A ventilation device for an agricultural greenhouse

Abstract

This utility model relates to the field of ventilation device technology, and in particular to a ventilation device for agricultural greenhouses, comprising a mounting plate, a ventilation box, a photovoltaic power supply mechanism, a fan mechanism, a water storage box, and a humidity control mechanism; a ventilation opening is provided through the center of the mounting plate, and a ventilation box is provided above the ventilation opening. Two sets of fan mechanisms are symmetrically arranged inside the ventilation box, a photovoltaic power supply mechanism is provided above the ventilation box, and water storage boxes are provided on both sides of the ventilation box. A humidity control mechanism is provided below each of the two sets of water storage boxes; this utility model achieves increased air intake area and improved air exchange efficiency through the design of a dual-fan mechanism and a multi-hole ventilation box, enabling rapid regulation of temperature and humidity inside the greenhouse, replenishment of carbon dioxide, and expulsion of harmful gases.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, and in particular to a ventilation device for agricultural greenhouses. Background Technology

[0002] With the rapid development of modern agriculture, greenhouse cultivation technology has become an important means to improve crop yield and quality. In the process of greenhouse cultivation, ventilation devices play a key role in regulating the temperature and humidity inside the greenhouse, replenishing carbon dioxide, and expelling harmful gases, which directly affects the growth environment and production efficiency of crops.

[0003] Traditional ventilation devices typically only provide ventilation and cannot effectively regulate humidity changes within the greenhouse. They are insufficient to meet the humidity requirements of crops in dry weather, and cannot make reasonable use of rainwater resources in rainy weather or provide humidification compensation in dry weather.

[0004] Therefore, to address the issue of limited functionality in traditional ventilation devices, a new ventilation system for agricultural greenhouses can be designed. This system integrates a photovoltaic power supply mechanism to achieve energy self-sufficiency; utilizes rainwater resources for humidity compensation through a humidity regulation mechanism and a water storage box design; and improves air exchange efficiency through a dual-fan mechanism and a multi-hole ventilation box design, thus effectively solving the aforementioned problems. Utility Model Content

[0005] To overcome the shortcomings of traditional ventilation devices, which cannot effectively adjust according to changes in humidity inside the greenhouse, fail to meet the humidity requirements of crops in dry weather, and cannot make reasonable use of rainwater resources in rainy weather, this utility model provides a ventilation device for agricultural greenhouses.

[0006] The technical solution is as follows: A ventilation device for agricultural greenhouses includes an installation plate, a ventilation box, a photovoltaic power supply mechanism, a fan mechanism, a water storage box, and a humidity control mechanism; a ventilation opening is provided through the center of the installation plate, and a ventilation box is provided above the ventilation opening. Two sets of fan mechanisms for accommodating and exchanging outside air are symmetrically arranged inside the ventilation box. A photovoltaic power supply mechanism for converting light energy into electrical energy is provided above the ventilation box. Water storage boxes for storing rainwater are provided on both sides of the ventilation box. A humidity control mechanism for adjusting and compensating for the humidity of the agricultural greenhouse is provided below both sets of water storage boxes.

[0007] Furthermore, the ventilation box has two sets of fan cavities inside to accommodate the fan mechanism. A partition is provided between the two sets of fan cavities, and the two sets of fan cavities are separated by the partition. Multiple sets of air inlets are evenly opened on all four side walls of the ventilation box.

[0008] Furthermore, the photovoltaic power supply mechanism includes a photovoltaic panel, and each of the lower corners of the photovoltaic panel is equipped with a connecting rod that connects to the ventilation box. A micro-inverter is located below the photovoltaic panel, and an energy storage battery is located on one side of the micro-inverter. The micro-inverter and the energy storage battery are both located at the upper end of the ventilation box, and the photovoltaic panel, the micro-inverter, and the energy storage battery are electrically connected.

[0009] Furthermore, the fan mechanism includes a motor mount, a transmission hole at the bottom center of the motor mount, a drive motor electrically connected to the energy storage battery inside the motor mount, a rotating shaft below the motor mount, the output shaft of the drive motor passing through the transmission hole and connected to the rotating shaft, four sets of fan blades surrounding the outer end of the rotating shaft, and multiple sets of second mounting holes surrounding the upper edge of the motor mount.

