CN211881356U - Greenhouse air quality regulation and control device based on distributed active circulation - Google Patents
Greenhouse air quality regulation and control device based on distributed active circulation Download PDFInfo
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- CN211881356U CN211881356U CN202020267098.8U CN202020267098U CN211881356U CN 211881356 U CN211881356 U CN 211881356U CN 202020267098 U CN202020267098 U CN 202020267098U CN 211881356 U CN211881356 U CN 211881356U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The utility model provides a greenhouse air quality regulation and control device based on distributing type initiative circulation. Comprises a gas circulating device, a gas improving device and a control system.The gas circulating device absorbs and conveys the gas at the bottom of the greenhouse to the position above the crops, so that the gas actively circulates from top to bottom; the gas improving device is used for absorbing gas and dehumidifying, heating or increasing CO for the gas2Concentration, ozone concentration; the control system is used for controlling the device to accurately operate. The utility model discloses a control system synthesizes the gas circulation in the regulation and control greenhouse, absorbs the greenhouse gas and will be through the gaseous release after the improvement by gas circulation device, constantly improves the air quality in the greenhouse.
Description
Technical Field
The utility model belongs to the technical field of the facility agriculture, especially, greenhouse air quality regulation and control device based on distributing type initiative circulation for CO in sunlight greenhouse2Concentration and air temperature and humidity regulation and sterilization and disinfection operation.
Background
In recent years, the facility agriculture industry in China is rapidly developed, and the solar greenhouse vegetable planting area and yield become the first major country in the world. The greenhouse vegetables are mainly out-of-season vegetables, and the sunlight greenhouse is a high-intensive production mode, so that the greenhouse vegetable has extremely high economic benefit. However, in production, the sunlight greenhouse is in a sealed state for a long time, and the air quality control inside the greenhouse is always an important problem, which mainly comprises: the humidity is high, especially at night in winter, the relative humidity of the air phase is close to saturation when the temperature is lower; the equipment in the greenhouse is lack, no heating equipment is provided, and freezing injury is easily caused in continuous low-temperature weather; no CO2The yield of crops is low by using gas fertilization equipment; under the environment of low temperature, high humidity or high temperature and high humidity, the plant diseases and insect pests of certain crops are easily caused, and a large amount of bacteria and viruses are carried in the air in a greenhouse. Therefore, in order to realize high-quality and high-efficiency production of greenhouse vegetables, the problem of air quality regulation in a greenhouse needs to be solved.
Aiming at the problem of humidity regulation and control in a greenhouse, domestic scholars research out a novel method and equipment for regulating and controlling the humidity of the greenhouse, and the applied patents mainly comprise: patent No. 201710539033.7 discloses a new type of humidity adjusting mechanism for greenhouse; patent No. 201820511551.8 discloses an agricultural greenhouse humidity adjusting device. The device mainly adopts the modes of spraying, water spraying and air exhausting to be combined with a humidity sensor for regulation and control. Although the control level and the automation degree of the method are improved compared with the traditional ventilation and exhaust method, the problems of great temperature drop and air distributed extraction caused by ventilation and moisture removal in the greenhouse in winter still cannot be solved, and some defects of the systems also comprise system faults, nozzle blockage, high energy consumption or high maintenance cost.
Compared with the foreign greenhouse humidity Control technology, the air Control device provided in the 'Simulation of humidity Control and green house temperature tracking in a growth chamber using a passive air conditioning unit' published in 2006 in the 'Control Engineering Practice' comprises two boxes and a fan, wherein one box is used for generating dry air, the other box is used for generating air with saturated relative humidity by filling water into a liner in the boxes, and the greenhouse is continuously supplied with air with proper relative humidity by controlling the ventilation amount of the two boxes. The method can keep the humidity in the greenhouse constant and provide a set humidity environment for crops. However, the device has high requirement on the sealing performance of the greenhouse, and the device development cost and the energy consumption are high.
The common feature of the above devices and methods is that the regulation and control function is relatively single, and the problem of the contradiction between ventilation and heat loss and the problem of poor air circulation effect cannot be well solved for the problem of dehumidification in winter.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of above technique, the utility model aims to provide a greenhouse air quality regulation and control device based on distributed initiative circulation has low cost, multi-functional, uses advantage such as maintenance cost is low.
