A flow tee post of a multi-span greenhouse and a production unit of a multi-span greenhouse

Abstract

The application discloses a kind of airflow three-way stand of continuous ridge greenhouse and the production unit of continuous ridge greenhouse, including airflow column body and three-way fan, airflow column body lower end is connected to ground, airflow column body lower part is connected with three-way fan, airflow column body upper portion is supported and connected with the beam structure of continuous ridge greenhouse on the two sides of first direction, the two sides of airflow column body upper portion in second direction are used in cooperation with beam structure, and cooperate after sealed connection heat insulation sheet that continuous ridge greenhouse is arranged transversely in air, and beam structure is enclosed in the circumference of airflow column body with heat insulation sheet, airflow cavity is vertically provided in the middle part of airflow column body, airflow inlet is provided in the upper portion of airflow cavity, and airflow outlet is provided in the lower portion, airflow inlet is arranged above heat insulation sheet, and airflow outlet is connected with three-way fan.The application can not only guarantee the sealed connection of heat insulation sheet and beam structure, column structure in continuous ridge greenhouse, but also effectively transport and guide hot air above heat insulation sheet, and the overall structure design is compact, easy to use, and suitable for popularization and application.

Description

Technical Field

[0001] This invention relates to the field of energy-saving technology for multi-span greenhouse buildings, and in particular to an airflow three-way column for a multi-span greenhouse and a production unit for a multi-span greenhouse. Background Technology

[0002] In multi-span greenhouses, installing laterally expandable insulation sheets at the beam level is a crucial measure to prevent heat loss through the transparent roof structure. However, to achieve the desired energy-saving effect, the connection between the insulation sheets and the beam and column structures must be airtight, requiring the gaps at the joints to be as small as possible. Since a large amount of usable hot air accumulates above the insulation sheets during the day, an efficient approach is to guide this hot air from above each pre-defined unit area within the greenhouse to the ground and / or underground for utilization, achieving heat storage, warming, and oxygenation. However, using vertically installed dedicated pipes to transport this hot air presents a conflict between the vertical placement of these pipes and the requirement for a tight seal at the joints between the insulation sheets and the beam and column structures. Summary of the Invention

[0003] The purpose of this invention is to provide an airflow tee column for a multi-span greenhouse and a production unit for a multi-span greenhouse, thereby solving the technical problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention discloses an airflow three-way support column for a multi-span greenhouse, comprising an airflow column and three ventilation fans. The lower end of the airflow column is connected to the ground, and the three ventilation fans are connected to the lower part of the airflow column. The upper part of the airflow column supports the beam structure connecting the multi-span greenhouse on two sides in a first direction. The upper part of the airflow column cooperates with the beam structure on two sides in a second direction. This cooperation means that the vertical surface of the beam structure and the vertical surface of the airflow column should be as close as possible to a single vertical surface, and the cooperation should seal the horizontally arranged insulation sheet in the air of the multi-span greenhouse. This sealing connection means that the gaps at the contact points between the edges of the insulation sheet and the corresponding vertical surfaces of the beam structure and the airflow column should be as small as possible, ensuring a tight seal. The connection can be a fixed connection or a movable connection. The first direction is perpendicular to the second direction. The beam structure and the heat insulation sheet surround the circumference of the airflow column. An airflow cavity is vertically arranged in the middle of the airflow column. An airflow inlet is provided at the upper part of the airflow cavity, and an airflow outlet is provided at the lower part. The airflow inlet is connected to the airflow outlet through the airflow cavity. The airflow inlet is located above the heat insulation sheet, and the airflow outlet is connected to the three ventilation fans so that the hot air above the heat insulation sheet is transported to the ground in sequence through the airflow inlet, the airflow cavity, the airflow outlet, and the three ventilation fans under the action of the three ventilation fans.

