An automated greenhouse structure for improved environmental regulation

Abstract

The utility model discloses an automatic shed body structure of improvement greenhouse environment regulation and control, include: shed body, and the shed body builds on the ground, gas circulation system, gas circulation system includes gas pumping unit, gas return unit and gas filter unit, and the end of gas return unit is equipped with gas detection module and temperature detection module, heat compensation system, heat compensation system includes the phase change material filler filled in the double -layer spiral pipe inner chamber and heat compensation unit, and heat compensation unit sets up in the deep layer of soil, and the compensation unit is connected with double -layer spiral pipe, is used for absorbing geothermal, and the temperature of supplement circulation gas, temperature control system, temperature control system includes temperature monitoring unit and controller, and temperature monitoring unit, gas pumping unit, gas return unit and heat compensation system all are connected with controller, the utility model discloses through real -time monitoring and automatic regulation, accurate matching heat compensation demand, reduce energy loss, and give consideration to temperature stability and energy saving.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse technology, and in particular to an automated greenhouse structure for improving greenhouse environmental control. Background Technology

[0002] As facility agriculture develops towards large-scale, precision, and green practices, greenhouses, as the core carriers of controllable environment cultivation, have become crucial for improving crop photosynthetic efficiency, shortening growth cycles, and ensuring yield and quality through stable environmental parameter control. However, existing greenhouse environmental control technologies still have many shortcomings and are insufficient to meet the development needs of modern agriculture.

[0003] Current greenhouse temperature control mainly relies on fossil fuel heating or electric heating, which suffers from high energy consumption, significant pollution, and poor temperature stability. Firstly, the energy utilization rate of traditional heating methods is only 60%-70%, with an average daily energy consumption of 0.8-1.2 kWh per square meter of greenhouse, resulting in high operating costs. Furthermore, the combustion of coal and natural gas produces pollutants such as CO2 and SO2, which contradicts the concept of green agriculture. Secondly, the air inside the greenhouse has a low heat capacity, and traditional heating devices directly heat the air, which can easily lead to a sudden increase in local temperature (temperature difference can reach 5-8℃). Moreover, at night or in cold weather, heat is lost rapidly through the greenhouse film (temperature drop of 2-3℃ per hour), making it difficult to maintain the stable temperature required for crop growth at night (the suitable temperature for most crops at night is 15-18℃). It is impossible to achieve efficient heat storage and on-demand release.

[0004] Based on the above-mentioned technical problems, this utility model provides an automated greenhouse structure for improving greenhouse environmental control. Utility Model Content

[0005] The purpose of this invention is to provide an automated greenhouse structure that improves greenhouse environmental control, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides an automated greenhouse structure for improving greenhouse environmental control, comprising: A shed, which is erected on the ground; A gas circulation system, comprising an extraction unit, a return unit, and a gas filtration unit, wherein the extraction unit and the return unit are both arranged inside the shed, and the gas filtration unit comprises a double-layer spiral tube with filter adsorption material disposed in the interlayer of the double-layer spiral tube, wherein the extraction unit and the return unit are respectively connected to both ends of the double-layer spiral tube, and a gas detection module and a temperature detection module are installed at the end of the return unit; A thermal compensation system, comprising a phase change material filling the inner cavity of the double-layer spiral tube and a thermal compensation unit, wherein the thermal compensation unit is disposed in the deep soil layer and is connected to the double-layer spiral tube, for absorbing geothermal energy and replenishing the temperature of the circulating gas; A temperature control system, comprising a temperature monitoring unit and a controller, wherein the temperature monitoring unit, the air extraction unit, the air return unit, and the thermal compensation system are all connected to the controller.

[0007] According to the automated greenhouse structure for improving greenhouse environmental control provided by this utility model, the air extraction unit includes: The exhaust horizontal pipes are arranged in several groups at equal intervals on the bottom of the shed, and adjacent exhaust horizontal pipes are connected by connecting pipes. The main exhaust pipe is connected to one of the sets of horizontal exhaust pipes, and the other end of the main exhaust pipe is connected to one end of the double-layer spiral tube through a connector. An air pump is installed on the main air extraction pipe.