The utility model discloses greenhouse air quality regulation and control device based on distributing type initiative circulation, its characterized in that: comprises a gas circulating device, a gas improving device and a control system. The gas circulating device absorbs and conveys the greenhouse bottom gas to form negative pressure, conveys the improved gas to the upper part of crops and enables the gas to actively circulate from top to bottom; the gas improving device is used for absorbing gas and dehumidifying, heating or increasing CO for the gas2Concentration and ozone concentration treatment for actively circulating the water to the interior of the greenhouse; the control system is used for controlling the gas circulation device and the gas improvement device to accurately operate.
The gas circulating device comprises a main ventilating pipe, a distributed telescopic ventilating pipe, a gas transmission pipe and a fixed rope, wherein the main ventilating pipe is positioned on one side of the ground planting area and used for transmitting gas to the gas improving device; one end of the distributed telescopic ventilation pipe is connected with the main ventilation pipe, and the other end of the distributed telescopic ventilation pipe can freely stretch into gaps among rows of the planting area to suck gas; the air delivery pipe delivers the improved gas to the upper part of the planting area for active circulation; two ends of the fixed rope are fixed on the wall body of the greenhouse and are responsible for supporting the suspension ventilation pipe;
the gas improving device comprises a dehumidifier, a warm air blower, an ozone machine and CO2A generator, a vent assembly, a vent valve; the air inlet end of the dehumidifier is connected with the air outlet end of the main ventilating pipe, and the dehumidifier is used for dehumidifying the sucked gas; the air inlet of the fan heater is connected with the air outlet of the dehumidifier, and the fan heater sucks gas and heats the passing air; the heating power of the fan heater is adjustable; the ozone machine produces ozone and discharges the ozone into the greenhouse along with the air conveying pipe for sterilization and disinfection; said CO2The generator is connected into the air delivery pipeline to generate CO2And transporting to a planting area for CO2Fertilizing; the ventilation pipe component is used for connecting a dehumidifier, a warm air blower, an ozone machine and CO2Generator and vent valve; the ventilation valve is used for switching on and off the pipeline;
the control system comprises a control box, a master controller, a dehumidifier controller, a fan heater controller, an ozone machine controller and CO2The device comprises a controller, a ventilation valve driver, a transformer, a sensor module, an input/output interface and a power supply. The control box is used for installing a main controller, a dehumidifier controller, a fan heater controller, an ozone machine controller and CO2A controller; the main controller is an STM32 type singlechip; one end of the dehumidifier controller is connected with the main controller, the other end of the dehumidifier controller is connected with the dehumidifier, and the main controller sends a signal to control the dehumidifier to work; one end of the warm air blower controller is connected with the main controller, the other end of the warm air blower controller is connected with the warm air blower, and the main controller sends a signal to control the working mode of the warm air blower; one end of the ozone machine controller is connected with the main controller, the other end of the ozone machine controller is connected with the ozone machine, and the main controller sends out signals to control the work of the ozone machine; said CO2One end of the controller is connected with the main controller, and the other end is connected with the CO2Generator, main controller for sending signal to control CO2The operation of the generator; one end of the ventilation valve driver is connected with the main controller, the other end of the ventilation valve driver is connected with the ventilation valves at different parts, and the main controller sends signals to control the opening and closing of the ventilation valves at corresponding positions; the transformer converts alternating current output by the power supply into voltage required by the controller and the driver; the sensor module comprises a wind speed and wind volume sensor, a temperature and humidity sensor, an ozone concentration sensor and CO2A concentration sensor; the input/output interface is used for connecting the main controller, the dehumidifier controller, the fan heater controller, the ozone machine controller and the CO in series2The device comprises a controller, a ventilation valve driver, a transformer and a sensor module; the power supply can provide electric energy for the control system.
Compared with the prior art, the utility model discloses beneficial effect who has:
1. the air circulation of the planting area is realized by adopting a distributed active circulation mode, the uniformity and pertinence of the air circulation in the greenhouse are greatly improved, and the gas treatment efficiency is improved;
2. the greenhouse air circulation operation can be realized by dehumidification, temperature increase, sterilization and disinfection and gas fertilization operation according to requirements, and has the advantages of multiple functions, low cost, high efficiency and the like;
3. the distribution telescopic ventilation pipe can be arranged in the space between the rows of the planting area according to the requirement during working, and the crop management can not be influenced at other times, so that the structure is compact.