[0006] The airflow column comprises a single pipe, the airflow cavity is the lumen of the single pipe, the airflow inlet is the upper opening of the single pipe, and the airflow outlet is a through hole opened in the lower wall of the single pipe; or,

[0007] The airflow column comprises vertical pipes, air guide pipes, and horizontal components. Multiple vertical pipes are spaced apart. If there are two vertical pipes, they can be spaced apart along either a first direction or a second direction. If there are four vertical pipes, the line connecting them after spacing forms a rectangle. The horizontal components fix the multiple vertical pipes together into a composite body. The air guide pipes are located within the composite body, spaced at the middle along the second direction and / or the first direction. The airflow cavity is the cavity of the air guide pipe, the airflow inlet is the upper opening of the air guide pipe, and the airflow outlet is the lower opening of the air guide pipe. If the cross-section of the air guide pipe cannot fully match the space between the multiple vertical pipes, resulting in a gap, it can be sealed with a pre-set material to prevent airflow convection through this gap at the layer where the insulation sheet is located. It should be noted that when the airflow column comprises a single pipe, the airflow outlet is a through hole opened in the lower part of the pipe wall. One through hole can be opened in the lower part of the single pipe wall on the same side, or multiple through holes can be opened in the lower part of the pipe wall on different sides. If multiple through holes are opened, multiple three-way ventilation fans need to be set accordingly. The airflow gate valves in each three-way ventilation fan need to be used in coordination to prevent airflow short circuit and affect the use effect. Alternatively, the airflow column comprises a vertical pipe, an air guide pipe and a horizontal component. One air guide pipe can be set in the middle interval along the second direction and / or the first direction in the composite body, or multiple air guide pipes can be set.

[0008] Furthermore, the three-way ventilation fan includes a three-way housing, a fan, and an airflow gate valve. The three-way housing includes a housing wall and a housing cavity. The housing wall is connected to the wall of the single pipe, or the housing wall is connected to the composite.

[0009] The shell wall is provided with a hot air inlet, a cold air inlet and an air outlet, and the hot air inlet is connected to the air outlet.

[0010] The impeller of the fan is disposed inside the housing cavity. The impeller is rotatably connected to the housing wall near the air outlet. The cold air inlet is disposed between the impeller and the hot air inlet. The airflow gate valve is disposed between the cold air inlet and the hot air inlet, and is used to block the cold air inlet and open the hot air inlet, or to open the cold air inlet and block the hot air inlet. The fan applies negative pressure to the cold air inlet or the hot air inlet and applies positive pressure to the air outlet.

[0011] Alternatively, the fan is disposed outside the housing cavity, the fan is close to the air outlet and connected to the housing wall, the fan intake port is connected to the air outlet, the cold air inlet is disposed between the air outlet and the hot air inlet, the airflow gate valve is disposed between the cold air inlet and the hot air inlet, used to block the cold air inlet and open the hot air inlet, or used to open the cold air inlet and block the hot air inlet, the fan intake port applies negative pressure to the air outlet and the cold air inlet or the hot air inlet, and the fan applies positive pressure to the fan exhaust port;

[0012] Hot air located above the pre-set insulation sheet inside the multi-span greenhouse is drawn into the airflow inlet under the negative pressure of the fan, and flows through the airflow cavity and the airflow outlet through the hot air inlet into the shell cavity, and then is discharged from the outlet or the fan exhaust port, and enters the pre-set airflow outlet device under positive pressure.

[0013] Furthermore, it also includes a photovoltaic power station, a battery, and an on / off controller. The photovoltaic panels of the photovoltaic power station are connected to the pipe of the airflow column. The photovoltaic power station is electrically connected to the battery. The airflow gate valve is an electric airflow gate valve. The battery is electrically connected to the fan and the electric airflow gate valve. The on / off controller is used to control at least the on / off of the fan, the switching of the electric airflow gate valve, and the on / off of the hot air inlet and the cold air inlet.

[0014] The present invention also provides a production unit of a multi-span greenhouse, including an airflow tee column of the multi-span greenhouse, a cultivation container assembly and a substrate parallel heating connection pipe, wherein a rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit.

[0015] The cultivation container assemblies are arranged in rows along the first direction, and multiple rows of cultivation container assemblies are arranged parallel to each other along the second direction on the ground or suspended above the ground of the fruit and vegetable planting production unit. Each cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is filled in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability. In practice, a preferred solution is to set the first direction as a north-south direction and the second direction as an east-west direction. Multiple rows of cultivation container assemblies are arranged parallel to each other along the second direction on the ground or suspended above the ground of the fruit and vegetable planting production unit, so that the fruits and vegetables in each row receive relatively uniform sunlight during the day. The cultivation substrate is a type of solid granular material with good air permeability. This invention does not limit the type of substrate. The substrate airflow heat dissipation pipe is connected to the wall of the cultivation container. The substrate airflow heat dissipation pipe and the wall of the cultivation container are integrated into one piece and manufactured in one go in the factory.

