Physical sterilization and insect killing equipment for greenhouse

Abstract

The utility model relates to physical sterilization and insect killing equipment for a greenhouse, and aims to solve the technical problem that pesticide is used for killing insects in the greenhouse, and the residual is serious. According to the technical scheme, the device comprises an acceleration air pipe module, an ionization air generator module and a control module, an acceleration air pipe comprises a taper pipe small-opening straight pipe section, a taper pipe section and a taper pipe large-opening straight pipe section and is fixedly arranged in a shell, and the ionization air generator module comprises an ionization air generator shell, a second axial flow fan and an ionization air generator assembly. The ionization air generator shell is fixedly arranged on the top face of the outer shell, the ionization air generator assembly is fixedly arranged in the ionization air generator shell, the two axial flow fans are arranged at inlets of the ionization air generator shell and the outer shell respectively, and the control module comprises a controller, a clock and a timer. The controller is electrically connected with the two axial flow fans and the ionization air generator assembly. Pesticide residues of fruits and vegetables can be greatly reduced, and safe and effective effects can be achieved by applying pesticide according to set time and dosage.

Description

Technical Field

[0001] This utility model belongs to the field of greenhouse pest control technology, specifically relating to a greenhouse physical sterilization and pest control device. Background Technology

[0002] Greenhouse crops in my country are frequently affected by pests and diseases, which are usually treated with pesticides. As a result, pesticide residues in fruits and vegetables have always been a serious food safety issue.

[0003] Utility model patent 2022221146380: An air quality regulating device for vegetable greenhouses, its shortcomings are: the ionized air outlet is located on the air inlet side of a large axial flow fan. The ionized air generator inevitably produces a high concentration of strong oxidizing gas that flows through the motor and other electrical components of the fan, causing oxidation and damaging the electrical insulation. Furthermore, the ionized air generator outlet being located on the air inlet side of the large axial flow fan obstructs the fan's air intake area, reducing airflow and affecting fan efficiency and performance.

[0004] The "small flying saucer" in the article "Small 'Flying Saucer' with Big Functions - Green Prevention and Control System for Diseases and Pests in Facility Vegetables" published on the website uses a small flying saucer. Under standard conditions, ozone has a specific gravity of 2.144 g / L, while air has a specific gravity of 1.293 g / L. Ozone is much denser than air, so to ensure uniform ozone distribution in the greenhouse, a relatively high wind speed is needed to blow it far and evenly. Otherwise, due to its high density, ozone quickly settles to the ground, causing localized high concentrations that damage crops, while areas with low concentrations result in insufficient sterilization and insecticidal dosage. The small flying saucer's structure is similar to a vacuum cleaner, drawing in air from the bottom and expelling it from the top and perimeter. This structure doesn't allow for a large airflow, and the air velocity decreases rapidly after the fan exits, limiting the distribution area. To achieve uniform ozone distribution in the greenhouse, multiple units would need to be deployed, resulting in a significant investment in equipment. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned technical problems and provide a greenhouse physical sterilization and insecticidal device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A greenhouse physical sterilization and insecticidal device includes an accelerated air duct module, an ionized air generator module, and a control module;

[0008] The acceleration duct module includes a shell, an acceleration duct, and a first axial flow fan. The acceleration duct includes a tapered tube with a small opening and a straight pipe section, a tapered tube section, and a tapered tube with a large opening and a straight pipe section. The acceleration duct is horizontally and fixedly embedded inside the shell. The first axial flow fan is located at the inlet of the tapered tube with a large opening and a straight pipe section.

[0009] The ionized air generator module includes an ionized air generator housing, a mounting plate, an ionized air generator assembly, and a second axial flow fan. The ionized air generator housing is a U-shaped shell structure without a top surface, which is inclined and fixed to the top surface of the outer shell, and the inner cavity of the ionized air generator housing is connected to the inner cavity of the straight pipe section with a small opening of the tapered tube. The mounting plate is movably disposed on the top surface of the ionized air generator housing. The ionized air generator assembly is fixed in the middle of the bottom surface of the mounting plate and located inside the ionized air generator housing. The second axial flow fan is disposed at the inlet of the inner cavity of the ionized air generator housing.

[0010] The control module includes a controller, a clock, a timer, and a human body sensor. The clock and timer are integrated on the controller, the human body sensor is mounted on the housing, and the alarm is mounted on the housing.

[0011] The controller is electrically connected to the human body sensor, the alarm, the first axial flow fan, the ionized air generator assembly, and the second axial flow fan.

[0012] Furthermore, the angle α between the axis of the accelerating air duct and the axis of the ionized air generator assembly is 15-60°.

[0013] Furthermore, hook brackets are provided at both ends of the top surface of the outer casing.