[0010] Furthermore, the top of the water storage box is equipped with an electric telescopic door panel, and the bottom center of the water storage tank has a through-hole.

[0011] Furthermore, the humidity regulating mechanism includes a water pump located inside the water storage tank. The lower end of the water pump is equipped with a connecting pipe, which extends through a connecting hole to the bottom of the water storage box. The lower end of the connecting pipe is equipped with a T-joint, one end of which is connected to the connecting pipe.

[0012] Furthermore, both ends of the tee connector are equipped with diversion pipes, and the lower end of the diversion pipe is provided with multiple sets of atomizing nozzles. The end of the diversion pipe away from the tee connector is fitted with a hanger rod connected to the mounting plate. The corner of the mounting plate is provided with a first mounting hole.

[0013] Furthermore, a humidity probe is provided at one bottom end of the mounting plate, and an optical rain sensor is provided at one surface end of the mounting plate. The optical rain sensor is electrically connected to the electric retractable door panel, and the humidity probe is electrically connected to the humidity adjustment mechanism.

[0014] The beneficial effects are as follows: Compared with the shortcomings of traditional ventilation devices, this application, through the design of a dual-fan mechanism and a porous ventilation box, increases the air intake area and improves air exchange efficiency. It can quickly regulate the temperature and humidity inside the greenhouse, replenish carbon dioxide, and expel harmful gases, creating a suitable growing environment for crops and improving crop production efficiency. Through the photovoltaic power supply mechanism, the ventilation device achieves energy self-sufficiency, reduces dependence on the external power grid, and lowers energy consumption and operating costs. Even in remote areas or when the power supply is unstable, the normal operation of the ventilation device can be guaranteed, providing a good growing environment for crops. Through the cooperation of humidity probes and humidity adjustment mechanisms, the humidity can be automatically adjusted according to the real-time changes in humidity inside the greenhouse. Humidification compensation can be provided in a timely manner in dry weather to meet the humidity requirements of crops, which is conducive to the growth and development of crops and improves crop yield and quality. Through the design of water storage boxes and electric telescopic doors, rainwater can be automatically collected on rainy days to provide a water source for the humidity adjustment mechanism, realizing the rational use of rainwater, reducing water waste, and conforming to the concept of energy conservation and environmental protection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the ventilation device for an agricultural greenhouse according to this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the mounting plate, ventilation box, and water storage box combination of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the photovoltaic power supply mechanism of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the fan mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the humidity regulating mechanism of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 101. Ventilation opening; 102. First mounting hole; 2. Ventilation box; 201. Fan cavity; 202. Partition plate; 203. Air inlet; 3. Photovoltaic power supply mechanism; 301. Photovoltaic panel; 302. Connecting rod; 303. Micro inverter; 304. Energy storage battery; 4. Fan mechanism; 401. Motor base; 402. Transmission hole; 403. Second mounting hole; 404. Drive motor; 405. Rotating shaft; 406. Fan blade; 5. Water storage box; 501. Water storage tank; 502. Connecting hole; 503. Electric telescopic door panel; 6. Humidity adjustment mechanism; 601. Water pump; 602. Connecting pipe; 603. T-joint; 604. Diverter pipe; 605. Atomizing nozzle; 7. Hanging rod; 8. Humidity probe; 9. Optical rain sensor. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] like Figures 1-5 As shown, a ventilation device for agricultural greenhouses includes a mounting plate 1, a ventilation box 2, a photovoltaic power supply mechanism 3, a fan mechanism 4, a water storage box 5, and a humidity regulation mechanism 6. A ventilation opening 101 is provided through the center of the mounting plate 1. A ventilation box 2 is provided above the ventilation opening 101. Two sets of fan mechanisms 4 for accommodating and exchanging outside air are symmetrically arranged inside the ventilation box 2. A photovoltaic power supply mechanism 3 for converting light energy into electrical energy is provided above the ventilation box 2. Water storage boxes 5 for storing water during rain are provided on both sides of the ventilation box 2. A humidity regulation mechanism 6 for adjusting the humidity compensation of the agricultural greenhouse is provided below both sets of water storage boxes 5.

