difference is utilized, and control module can automatically switch heating mode and cooling mode, need not manual frequent operation, avoid the crop damage caused by the regulation and control lag.

Description

Technical Field

[0001] This utility model relates to the field of agricultural greenhouse technology, specifically to an agricultural greenhouse ventilation and temperature regulation device. Background Technology

[0002] With the large-scale development of facility agriculture, glass greenhouses and plastic greenhouses have become the core carriers for off-season crop cultivation and the cultivation of high-value-added agricultural products. These greenhouses provide stable growth conditions for crops by artificially controlling environmental parameters such as internal temperature, humidity, and gas composition. Among these, ventilation is a key control link. On the one hand, crop photosynthesis requires continuous consumption of carbon dioxide, and ventilation can replenish fresh outdoor air, maintaining the carbon dioxide concentration in the greenhouse within a suitable range of 300-500 ppm. On the other hand, greenhouses are prone to sudden temperature rises during the daytime due to light transmission and heat accumulation, and sudden temperature drops during cold weather or at night due to heat loss. Ventilation can help control the temperature and prevent seedlings from being scorched by overheating or frozen by underheating.

[0003] However, existing ventilation technologies for agricultural greenhouses still have significant shortcomings. Most existing systems employ a layout with fixed intake and exhaust fans, installed on the sides or ends of the greenhouse, achieving only localized air exchange. For medium and larger greenhouses exceeding 50 meters in length and 10 meters in width, areas far from the fans easily form "dead zones," leading to temperature variations of 5-8°C (e.g., 25°C near the fans, but up to 32°C further away). This results in poor crop growth uniformity, with some areas experiencing excessive growth due to high temperatures or stunted growth due to low temperatures. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an agricultural greenhouse ventilation temperature regulation device that can improve the temperature regulation range during operation and improve the uniformity of temperature control.

[0005] The technical solution adopted by this utility model is: an agricultural greenhouse ventilation temperature regulation device, including a moving assembly and an regulating assembly; the moving assembly includes a moving frame and a track that moves and cooperates with the bottom of the moving frame, a fan module is provided on the outside of the moving frame, the fan module is rotatably mounted on the outside of the moving frame, and an atomizing nozzle and a hot air valve are arranged around the fan module on the side of the moving frame; the regulating assembly includes a heating box and a low temperature box located in the frame, an electric heating module is provided in the heating box, the output end of the heating box is connected to the hot air valve, the input end of the heating box is connected to the air outlet on the moving frame, and the air inlet is also provided with a cross-flow fan, the output end of the low temperature box is connected to the atomizing nozzle, and the input end of the low temperature box is connected to a water pump module that supplies water to the atomizing nozzle.

[0006] In this technical solution, the ventilation device is placed inside the greenhouse during use. During operation, the device moves along a track using a movable frame, allowing it to move within the greenhouse. This movable structure facilitates ventilation by expanding the working range and ensuring uniform temperature control. When the greenhouse temperature is too low, a cross-flow fan draws air from the greenhouse into a heating chamber, where it is heated by an electric heating module before being output through a hot air valve. The hot air is then circulated by the fan module to raise the greenhouse temperature. When the greenhouse temperature is high, a water pump module supplies water to a low-temperature chamber. After cooling, the water is atomized by spray nozzles and then sprayed onto different areas of the greenhouse by a fan module to further cool the plants. This ensures the greenhouse temperature remains within a suitable range, preventing the vegetables from burning or freezing.

[0007] Preferably, the low-temperature chamber is provided with a cover plate on the top for opening and closing the low-temperature chamber, and the low-temperature chamber is used to place ice blocks.

[0008] Preferably, each surface of the low-temperature chamber and the heating chamber is covered with an insulation board.

[0009] Preferably, the bottom of the mobile frame is provided with a set of mobile wheels adapted to the rolling of the track.

[0010] Preferably, the outer side of the mobile frame is provided with a base for mounting the fan module, and a ball joint module is provided between the base and the mobile frame.

[0011] Preferably, the electric heating module includes a spiral heating coil disposed inside the heating box.

[0012] Preferably, it also includes a control module that is signal-connected to the fan module, electric heating module, cross-flow fan and water pump module, and the control module is signal-connected to a control panel and a temperature sensor.