[0014] Furthermore, the mounting plate is mounted on the housing of the ionized air generator via hinges or a pull-out mechanism.

[0015] Furthermore, the alarm is an audible and visual alarm.

[0016] Furthermore, the control module also includes several ozone sensors, which are evenly arranged on the ground inside the greenhouse, and the ozone sensors are electrically connected to the controller.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses physical sterilization and insecticidal methods, which can significantly reduce pesticide residues in fruits and vegetables. The ionized gas decomposes quickly in the greenhouse. The dosage is calculated according to the crop growth and disease occurrence. The application time and dosage are set by a timer and controller to achieve a safe and effective result.

[0019] 2. This utility model adopts a first axial flow fan and acceleration tube structure. The gas outlet of the ionization gas generator is located in the acceleration section of the acceleration tube, so that the strong oxidizing gases will not come into contact with the electrical components.

[0020] 3. This utility model uses a large-volume axial flow fan with an air volume of over 3000 m³ / h. The standard greenhouse area is 667 square meters and the greenhouse volume is 2300 cubic meters. Therefore, the air inside the greenhouse can be circulated completely in less than an hour. The decomposition time of ozone gas is generally 30-90 minutes. Therefore, the greenhouse air can be circulated multiple times before ozone decomposition, so as to achieve the purpose of uniform ozone distribution.

[0021] 4. This utility model uses a timer, clock, and controller to control the sterilization process as needed. Timed start-up and automatic shutdown can prevent operators from being harmed by ionized gases during on-site operation, and save on manual operation and labor costs.

[0022] 5. This utility model is also equipped with a human body induction sensor and an alarm. When someone accidentally enters the site during the gas release, an alarm will be triggered to achieve the purpose of safe use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the electrical connections of this utility model;

[0026] In the diagram: 1-outer shell, 2-first axial flow fan, 3-small opening straight pipe section of cone tube, 4-cone tube section, 5-large opening straight pipe section of cone tube, 6-ionized air generator shell, 7-mounting plate; 8-ionized air generator assembly; 9-second axial flow fan, 10-hook bracket. Detailed Implementation

[0027] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0028] like Figure 1-2 As shown, a greenhouse physical sterilization and insecticidal device includes an accelerated air duct module, an ionized air generator module, and a control module;

[0029] The acceleration duct module includes a housing 1, an acceleration duct and a first axial flow fan 2. The acceleration duct includes a conical small-mouth straight pipe section 3, a conical section 4 and a conical large-mouth straight pipe section 5. The acceleration duct is horizontally fixed and embedded inside the housing 1. The first axial flow fan 2 is set at the inlet of the conical large-mouth straight pipe section 5. Hook brackets 10 are provided at both ends of the top surface of the housing 1.

[0030] The ionized air generator module includes an ionized air generator housing 6, a mounting plate 7, an ionized air generator assembly 8, and a second axial flow fan 9. The ionized air generator housing 6 is a U-shaped shell structure without a top surface. The axis of the accelerating air duct is inclined at 45° to the axis of the ionized air generator assembly 8 and fixed on the top surface of the housing 1. The inner cavity of the ionized air generator housing 6 is connected to the inner cavity of the conical tube small-mouth straight pipe section 3. The mounting plate 7 is set on the top surface of the ionized air generator housing 6 by a hinge. The ionized air generator assembly 8 is fixed in the middle of the bottom surface of the mounting plate 7 and located inside the ionized air generator housing 6. The second axial flow fan 9 is set at the inlet of the inner cavity of the ionized air generator housing 6.

[0031] The control module includes a controller, a clock, a timer, a human body sensor, several ozone sensors, and an alarm. The clock and timer are integrated on the controller. The human body sensor is installed on the outer shell 1. Several ozone sensors are evenly arranged on the ground inside the greenhouse. The alarm is an audible and visual alarm installed on the outer shell 1.

[0032] The controller is electrically connected to the human body sensor, the ozone sensor, the alarm, the first axial flow fan 2, the ionized air generator assembly 8, and the second axial flow fan 9.

[0033] The angle α between the axis of the acceleration duct and the axis of the ionized air generator assembly 8 can be any angle between 15° and 60°.

[0034] The mounting plate 7 can also be installed in a snap-fit ​​manner on the housing 6 of the ionized air generator.

[0035] The working process of this utility model:

[0036] Inside the greenhouse, select an appropriate height based on the height of the crop and hang the device of this utility model using the hook frame 10. Calculate the required concentration or dosage based on the pests and diseases in the greenhouse and the crop growth conditions, and set the device's operating time or dosage using the controller.