[0024] The ventilation box 2 has two sets of fan chambers 201 inside, which accommodate the fan mechanism 4. A partition 202 is provided between the two sets of fan chambers 201, and the two sets of fan chambers 201 are separated by the partition 202. Multiple sets of air inlets 203 are evenly opened on all four side walls of the ventilation box 2. The multiple sets of air inlets 203 increase the air intake area, which can quickly introduce outside air and improve the overall air exchange efficiency of the ventilation device.

[0025] The photovoltaic power supply mechanism 3 includes a photovoltaic panel 301, and a connecting rod 302 connected to the ventilation box 2 at the lower end of the corner of the photovoltaic panel 301. A micro inverter 303 (specifically model GW-MI200) is located below the photovoltaic panel 301. An energy storage battery 304 is located on one side of the micro inverter 303. The micro inverter 303 and the energy storage battery 304 are both located at the upper end of the ventilation box 2. The photovoltaic panel 301, the micro inverter 303 and the energy storage battery 304 are electrically connected. The photovoltaic panel 301, together with the micro inverter 303 and the energy storage battery 304, constitutes a power supply system, realizing the energy self-sufficiency of the ventilation device, reducing dependence on the external power grid and reducing operating costs.

[0026] The fan mechanism 4 includes a motor base 401. A transmission hole 402 is provided at the center of the bottom of the motor base 401. Inside the motor base 401 is a drive motor 404 (model YSF90-4) that is electrically connected to the energy storage battery 304. A rotating shaft 405 is provided below the motor base 401. The output shaft of the drive motor 404 passes through the transmission hole 402 and is connected to the rotating shaft 405. Four sets of fan blades 406 are arranged around the outer end of the rotating shaft 405. Multiple sets of second mounting holes 403 are provided around the upper edge of the motor base 401. The fan mechanism 4 is securely installed in the ventilation box 2 through the second mounting holes 403 on the motor base 401. The drive motor 404 drives the rotating shaft 405 to rotate the fan blades 406, thereby realizing airflow.

[0027] The top of the water storage box 5 is equipped with an electric telescopic door 503, and the bottom center of the water storage tank 501 is provided with a through hole 502. Through the electric telescopic door 503 on the top of the water storage box 5, it can be automatically opened and closed according to the weather conditions. It can be opened to collect rainwater on rainy days and closed on sunny days to prevent water evaporation.

[0028] The humidity regulating mechanism 6 includes a water pump 601 (model CM10-2), which is located inside the water storage tank 501. The lower end of the water pump 601 is provided with a connecting pipe 602, which extends through the connecting hole 502 to the bottom of the water storage box 5. The lower end of the connecting pipe 602 is provided with a three-way connector 603, one end of which is connected to the connecting pipe 602. The water pump 601 can directly draw water from the water storage box 5. The connecting pipe 602 connects the water pump 601 to the three-way connector 603 to ensure that the water can be delivered smoothly.

[0029] Both ends of the three-way connector 603 are provided with diversion pipes 604. Multiple sets of atomizing nozzles 605 are linearly provided at the lower end of the diversion pipe 604. The end of the diversion pipe 604 away from the three-way connector 603 is fitted with a hanging rod 7 connected to the mounting plate 1. The corner of the mounting plate 1 is provided with a first mounting hole 102. Water is evenly distributed to each atomizing nozzle 605 through the diversion pipe 604, so that the humidification effect is more uniform. Multiple sets of atomizing nozzles 605 can atomize water into fine water droplets, increase the contact area between water and air, and improve humidification efficiency.

[0030] A humidity probe 8 (model JCJ175A) is provided at one bottom end of the mounting plate 1, and an optical rain sensor 9 (model RS-100) is provided at one surface end of the mounting plate 1. The optical rain sensor 9 is electrically connected to the electric telescopic gate 503, and the humidity probe 8 is electrically connected to the humidity adjustment mechanism 6. The humidity probe 8 can monitor the humidity in the greenhouse in real time and provide accurate data support for the humidity adjustment mechanism 6. When the humidity is lower than the set value, the humidity adjustment mechanism 6 will automatically start to humidify. The optical rain sensor 9 can accurately detect the rainfall and control the electric telescopic gate 503 to open and collect rainwater on rainy days.