[0008] According to the automated greenhouse structure for improving greenhouse environmental control provided by this utility model, the air return unit includes: The return air horizontal pipes are fixed in several groups at the top of the greenhouse body, and adjacent return air horizontal pipes are connected by connecting pipes. The return gas main pipe has a first three-way valve installed at the tail end of the double-layer spiral tube. One end of the return gas main pipe is connected to the first three-way valve. A second three-way valve is installed in the middle of the return gas main pipe. A return pipe is installed on the second three-way valve and is connected to the extraction gas main pipe. The gas detection module and the temperature detection module are both arranged on the return gas main pipe and located between the first three-way valve and the second three-way valve. A return air pump is installed on the return air main pipe.

[0009] According to the automated greenhouse structure for improving greenhouse environment control provided by this utility model, baffles are detachably connected to both ends of the double-layer spiral tube. Several through holes are evenly spaced on the baffles, and the through holes communicate with the interlayer of the double-layer spiral tube. The connectors are respectively installed on the baffles.

[0010] According to the automated greenhouse structure for improving greenhouse environmental control provided by this utility model, the heat compensation unit includes heat pipes. Several groups of heat pipes are arranged in the deep soil layer. The several groups of heat pipes are respectively connected to the side wall of the double-layer spiral tube and communicate with the inner layer of the double-layer spiral tube. An electromagnetic valve is provided between the heat pipes and the double-layer spiral tube.

[0011] According to the automated greenhouse structure for improving greenhouse environment control provided by this utility model, both the temperature detection module and the temperature monitoring unit are temperature sensors.

[0012] The present invention discloses the following technical effects: The double-layered spiral tube filter adsorption material can filter dust, harmful microorganisms and other impurities in the air inside the greenhouse, ensuring the cleanliness of the air. On the other hand, it can effectively slow down the air flow rate, prolonging the residence time of the air in the spiral tube. This allows for more time to come into contact with the heat released by the phase change material in the inner cavity, greatly improving the heat exchange efficiency and avoiding heat waste caused by excessively fast air flow. This provides crops with a clean and temperature-appropriate growing air environment. The thermal compensation system relies on deep soil thermal compensation units to absorb geothermal energy, powering the phase change material filler. Geothermal energy, as a clean energy source, reduces the energy consumption of traditional heating. The phase change material stores heat and releases it as needed, working in conjunction with filter adsorption materials to slow down gas flow and facilitate sufficient heat exchange. Simultaneously, the temperature control system, through real-time monitoring and automatic adjustment, precisely matches the thermal compensation requirements, reducing energy loss and balancing temperature stability and energy efficiency. The temperature control system links the temperature monitoring unit, air extraction unit, air return unit, and heat compensation system. It can automatically collect data on temperature and gas composition inside the greenhouse and automatically adjust the operating status of each system through the controller, reducing manual intervention. In addition, the design of the filter adsorption material to slow down gas flow makes the heat exchange and gas purification process more controllable, avoids fluctuations in environmental parameters, ensures that crops are always in the optimal growth environment, and improves planting stability and yield. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Fig. 1 This is a schematic diagram of the automated greenhouse structure for improving greenhouse environmental control according to this utility model; Fig. 2 This is a schematic diagram of the structure of the baffle of this utility model.

[0015] The components include: 1. Shelter body; 2. Double-layer spiral pipe; 3. Horizontal exhaust pipe; 4. Main exhaust pipe; 5. Exhaust pump; 6. Horizontal return pipe; 7. Main return pipe; 8. Return pipe; 9. Return pump; 10. Baffle; 11. Through hole; 12. Heat pipe; 13. Solenoid valve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figs. 1-2 This utility model provides an automated greenhouse structure 1 for improving greenhouse environmental control, comprising: Shed 1, which is erected on the ground; The gas circulation system includes an extraction unit, a return unit, and a gas filtration unit. The extraction unit and the return unit are both arranged inside the shed 1. The gas filtration unit includes a double-layer spiral tube 2. The interlayer of the double-layer spiral tube 2 is provided with filter adsorption material. The extraction unit and the return unit are respectively connected to the two ends of the double-layer spiral tube 2. The end of the return unit is equipped with a gas detection module and a temperature detection module. The thermal compensation system includes a phase change material filling material and a thermal compensation unit filled in the inner cavity of the double-layer spiral tube 2. The thermal compensation unit is set in the deep soil layer and is connected to the double-layer spiral tube 2 to absorb geothermal heat and replenish the temperature of the circulating gas. The temperature control system includes a temperature monitoring unit and a controller. The temperature monitoring unit, the air extraction unit, the air return unit, and the thermal compensation system are all connected to the controller.