[0013] The beneficial effects of this utility model are as follows: In this utility model, the mobile frame can move at a constant speed along the length or width of the greenhouse by means of the bottom moving wheel set and the track. With the diffusion effect of the fan module, it can cover any area of ​​the greenhouse, completely solving the defects of the local control of the existing fixed fan. At the same time, the fan module on the outside of the mobile frame is connected to the base through the ball joint module, which can realize multi-angle adjustment. When in use, for environments with large day and night temperature differences, the temperature sensor monitors the temperature inside the greenhouse in real time, and the control module can automatically switch between heating mode and cooling mode without frequent manual operation, avoiding crop damage caused by control lag. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a structural diagram of the agricultural greenhouse ventilation and temperature regulation device provided in the embodiments of this utility model.

[0016] Reference numerals in the attached diagram: 100 for the movable frame, 200 for the track, 300 for the fan module, 400 for the atomizing nozzle, 500 for the hot air valve, 600 for the heating box, 700 for the low-temperature box, 800 for the electric heating module, 900 for the cross-flow fan, 1000 for the water pump module, 1100 for the cover plate, 1200 for the insulation board, 1300 for the movable wheel set, 1400 for the base, 1500 for the ball joint module, 1600 for the control panel, and 1700 for the temperature sensor. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0019] like Figure 1 As shown in the figure, a specific embodiment of this utility model provides an agricultural greenhouse ventilation temperature regulation device, including a movable assembly and an adjustment assembly; the movable assembly includes a movable frame 100 and a track 200 that moves and cooperates with the bottom of the movable frame 100; a fan module 300 is provided on the outside of the movable frame 100, and the fan module 300 is rotatably mounted on the outside of the movable frame 100; on the side of the movable frame 100 where the fan module 300 is provided, atomizing nozzles 400 and hot air are also arranged around the fan module 300. Valve port 500; The regulating assembly includes a heating box 600 and a low-temperature box 700 located in the frame. The heating box 600 is equipped with an electric heating module 800. The output end of the heating box 600 is connected to the hot air valve port 500, and the input end of the heating box 600 is connected to the air vent located on the movable frame 100. The air inlet is also equipped with a cross-flow fan 900. The output end of the low-temperature box 700 is connected to the atomizing nozzle 400, and the input end of the low-temperature box 700 is connected to a water pump module 1000 that supplies water to the atomizing nozzle 400.

[0020] like Figure 1As shown, with the above configuration, the ventilation device in this embodiment is placed inside the greenhouse during use. During operation, the ventilation device uses a movable frame 100 in conjunction with the track 200, allowing the movable frame 100 to move along the track 200 within the greenhouse. This movable structure facilitates ventilation by expanding the working range and improving the uniformity of temperature regulation. The track 200 can be arranged along the inner perimeter of the greenhouse, allowing the movable frame 100 to move around the greenhouse. In this embodiment, a set of movable wheels 1300 is provided at the bottom of the movable frame 100, which is adapted to the rolling motion of the track 200. The movable wheel set 1300 uses an electric drive structure, typically with a moving speed set to 0.5-1 m / min. The electric drive structure uses a motor drive structure from the prior art, combined with a power supply and controller for movement, which will not be elaborated further here. Due to the movable structure combined with the diffusion effect of the fan module 300, any area of ​​the greenhouse can be covered, completely solving the shortcomings of existing fixed fans in localized control.

[0021] like Figure 1 As shown, during operation, when the temperature inside the greenhouse is too low, the cross-flow fan 900 draws air from the greenhouse into the heating box 600, heats it through the electric heating module 800, and then outputs it through the hot air valve 500. Under the diffusion effect of the fan module, the hot air is circulated and output to raise the temperature inside the greenhouse. The hot air valve 500 uses a negative pressure module to draw the heated gas out of the heating box 600, improving the hot air output efficiency. When the temperature inside the greenhouse is high, the water pump module 1000 supplies water to the low-temperature box 700. After cooling, the water is output to the atomizing nozzle 400 for atomization. The atomized water is sprayed to different areas of the greenhouse through the fan module to cool down the greenhouse, thereby ensuring that the temperature inside the greenhouse is within a suitable range and preventing the vegetables and crops inside from being burned or frozen. By integrating the ventilation fan, heating box 600, low temperature box 700, and atomizing nozzle 400 into the mobile frame 100, there is no need to equip it with separate heating and cooling equipment, making the overall structure more compact and not affecting crop planting and field operations.

[0022] like Figure 1 As shown, to reduce cooling costs, this embodiment has a cover plate 1100 on the top of the low-temperature chamber 700 for opening and closing. The low-temperature chamber 700 is used to hold ice. The ice placed in the low-temperature chamber 700 can cool the water to 10-15℃. The cooled water is then transported to the atomizing nozzle 400 to form atomized particles with a diameter of 50-100μm. After being blown by the fan module 300, the atomized water is evenly sprayed into the temperature range. The evaporation and heat absorption of the atomized water can lower the ambient temperature by 3-5℃, and the atomized particles are fine and will not wet the crop leaves (avoiding disease). The insulation plate 1200 of the low-temperature chamber 700 is designed to slow down the melting rate of the ice by 50%. One addition of ice can usually maintain cooling for 4-6 hours without frequent replenishment, reducing labor costs.