Drawings
FIG. 1 is an overall structure diagram of a distributed active circulation greenhouse air quality control device;
FIG. 2 is a schematic view of the airflow of the distributed telescopic ventilation pipes and the air delivery pipes;
in the figure: 1. distributed telescopic ventilation pipe 2, main ventilation pipe 3, ozone machine 4, ventilation valve 5, ventilation pipe assembly 6 and CO2Generator 7, warm air blower 8, dehumidifier 9, air delivery pipe 10, fixed rope
Detailed Description
The utility model discloses greenhouse air quality regulation and control device based on distributing type initiative circulation, its characterized in that: comprises a gas circulating device, a gas improving device and a control system. The gas circulating device absorbs and conveys the greenhouse bottom gas to form negative pressure, conveys the improved gas to the upper part of crops and enables the gas to actively circulate from top to bottom; the gas improvement device is used for absorbing gas, dehumidifying the gas, increasing the temperature or increasing the concentration of CO2 and the concentration of ozone, and is actively circulated to the interior of the greenhouse; the control system is used for controlling the gas circulation device and the gas improvement device to accurately operate.
The gas circulating device comprises a main ventilating pipe 2, a distributed telescopic ventilating pipe 1, a wind conveying pipe 9 and a fixed rope 10; the main ventilation pipe 2 is positioned at one side of the ground planting area and used for conveying gas to the gas improving device; one end of the distributed telescopic ventilation pipe 1 is connected with the main ventilation pipe 2, and the other end of the distributed telescopic ventilation pipe can freely stretch into gaps among rows of the planting area to suck gas; the air delivery pipe 9 is used for delivering the improved gas to the upper part of the planting area for active circulation; the two ends of the fixed rope 10 are fixed on the wall bodies at the two sides of the greenhouse and are responsible for supporting the suspension ventilation pipe;
the gas improving device comprises a dehumidifier 8, a warm air blower 7, an ozone machine 3 and CO2Generator 6, vent assembly 5, vent assembly 4. The air inlet end of the dehumidifier 8 is connected with the air outlet end of the main ventilation pipe 2, and the sucked air is dehumidified; the air inlet of the warm air blower 7 is connected with the air outlet of the dehumidifier 8, and the warm air blower sucks air and heats the passing air; the air inlet of the warm air blower 7 is connected with the air outlet of the dehumidifier 8, and the warm air blower sucks gas and heats the passing gas; the heating power of the fan heater is adjustable; the ozone machine 3 produces ozone and discharges the ozone into the greenhouse along with the air delivery pipe 9 for sterilization and disinfection; said CO2The generator 6 is connected into the air delivery pipe 9 to generate CO2And transporting to a planting area for CO2Fertilizing; the ventilation pipe component 5 is used for connecting a dehumidifier 8, a warm air blower 7, an ozone machine 3 and CO2Generator 6 and vent assembly 4; the ventilation pipe assembly 4 is used for connecting and disconnecting a pipeline;
the control system comprises a control box, a master controller, a dehumidifier 8 controller, a fan heater 7 controller, an ozone machine 3 controller and CO2Controller, ventilation pipe subassembly4, a driver, a transformer, a sensor module, an input/output interface and a power supply; the control box is used for installing a main controller, a dehumidifier 8 controller, a fan heater 7 controller, an ozone machine 3 controller and CO2A controller; the main controller is an STM32 type singlechip; one end of the dehumidifier 8 controller is connected with the main controller, the other end of the dehumidifier 8 controller is connected with the dehumidifier, and the main controller sends a signal to control the dehumidifier 8 to work; one end of the controller of the warm air blower 7 is connected with the main controller, the other end of the controller of the warm air blower 7 is connected with the warm air blower 7, and the main controller sends signals to control the working mode of the warm air blower 7; one end of the controller of the ozone machine 3 is connected with the main controller, the other end of the controller of the ozone machine 3 is connected with the ozone machine 3, and the main controller sends out signals to control the work of the ozone machine 3; said CO2One end of the controller is connected with the main controller, and the other end is connected with the CO2Generator 6, main controller sends out signal to control CO2Operation of the generator 6; one end of a driver of the ventilation pipe assembly 4 is connected with a main controller, and the other end of the driver is connected with the ventilation pipe assemblies 4 at different parts, and the main controller sends signals to control the ventilation pipe assemblies 4 at corresponding positions to be opened and closed; the transformer converts alternating current output by the power supply into voltage required by the controller and the driver; the sensor module comprises a wind speed and wind volume sensor, a temperature and humidity sensor, an ozone concentration sensor and CO2A concentration sensor; the input/output interface is used for connecting the main controller, the dehumidifier controller, the fan heater controller, the ozone machine controller and the CO in series2The device comprises a controller, a ventilation pipe assembly driver, a transformer and a sensor module; the power supply can provide electric energy for the control system.