[0019] This invention utilizes a temperature control system as its core to achieve coordinated operation, with the greenhouse structure 1 serving as the basic carrier built on the ground. A temperature monitoring unit collects real-time ambient temperature data from inside the greenhouse, while a gas detection module and a temperature detection module at the end of the return air unit simultaneously monitor gas composition and return air temperature. All data is transmitted to the controller. When adjustment is needed, the controller activates the extraction unit, drawing gas from inside the greenhouse to the double-layered spiral tube 2 of the gas filtration unit. As the gas flows through the filter adsorption material in the interlayer, impurities are filtered out, and the flow rate is slowed by the material's obstruction. Simultaneously, a deep soil heat compensation unit absorbs geothermal heat, transferring heat to the phase change material filling material inside the double-layered spiral tube 2. The phase change material releases heat, fully exchanging heat with the slowly flowing gas. The heat-exchanged gas is then returned to the greenhouse via the return air unit. If the temperature monitoring unit detects that the temperature inside the greenhouse is below standard, the controller further adjusts the heating intensity of the heat compensation system and the operating frequency of the gas circulation system until the environmental parameters inside the greenhouse stabilize within a suitable range.

[0020] The design has been further optimized, and the air extraction unit includes: The horizontal exhaust pipe 3 is arranged in several groups at equal intervals at the bottom of the shed body 1, and adjacent horizontal exhaust pipes 3 are connected by connecting pipes. The main exhaust pipe 4 is connected to one of the sets of horizontal exhaust pipes 3, and the other end of the main exhaust pipe 4 is connected to one end of the double-layer spiral pipe 2 through a connector. Air pump 5 is installed on the main air extraction pipe 4.

[0021] The extraction unit uses a "multi-point uniform collection + directional delivery" approach to extract gas, and its operation requires linkage with the temperature control system's controller. When the controller determines that gas circulation needs to be started based on signals from the temperature sensor (temperature monitoring unit) or gas detection module, it triggers the extraction pump 5 to operate. Since the extraction horizontal pipes 3 are arranged parallel at equal intervals at the bottom of the shed 1, and adjacent horizontal pipes are connected by connecting pipes, a "horizontal coverage + vertical aggregation" collection network is formed. The bottom horizontal pipes can uniformly capture the gas in the lower area of ​​the shed (avoiding uneven environment caused by gas stagnation in the lower part). The gas collected by each horizontal pipe is aggregated to the main extraction pipe 4 through the connecting pipe. The extraction pump 5 provides negative pressure power, which transports the aggregated gas in the main pipe to one end of the double-layer spiral pipe 2 through the connector, providing a stable gas source for subsequent gas filtration and heat exchange. At the same time, the bottom extraction design and the subsequent top return air form a vertical airflow circulation, improving the overall gas flow in the shed.

[0022] The design has been further optimized, and the return gas unit includes: Several sets of return air horizontal pipes 6 are fixed at the top inside the shed 1, and adjacent return air horizontal pipes 6 are connected by connecting pipes. The return gas main pipe 7 and the tail end of the double-layer spiral pipe 2 are equipped with a first three-way valve. One end of the return gas main pipe 7 is connected to the first three-way valve. A second three-way valve is installed in the middle of the return gas main pipe 7. A return pipe 8 is installed on the second three-way valve. The return pipe 8 is connected to the extraction gas main pipe 4. The gas detection module and the temperature detection module are both arranged on the return gas main pipe 7 and located between the first three-way valve and the second three-way valve. Return air pump 9 is installed on the return air main pipe 7.