[0037] When the set start-up time is reached, the controller starts the ionized air generator assembly 8, the second axial flow fan 9, and the first axial flow fan 2. The first axial flow fan 2 blows air from the large opening of the conical tube straight pipe section 5 into the small opening of the conical tube straight pipe section 3 for air acceleration and creates a negative pressure in the small opening of the conical tube straight pipe section 3. Ionized gas is generated in the ionized air generator housing 6. The second axial flow fan 9 blows the ionized gas into the small opening of the conical tube straight pipe section 3. After entering the small opening of the conical tube straight pipe section 3, the ionized gas mixes with the air supplied by the axial flow fan 1 and is then blown out. The mixed gas is heavier than air. After being blown out by the high-speed airflow, it falls slowly and is evenly distributed in the greenhouse, acting on the surface of crops and soil to produce a sterilization and insecticidal effect.

[0038] The ionized air generator produces ozone, and high ozone concentrations can be harmful to the human body. Therefore, the controller and timer are set to run at night when no one is in the greenhouse; for example, turning on at 11 p.m. and turning off at a time that depends on the crop variety and growth stage and the dosage of the insecticide.

[0039] When this invention is in operation at night, if someone enters or accidentally enters the greenhouse, the human body sensor detects the human body signal and transmits it to the controller. The controller then stops the ionized air generator assembly 8, the first axial flow fan 2, and the second axial flow fan 9, and activates the alarm. This alarms the management personnel while preventing the ionized air concentration from being too high and causing harm to the human body.

[0040] An ozone sensor monitors the ozone concentration on the ground in the greenhouse in real time. The controller adjusts the opening and closing of the ionizing air generator assembly 8, the first axial flow fan 2, and the second axial flow fan 9 in real time according to the ozone concentration. When the ozone concentration is higher than the upper limit of the preset value, the controller controls the ionizing air generator assembly 8, the first axial flow fan 2, and the second axial flow fan 9 to shut down. When the ozone concentration is lower than the lower limit of the preset value, the ionizing air generator assembly 8, the first axial flow fan 2, and the second axial flow fan 9 increase their operating power.

[0041] The equipment operates at night, and the ionized gas decomposes quickly, so it does not affect personnel working in the greenhouse during the day.

[0042] When the ionized air generator assembly 8 malfunctions and needs repair or replacement, the mounting plate 7 can be opened or removed to facilitate the inspection and maintenance of the ionized air generator assembly 8. After the inspection and maintenance are completed, the mounting plate 7 can be installed back.

Claims

1. A greenhouse physical sterilization and insecticidal device, characterized in that, This includes an acceleration duct module, an ionized air generator module, and a control module; The acceleration duct module includes a shell (1), an acceleration duct and a first axial flow fan (2). The acceleration duct includes a small-diameter straight pipe section (3), a tapered pipe section (4) and a large-diameter straight pipe section (5). The acceleration duct is horizontally fixed and embedded inside the shell (1). The first axial flow fan (2) is located at the inlet of the large-diameter straight pipe section (5). The ionized air generator module includes an ionized air generator housing (6), a mounting plate (7), an ionized air generator assembly (8), and a second axial flow fan (9). The ionized air generator housing (6) is a U-shaped shell structure without a top surface, which is inclined and fixed on the top surface of the outer shell (1), and the inner cavity of the ionized air generator housing (6) is connected to the inner cavity of the conical tube small-mouth straight pipe section (3). The mounting plate (7) is movably set on the top surface of the ionized air generator housing (6). The ionized air generator assembly (8) is fixed in the middle of the bottom surface of the mounting plate (7) and located inside the ionized air generator housing (6). The second axial flow fan (9) is set at the inlet of the inner cavity of the ionized air generator housing (6). The control module includes a controller, a clock, a timer, and a human body sensor. The clock and timer are integrated on the controller, and the human body sensor is installed on the housing (1). The housing (1) is also equipped with an alarm. The controller is electrically connected to the human body sensor, the alarm, the first axial flow fan (2), the ionized air generator assembly (8), and the second axial flow fan (9).

2. The greenhouse physical sterilization and insecticidal equipment according to claim 1, characterized in that, The angle α between the axis of the acceleration duct and the axis of the ionized air generator assembly (8) is 15-60°.

3. The greenhouse physical sterilization and insecticidal equipment according to claim 1, characterized in that, Hook brackets (10) are provided at both ends of the top surface of the outer casing (1).

4. The greenhouse physical sterilization and insecticidal equipment according to claim 1, characterized in that, The mounting plate (7) is mounted on the housing (6) of the ionized air generator by means of a hinge or a snap-fit.

5. The greenhouse physical sterilization and insecticidal equipment according to claim 1, characterized in that, The alarm is an audible and visual alarm.

6. The greenhouse physical sterilization and insecticidal equipment according to claim 1, characterized in that, The control module also includes several ozone sensors, which are evenly arranged on the ground inside the greenhouse. The ozone sensors are electrically connected to the controller.

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