Claims (1)
1. A greenhouse air quality regulation and control device based on distributed active circulation is characterized by comprising a gas circulation device, a gas improvement device and a control system;
the gas circulating device comprises a main ventilating pipe, a distributed telescopic ventilating pipe, a gas transmission pipe and a fixed rope, wherein the main ventilating pipe is positioned on one side of the ground planting area and used for transmitting gas to the gas improving device; one end of the distributed telescopic ventilation pipe is connected with the main ventilation pipe, and the other end of the distributed telescopic ventilation pipe can freely stretch into gaps among rows of the planting area to suck gas; the air delivery pipe delivers the improved gas to the upper part of the planting area for active circulation; two ends of the fixed rope are fixed on the wall body of the greenhouse and are responsible for supporting the suspension ventilation pipe;
the gas improving device comprises a dehumidifier, a warm air blower, an ozone machine and CO2A generator, a vent assembly, a vent valve; the air inlet end of the dehumidifier is connected with the air outlet end of the main ventilating pipe, and the dehumidifier is used for dehumidifying the sucked gas; the air inlet of the fan heater is connected with the air outlet of the dehumidifier, and the fan heater sucks gas and heats the passing air; the heating power of the fan heater is adjustable; the ozone machine produces ozone and discharges the ozone into the greenhouse along with the air conveying pipe for sterilization and disinfection; said CO2The generator is connected into the air delivery pipeline to generate CO2And transporting to a planting area for CO2Fertilizing; the ventilation pipe assembly is used for connecting a dehumidifier, a warm air blower, an ozone machine and CO2A generator and a vent valve; the ventilation valve is used for controlling the on-off of the pipeline;
the control system comprises a control box, a master controller, a dehumidifier controller, a fan heater controller, an ozone machine controller and CO2The device comprises a controller, a ventilation valve driver, a transformer, a sensor module, an input/output interface and a power supply; the control box is used for installing a main controller, a dehumidifier controller, a fan heater controller, an ozone machine controller and CO2A controller; the main controller is an STM32 type singlechip; one end of the dehumidifier controller is connected with the main controller, the other end of the dehumidifier controller is connected with the dehumidifier, and the main controller sends a signal to control the dehumidifier to work; one end of the warm air blower controller is connected with the main controller, the other end of the warm air blower controller is connected with the warm air blower, and the main controller sends a signal to control the working mode of the warm air blower; one end of the ozone machine controller is connected with the main controller, the other end of the ozone machine controller is connected with the ozone machine, and the main controller sends out signals to control the work of the ozone machine; said CO2One end of the controller is connected with the main controller, and the other end is connected with the CO2Generator, main controller for sending signal to control CO2The operation of the generator; one end of the ventilation valve driver is connected with the main controller, the other end of the ventilation valve driver is connected with the ventilation valves at different parts, and the main controller sends signals to control the opening and closing of the ventilation valves at corresponding positions; the transformer converts the AC output by the power supply into controlVoltage required by a controller and a driver; the sensor module comprises a wind speed and wind volume sensor, a temperature and humidity sensor, an ozone concentration sensor and CO2A concentration sensor; the input/output interface is used for connecting the main controller, the dehumidifier controller, the fan heater controller, the ozone machine controller and the CO in series2The device comprises a controller, a ventilation valve driver, a transformer and a sensor module; the power supply can provide electric energy for the control system.
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| CN111226658A (en) * | 2020-03-06 | 2020-06-05 | 山东农业大学 | Greenhouse air quality regulation and control system and method based on distributed active circulation |
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