[0031] During operation, workers install two sets of fan mechanisms 4 into the fan cavity 201 through the second mounting hole 403, and then install the device on the top of the agricultural greenhouse through the first mounting hole 102. The photovoltaic panel 301 absorbs sunlight during the day, and the direct current is converted to alternating current by the micro-inverter 303. Part of the electricity directly powers the fan mechanism 4, while the other part is stored in the energy storage battery 304. The fan mechanism 4 runs continuously, drawing in outside air through the air inlets 203 on the four side walls of the ventilation box 2. This air then enters the greenhouse through the ventilation openings 101, achieving air exchange, regulating the temperature and humidity inside the greenhouse, replenishing carbon dioxide, and expelling harmful gases. The humidity probe 8 monitors the greenhouse in real time. The humidity inside the greenhouse is monitored and the data is transmitted to the humidity control mechanism 6. When the humidity is lower than the set value, the humidity control mechanism 6 is activated, and the water pump 601 draws water from the water storage box 5. The water is then transported to the atomizing nozzle 605 through the connecting pipe 602, the three-way connector 603, and the diverting pipe 604. The atomizing nozzle 605 atomizes the water into fine droplets and sprays them out to increase the humidity inside the greenhouse. The optical rain sensor 9 detects rainfall in real time. When rainfall is detected, it sends a signal to the electric telescopic gate 503, which automatically opens. Rainwater flows into the water storage box 5 through the top of the ventilation box 2 for collection. When the rain stops, the electric telescopic gate 503 automatically closes to prevent the water in the water storage box 5 from evaporating.

[0032] Its working principle is as follows: the photovoltaic panel 301, as an energy harvesting device, utilizes the photovoltaic effect of semiconductor materials to directly convert light energy into electrical energy. The micro-inverter 303 converts the direct current output from the photovoltaic panel 301 into alternating current to meet the needs of different electrical devices. The energy storage battery 304 serves as an energy storage device, storing excess electrical energy when there is sufficient sunlight and providing power to the fan mechanism 4 and humidity control mechanism 6 when there is insufficient sunlight or at night. The drive motor 404 of the fan mechanism 4 is powered by the energy storage battery 304, which drives the fan blades 406 to rotate. The air inlets 203 on the four side walls of the ventilation box 2 allow outside air to enter the ventilation box 2 from multiple directions. After being accelerated by the fan mechanism 4, the outside air... Water enters the greenhouse through vent 101, enabling rapid air exchange. Multiple atomizing nozzles 605 at the lower end of the diversion pipe 604 atomize the water into fine droplets. These droplets fully contact the air inside the greenhouse, increasing the moisture content and thus regulating humidity. An optical rain sensor 9 detects rainfall using optical principles. When raindrops fall, the optical rain sensor 9 converts this change into an electrical signal and sends it to the electric telescopic gate 503. Upon receiving the signal, the electric telescopic gate 503 opens, allowing rainwater to flow into the water storage box 5. When the rain stops, the optical rain sensor 9 no longer detects rainfall and sends a signal to the electric telescopic gate 503 to close the gate, preventing water evaporation.

[0033] Its beneficial effects are significant. This application, through the design of a dual-fan mechanism 4 and a porous ventilation box 2, increases the air intake area and improves air exchange efficiency. It can quickly regulate the temperature and humidity inside the greenhouse, replenish carbon dioxide, and expel harmful gases, creating a suitable growing environment for crops and improving crop production efficiency. Through the photovoltaic power supply mechanism 3, the ventilation device achieves energy self-sufficiency, reduces dependence on the external power grid, and lowers energy consumption and operating costs. Even in remote areas or when the power supply is unstable, the normal operation of the ventilation device can be guaranteed, providing a good growing environment for crops. Through the cooperation of the humidity probe 8 and the humidity adjustment mechanism 6, the humidity can be automatically adjusted according to the real-time changes in humidity inside the greenhouse. Humidification compensation can be carried out in a timely manner in dry weather to meet the humidity requirements of crops, which is conducive to the growth and development of crops and improves crop yield and quality. Through the design of the water storage box 5 and the electric telescopic door 503, rainwater can be automatically collected on rainy days to provide a water source for the humidity adjustment mechanism 6, realizing the rational use of rainwater, reducing water waste, and conforming to the concept of energy conservation and environmental protection.