[0016] Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating unit. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to each of the substrate heating interfaces.

[0017] The present invention also provides a production unit for a multi-span greenhouse, comprising an airflow tee column, a diversion joint, a cultivation rack, a cultivation container assembly, a substrate parallel heating connection pipe, a water storage container assembly, and a water storage parallel heating connection pipe. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit.

[0018] The diversion connector includes a main inlet, an oxygenation diversion port, and a heat storage diversion port. The main inlet is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit. The main inlet is connected to the oxygenation diversion port and the heat storage diversion port respectively.

[0019] The cultivation rack includes an upper cavity and a lower cavity. The upper cavity serves as a planting area, and the lower cavity serves as a heat storage area. The cultivation racks are arranged in rows along the first direction, and multiple rows of cultivation racks are arranged parallel to each other along the second direction on the ground of the fruit and vegetable planting and production unit.

[0020] The cultivation container assembly is located in the upper cavity of the cultivation rack. The cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is contained in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability. The hot air above the insulation sheet is humid air. When the humid air enters the substrate airflow heat dissipation pipe, condensation will be generated. The condensation will seep out from the water permeation holes to prevent blockage of the substrate airflow heat dissipation pipe.

[0021] Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating section. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the oxygenation branch port, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to each of the substrate heating interfaces.

[0022] The water storage container assembly is located in the lower cavity of the cultivation rack. The water storage container assembly includes a water storage container wall, a water storage container cavity, a water storage airflow heat dissipation pipe, and water. The water is contained in the water storage container cavity and serves as a heat storage medium for storing heat energy. The water storage airflow heat dissipation pipe is connected to the water storage container wall. The water storage container wall can be made of soft or hard material, without limitation. The water storage container cavity can be a closed water bag or tank, or an open water trough, without limitation. The water storage airflow heat dissipation pipe is connected to the water storage container wall and can be manufactured as a composite product in the factory. A waterproof connector can be provided on the water storage container wall. The water storage container wall and the water storage airflow heat dissipation pipe are combined into one unit through the waterproof connector. In order to store the stored heat energy for a long time for emergency use in cold weather, the water storage container wall can include a heat insulation material of a predetermined thickness, such as foam material.

[0023] Within one of the fruit and vegetable planting and production units, each of the water storage airflow heat dissipation pipes is provided with a water storage heating interface at one end near the heating section. The main water storage heating pipe of the parallel water storage heating connection fitting is connected to the heat storage branch port, and the branch water storage heating pipe of the parallel water storage heating connection fitting is connected to each of the water storage heating interfaces.

[0024] The present invention also provides a production unit of a multi-span greenhouse, including an airflow tee column of the multi-span greenhouse, a cultivation bed assembly and a sheet parallel heating connection pipe fitting. The rectangular ground formed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit.

[0025] The cultivation bed assembly is rectangular and is set on the ground of the fruit and vegetable planting production unit. The cultivation bed assembly includes a permeable sheet and a sheet airflow heat dissipation pipe. A plurality of sheet airflow heat dissipation pipes are connected in parallel and spaced apart to the permeable sheet. The sheet airflow heat dissipation pipes are provided with holes for water and air permeability. The sheet airflow heat dissipation pipes and the permeable sheet can be combined into one product in the factory.

[0026] Within one of the fruit and vegetable planting and production units, each of the sheet airflow heat dissipation pipes has a sheet heating interface at one end near the heating section. The main sheet heating pipe of the sheet parallel heating connection fitting is connected to the air outlet of the heating section or the exhaust port of the fan of the heating section, and the branch sheet heating pipe of the sheet parallel heating connection fitting is connected to each of the sheet heating interfaces. In practical applications, a layer of fine sand can be laid on the ground within one of the fruit and vegetable planting and production units, and then the cultivation bed assembly can be laid on top, so that the sheet airflow heat dissipation pipes are embedded in the fine sand. The permeable sheet is supported by the fine sand, and the cultivation containers for fruits and vegetables or the seedling containers for fruit and vegetable seedling cultivation can be placed directly on the permeable sheet.