[0023] like Figure 1As shown, insulation boards 1200 are attached to the surfaces of both the low-temperature chamber 700 and the heating chamber 600. After the insulation boards 1200 are attached to the surface of the low-temperature chamber 700, the ice blocks are prevented from melting too quickly, thus extending the cooling and heat preservation time.

[0024] like Figure 1 As shown, in order to adjustably mount the fan module on the outside of the movable frame 100, this embodiment provides a base 1400 for mounting the fan module 300 on the outside of the movable frame 100, and a ball joint module 1500 is provided between the base 1400 and the movable frame 100. In this way, the fan module 300 is connected to the base 1400 through the ball joint module 1500, allowing for multi-angle adjustment from 0° to 90°, and can be tilted upwards by 30° during use.

[0025] It blows hot air and sprays atomized water at a 45° angle downwards, with a wind field coverage radius of 3-5 meters, which is more than twice the coverage range of a fixed fan.

[0026] like Figure 1 As shown, the electric heating module 800 includes a spiral heating coil housed within the heating chamber 600. A cross-flow fan 900 draws warm air into the heating chamber 600, heats it to 25-28°C via the spiral heating coil, and then outputs it from the hot air valve 500, before dispersing it to the surrounding area through the fan module 300. Simultaneously, each surface of the heating chamber 600 is covered with insulation boards 1200, resulting in a heat loss rate of less than 5%, which quickly stabilizes the temperature within the warm chamber within a suitable range, preventing frost damage to seedlings.

[0027] This embodiment provides a control device, which includes a control module connected to the fan module, electric heating module, cross-flow fan, and water pump module. The control module is also connected to a control panel and a temperature sensor. The control module, based on real-time data from the temperature sensor, adjusts parameters such as the power of the electric heating module and the water output of the atomizing nozzle according to the temperature, stabilizing the internal temperature within the target range (e.g., 20-25℃). The controller can also employ automatic start / stop and energy-saving operation: when the internal temperature is within the target range, the control module automatically reduces the fan module speed, shuts off the heating and cooling structures, and only maintains low-speed movement of the moving frame, reducing energy consumption by more than 60% compared to continuous full-load operation. The above control technology is existing technology and will not be elaborated further here.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A temperature regulation device for ventilation in an agricultural greenhouse, characterized in that; Including the moving assembly and the adjusting assembly; The mobile assembly includes a mobile frame (100) and a track (200) that moves and cooperates with the bottom of the mobile frame (100). A fan module (300) is provided on the outside of the mobile frame (100). The fan module (300) is rotatably mounted on the outside of the mobile frame (100). On the side of the mobile frame (100) where the fan module (300) is provided, an atomizing nozzle (400) and a hot air valve (500) are arranged around the fan module (300). The regulating assembly includes a heating chamber (600) and a low-temperature chamber (700) located in the frame. The heating chamber (600) is equipped with an electric heating module (800). The output end of the heating chamber (600) is connected to a hot air valve (500). The input end of the heating chamber (600) is connected to an air vent located on a movable frame (100). The air inlet is also equipped with a cross-flow fan (900). The output end of the low-temperature chamber (700) is connected to an atomizing nozzle (400). The input end of the low-temperature chamber (700) is connected to a water pump module (1000) that supplies water to the atomizing nozzle (400).

2. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; The top of the low-temperature chamber (700) is provided with a cover plate (1100) for opening and closing the low-temperature chamber (700), and the low-temperature chamber (700) is used to place ice blocks.

3. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; Each surface of the low-temperature chamber (700) and the heating chamber (600) is covered with an insulation board (1200).

4. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; The bottom of the mobile frame (100) is provided with a set of mobile wheels (1300) that are adapted to the rolling of the track (200).

5. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; The mobile frame (100) is provided with a base (1400) for mounting a fan module (300) on its outer side, and a ball joint module (1500) is provided between the base (1400) and the mobile frame (100).

6. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; The electric heating module (800) includes a spiral heating coil disposed in the heating box (600).

7. The agricultural greenhouse ventilation and temperature regulation device according to claim 1, characterized in that; It also includes a control module that is signal-connected to the fan module (300), electric heating module (800), cross-flow fan (900) and water pump module (1000), and the control module is signal-connected to the control panel (1600) and temperature sensor (1700).

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