Claims

1. A ventilation device for agricultural greenhouse, comprising a mounting plate (1); characterized in that, It also includes a ventilation box (2), a photovoltaic power supply mechanism (3), a fan mechanism (4), a water storage box (5), and a humidity control mechanism (6); a ventilation opening (101) is provided through the center of the mounting plate (1), a ventilation box (2) is provided above the ventilation opening (101), two sets of fan mechanisms (4) for accommodating and exchanging outside air are symmetrically provided inside the ventilation box (2), a photovoltaic power supply mechanism (3) for converting light energy into electrical energy is provided above the ventilation box (2), a water storage box (5) for storing water on rainy days is provided on both sides of the ventilation box (2), and a humidity control mechanism (6) for adjusting the humidity compensation of the agricultural greenhouse is provided below the two sets of water storage boxes (5).

2. The ventilation device for an agricultural greenhouse according to claim 1, characterized in that, The ventilation box (2) has two sets of fan chambers (201) inside to accommodate the fan mechanism (4). A partition (202) is provided between the two sets of fan chambers (201). The two sets of fan chambers (201) are separated by the partition (202). Multiple sets of air inlets (203) are evenly opened on the four side walls of the ventilation box (2).

3. A ventilation device for agricultural greenhouses according to claim 1, characterized in that, The photovoltaic power supply mechanism (3) includes a photovoltaic panel (301), and a connecting rod (302) connected to the ventilation box (2) is provided at the lower end of the corner of the photovoltaic panel (301). A micro inverter (303) is provided below the photovoltaic panel (301), and an energy storage battery (304) is provided on one side of the micro inverter (303). The micro inverter (303) and the energy storage battery (304) are both located at the upper end of the ventilation box (2). The photovoltaic panel (301), the micro inverter (303) and the energy storage battery (304) are electrically connected.

4. A ventilation device for agricultural greenhouses according to claim 3, characterized in that, The fan mechanism (4) includes a motor base (401), a transmission hole (402) is provided at the bottom center of the motor base (401), a drive motor (404) electrically connected to the energy storage battery (304) is provided inside the motor base (401), a rotating shaft (405) is provided below the motor base (401), the output shaft of the drive motor (404) passes through the transmission hole (402) and is connected to the rotating shaft (405), four sets of fan blades (406) are arranged around the outer end of the rotating shaft (405), and multiple sets of second mounting holes (403) are arranged around the upper edge of the motor base (401).

5. A ventilation device for agricultural greenhouses according to claim 2, characterized in that, The top of the water storage box (5) is provided with an electric telescopic door panel (503), and the bottom center of the water storage tank (501) is provided with a through hole (502).

6. A ventilation device for agricultural greenhouses according to claim 5, characterized in that, The humidity control mechanism (6) includes a water pump (601), which is located inside the water storage tank (501). The lower end of the water pump (601) is provided with a connecting pipe (602). The lower end of the connecting pipe (602) extends through the connecting hole (502) to the bottom of the water storage box (5). The lower end of the connecting pipe (602) is provided with a three-way connector (603), one end of which is connected to the connecting pipe (602).

7. A ventilation device for agricultural greenhouses according to claim 6, characterized in that, Both ends of the three-way connector (603) are provided with diversion pipes (604). Multiple atomizing nozzles (605) are linearly provided at the lower end of the diversion pipe (604). A hanger (7) connected to the mounting plate (1) is sleeved on the outside of the end of the diversion pipe (604) away from the three-way connector (603). A first mounting hole (102) is opened at the corner of the mounting plate (1).

8. A ventilation device for agricultural greenhouses according to claim 7, characterized in that, A humidity probe (8) is provided at one bottom end of the mounting plate (1), and an optical rain sensor (9) is provided at one surface end of the mounting plate (1). The optical rain sensor (9) is electrically connected to the electric telescopic door panel (503), and the humidity probe (8) is electrically connected to the humidity adjustment mechanism (6).

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