[0027] The present invention also provides a production unit of a multi-span greenhouse, including an airflow tee column of the multi-span greenhouse, an underground airflow heat dissipation pipe assembly and an underground parallel heating connection pipe fitting. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit.

[0028] The underground airflow heat dissipation pipe assembly is rectangular and is installed in the ground below the ground of the fruit and vegetable planting and production unit. The underground airflow heat dissipation pipe assembly includes multiple underground airflow heat dissipation pipes arranged in parallel and spaced apart. The underground airflow heat dissipation pipes are provided with holes for water and air to pass through.

[0029] Within one of the fruit and vegetable planting and production units, each of the underground airflow heat dissipation pipes is provided with an underground heating interface at one end near the heating unit. The underground heating main pipe of the underground parallel heating connection pipe is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit. The underground heating branch pipe of the underground parallel heating connection pipe is connected to each of the underground heating interfaces. In specific applications, trenches can be opened parallel to each other at a preset interval along the ground in the first direction for laying each of the underground airflow heat dissipation pipes. Trenches can be opened near the heating unit in the second direction for laying the underground heating main pipe of the underground parallel heating connection pipe. The underground heating branch pipes of the underground parallel heating connection pipe are laid at the intersection of the trenches in the first and second directions so that each branch pipe is connected to the corresponding underground airflow heat dissipation pipe. To improve the efficiency of trenching and pipe laying, trenches can be dug in one direction, spanning multiple fruit and vegetable planting and production units. Near multiple heating sections, trenches can be dug in a second direction. A single underground airflow radiator pipe is then laid in the trench in the first direction, and the main underground heating pipe of the underground parallel heating connection fitting is laid in the trench in the second direction. The entire underground airflow radiator pipe is cut off at the intersection of the two trenches, and each section of the underground airflow radiator pipe is connected to the corresponding underground heating branch pipe of the underground parallel heating connection fitting. Alternatively, a section of the main underground heating pipe of the underground parallel heating connection fitting can be added to the trench in the second direction. This main pipe connects to the above-ground space of the fruit and vegetable planting and production unit, and the underground heating branch pipe of the underground parallel heating connection fitting on it connects to the other end of the underground airflow radiator pipe. This allows for the direct release of heat energy from the underground soil within a fruit and vegetable planting and production unit to the above-ground space of that unit during cold nights, thus alleviating the cooling of that space.

[0030] The present invention also provides a production unit for a multi-span greenhouse, including an airflow tee column, a diversion joint, a cultivation container assembly, a substrate parallel heating connection pipe, an underground airflow heat dissipation pipe assembly, and an underground parallel heating connection pipe. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit.

[0031] The diversion connector includes a main inlet, an oxygenation diversion port, and a heat storage diversion port. The main inlet is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit. The main inlet is connected to the oxygenation diversion port and the heat storage diversion port respectively.

[0032] The cultivation container assemblies are arranged in rows along the first direction, and multiple rows of cultivation container assemblies are arranged parallel to each other along the second direction at intervals on the ground of the fruit and vegetable planting and production unit or suspended above the ground. Each cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is filled in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability.

[0033] Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating section. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the oxygenation branch port, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to the substrate heating interface.

[0034] The underground airflow heat dissipation pipe assembly is rectangular and is installed in the ground below the ground of the fruit and vegetable planting and production unit. The underground airflow heat dissipation pipe assembly includes multiple underground airflow heat dissipation pipes arranged in parallel and spaced apart. The underground airflow heat dissipation pipes are provided with holes for water and air to pass through.

[0035] Within one of the fruit and vegetable planting and production units, each of the underground airflow heat dissipation pipes is provided with an underground heating interface at one end near the heating section. The underground heating main pipe of the underground parallel heating connection pipe is connected to the heat storage branch port, and the underground heating branch pipe of the underground parallel heating connection pipe is connected to each of the underground heating interfaces.

[0036] The present invention also provides a production unit for a multi-span greenhouse, including an airflow tee column, a cultivation rack, a cultivation hole plate, a root-use enclosure sheet assembly, and a root parallel heating connection pipe fitting. The rectangular ground formed by four adjacent airflow tee columns is set as a root plant planting production unit, and one of the airflow tee columns is set as the heating part of the root plant planting production unit.