[0023] The gas return unit achieves precise gas return through "directional delivery + compliance judgment + closed-loop reflux," requiring the coordinated operation of a gas detection module, a temperature sensor (temperature detection module), and a controller. First, the gas return pump 9 provides the power for gas delivery. The gas, after being processed by the double-layer spiral tube 2, enters the main gas return pipe 7 through the first three-way valve at the end of the double-layer spiral tube 2. Within the main gas return pipe 7, the gas flows through the gas detection module and temperature sensor located between the first and second three-way valves. These sensors respectively detect the gas's cleanliness (such as residual impurities) and real-time temperature, and transmit the data to the controller. If the test results meet the standards (gas is clean, temperature meets the requirements of the greenhouse), the controller controls the second three-way valve to keep the "return gas main pipe 7 - return gas horizontal pipe 6" passage unobstructed. The gas is delivered to the return gas horizontal pipe 6 at the top of the greenhouse 1 via the return gas pump 9 (the top arrangement allows the returned gas to diffuse from top to bottom, forming a convection circulation with the bottom extraction). Then, through the even distribution of multiple sets of horizontal pipes and connecting pipes, the qualified gas is released to various areas of the greenhouse. If the test results do not meet the standards (such as the temperature is too low or impurities are not filtered), the controller controls the second three-way valve to switch to the "return gas main pipe 7 - return pipe 8" passage. The gas is delivered back to the extraction main pipe 4 via the return pipe 8 and re-enters the double-layer spiral pipe 2 for filtration and heat exchange, forming a closed-loop regulation to ensure that the returned gas always meets the environmental requirements.

[0024] In a further optimized design, baffles 10 are detachably connected to both ends of the double-layer spiral tube 2. Several through holes 11 are equally spaced on the baffles 10, which are connected to the interlayer of the double-layer spiral tube 2. Connectors are installed on the baffles 10 respectively.

[0025] The removable baffles 10 at both ends of the double-layer spiral tube 2 serve the core function of "guiding gas flow and facilitating maintenance of the filter material." Their structural design is directly related to the gas filtration and heat exchange processes. The through holes 11 on the baffles 10 are connected to the interlayer (the area filled with filter adsorption material) of the double-layer spiral tube 2, and the connector (the component connecting the extraction / return main pipe 7) is fixed to the baffles 10. When the gas delivered by the extraction unit enters the baffles 10 through the connector, it flows directionally into the interlayer of the double-layer spiral tube 2 along the through holes 11 of the baffles 10, forcing the gas to pass through the filter adsorption material in the interlayer (preventing the gas from bypassing the filter material and flowing directly). At the same time, the evenly spaced through holes 11 allow the gas to be more evenly distributed in the interlayer, ensuring full contact with the filter adsorption material. This not only improves the impurity filtration effect but also slows down the gas flow rate through the material, allowing sufficient time for subsequent heat exchange with the inner phase change material. In addition, the baffle 10 is detachable. When the filter adsorption material is saturated or fails, the baffle 10 can be directly removed to replace or clean the material in the interlayer without disassembling the entire spiral tube, reducing maintenance costs and downtime, and ensuring the continuous stability of filtration and heat exchange functions.

[0026] Further optimization of the scheme: the heat compensation unit includes heat pipes 12, and several groups of heat pipes 12 are arranged in the deep soil layer. The several groups of heat pipes 12 are respectively connected to the side wall of the double-layer spiral pipe 2 and communicate with the inner layer of the double-layer spiral pipe 2. A solenoid valve 13 is provided between the heat pipes 12 and the double-layer spiral pipe 2.

[0027] The heat compensation unit is based on "efficient geothermal absorption + precise heat regulation". It achieves heat compensation through the linkage of heat pipe 12, solenoid valve 13 and temperature control system. Several sets of heat pipes 12 are buried deep in the soil. Taking advantage of the stable temperature of the deep soil, they continuously absorb geothermal energy and conduct the heat to the inside of the heat pipes 12. The heat pipes 12 are connected to the side wall of the double-layer spiral pipe 2 and communicate with the inner layer (the area filled with phase change material). The solenoid valve 13 is installed at the connection node between the heat pipe 12 and the spiral pipe, which acts as a "switch" for heat transfer. When the temperature sensor (detecting the temperature of the processed gas) or the temperature monitoring unit (detecting the ambient temperature inside the greenhouse) transmits a signal to the controller indicating that the temperature is lower than the set value, the controller triggers the solenoid valve 13 to open. The geothermal heat absorbed in the heat pipe 12 is transferred to the inner layer of the double-layer spiral tube 2 through the connecting channel, supplementing the phase change material in the inner layer with heat. After absorbing heat, the phase change material maintains a stable heat release state, transferring the heat to the slowly flowing gas in the interlayer, increasing the gas temperature and achieving heat compensation. When the temperature rises back to the set value, the controller controls the solenoid valve 13 to close, cutting off the heat transfer between the heat pipe 12 and the spiral tube, preventing excessive heat from causing the temperature inside the greenhouse to be too high, accurately matching the heat compensation requirements, and at the same time using geothermal energy to reduce the consumption of traditional energy, achieving energy-saving operation.

[0028] The design has been further optimized so that both the temperature detection module and the temperature monitoring unit are temperature sensors.

[0029] The electrical components in this embodiment need to be selected according to actual needs, and no specific limitations are made in this embodiment.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An automated greenhouse structure (1) for improving greenhouse environmental control, characterized in that, include: A shed (1) is erected on the ground; A gas circulation system, comprising an extraction unit, a return unit, and a gas filtration unit, wherein the extraction unit and the return unit are both arranged inside the shed (1), the gas filtration unit comprises a double-layer spiral tube (2), wherein a filter adsorption material is provided in the interlayer of the double-layer spiral tube (2), the extraction unit and the return unit are respectively connected to the two ends of the double-layer spiral tube (2), and a gas detection module and a temperature detection module are installed at the end of the return unit; A thermal compensation system, comprising a phase change material filling material and a thermal compensation unit filling the inner cavity of the double-layer spiral tube (2), wherein the thermal compensation unit is disposed in the deep soil layer and is connected to the double-layer spiral tube (2) for absorbing geothermal heat and replenishing the temperature of the circulating gas; A temperature control system, comprising a temperature monitoring unit and a controller, wherein the temperature monitoring unit, the air extraction unit, the air return unit, and the thermal compensation system are all connected to the controller.

2. The automated greenhouse structure (1) for improving greenhouse environmental control according to claim 1, characterized in that, The air extraction unit includes: The horizontal exhaust pipe (3) is arranged in several groups at equal intervals at the bottom of the shed (1), and adjacent horizontal exhaust pipes (3) are connected by connecting pipes. The main exhaust pipe (4) is connected to one of the sets of horizontal exhaust pipes (3), and the other end of the main exhaust pipe (4) is connected to one end of the double-layer spiral pipe (2) through a connector. An air pump (5) is installed on the main air extraction pipe (4).

3. The automated greenhouse structure (1) for improving greenhouse environmental control according to claim 2, characterized in that, The return air unit includes: A return air horizontal pipe (6) is fixed in several sets at the top inside the shed (1), and adjacent return air horizontal pipes (6) are connected by the connecting pipe. The return gas main pipe (7) is equipped with a first three-way valve at the tail end of the double-layer spiral pipe (2). One end of the return gas main pipe (7) is connected to the first three-way valve. A second three-way valve is installed in the middle of the return gas main pipe (7). A return pipe (8) is installed on the second three-way valve. The return pipe (8) is connected to the extraction gas main pipe (4). The gas detection module and the temperature detection module are both arranged on the return gas main pipe (7) and located between the first three-way valve and the second three-way valve. A return air pump (9) is installed on the return air main pipe (7).

4. The automated greenhouse structure (1) for improving greenhouse environmental control according to claim 3, characterized in that, The two ends of the double-layer spiral tube (2) are respectively detachably connected to baffles (10). Several through holes (11) are opened at equal intervals on the baffles (10). The through holes (11) are connected to the interlayer of the double-layer spiral tube (2). The connectors are respectively installed on the baffles (10).

5. The automated greenhouse structure (1) for improving greenhouse environmental control according to claim 1, characterized in that, The heat compensation unit includes a heat pipe (12), which is arranged in several groups in the deep soil layer. The several groups of heat pipes (12) are respectively connected to the side wall of the double-layer spiral tube (2) and communicate with the inner layer of the double-layer spiral tube (2). A solenoid valve (13) is provided between the heat pipe (12) and the double-layer spiral tube (2).

6. The automated greenhouse structure (1) for improving greenhouse environmental control according to claim 1, characterized in that, Both the temperature detection module and the temperature monitoring unit are temperature sensors.

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