[0037] The cultivation rack includes an upper cavity and a lower cavity. The upper cavity serves as a development site for the above-ground organs of the root plant, and the lower cavity serves as a development site for the underground organs of the root plant. The cultivation racks are arranged in rows along the first direction, and multiple rows of the cultivation racks are arranged parallel to each other along the second direction on the ground of the root plant planting and production unit.

[0038] The cultivation perforated plate is disposed in the upper cavity of the cultivation rack for fixing root plants, and the root containment sheet assembly is disposed in the lower cavity of the cultivation rack for creating a microclimate for root development. The root containment sheet assembly includes a root containment sheet and a root airflow cooling pipe, the root airflow cooling pipe being connected to the root containment sheet and having perforations for water and air permeability. The root airflow cooling pipe and the root containment sheet can be combined into an integrated structure in the factory to manufacture the product.

[0039] Within one of the root plant cultivation and production units, each of the root airflow heat dissipation pipes is provided with a root heating interface at one end near the heating section. The main root heating pipe of the root parallel heating connection fitting is connected to the air outlet of the heating section or the exhaust port of the fan of the heating section, and the branch root heating pipe of the root parallel heating connection fitting is connected to each of the root heating interfaces.

[0040] The present invention also provides a production unit for a multi-span greenhouse, including an airflow tee column of the multi-span greenhouse, an edible fungus planting rack, an edible fungus enclosure sheet assembly, and a parallel heating connection pipe for edible fungus. The rectangular ground formed by four adjacent airflow tee columns is set as an edible fungus planting production unit, and one of the airflow tee columns is set as the heating part of the edible fungus planting production unit.

[0041] The edible mushroom cultivation racks are arranged in rows along the first direction, and multiple rows of the edible mushroom cultivation racks are arranged parallel to each other at intervals along the second direction on the ground of the edible mushroom cultivation production unit;

[0042] The edible mushroom enclosure sheet assembly is arranged around the periphery of the edible mushroom cultivation and production unit to create a microclimate for the development of edible mushrooms. The edible mushroom enclosure sheet assembly includes an edible mushroom enclosure sheet and an edible mushroom airflow heat dissipation pipe. The edible mushroom airflow heat dissipation pipe is connected to the edible mushroom enclosure sheet and has holes for water and air permeability. The edible mushroom airflow heat dissipation pipe and the edible mushroom enclosure sheet can be manufactured into an integrated composite structure product in the factory.

[0043] Within one of the edible fungus cultivation and production units, each of the edible fungus airflow heat dissipation pipes is provided with an edible fungus heating interface at one end near the heating unit. The main edible fungus heating pipe of the parallel heating connection fitting is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit, and the branch edible fungus heating pipe of the parallel heating connection fitting is connected to each of the edible fungus heating interfaces.

[0044] The present invention also provides a production unit for a multi-span greenhouse, including an airflow tee column of the multi-span greenhouse, a three-dimensional biological cultivation rack, a biological containment sheet assembly, and a biological parallel heating connection pipe. At least one three-dimensional biological cultivation production unit is set up on a rectangular ground surrounded by four adjacent airflow tee columns, and each airflow tee column near the three-dimensional biological cultivation production unit serves as the heating part of the three-dimensional biological cultivation production unit.

[0045] The three-dimensional biological cultivation production unit is equipped with multiple layers of the three-dimensional biological cultivation racks on the ground.

[0046] The biological containment sheet assembly is arranged around the periphery of the three-dimensional biological cultivation rack to create a microclimate for biological development. The biological containment sheet assembly includes a biological containment sheet and a biological airflow heat dissipation pipe. The biological airflow heat dissipation pipe is connected to the biological containment sheet and has holes for water and air permeability. The biological airflow heat dissipation pipe is connected to the biological containment sheet and can be manufactured into a composite structure product with an integrated structure in the factory.

[0047] Within one of the aforementioned three-dimensional biological cultivation production units, each of the biological airflow heat dissipation pipes is provided with a biological heating interface at one end near the heating section. The main biological heating pipe of the biological parallel heating connection fitting is connected to the air outlet of the heating section or the exhaust port of the fan of the heating section, and the branch biological heating pipe of the biological parallel heating connection fitting is connected to the biological heating interface.

[0048] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0049] The airflow tee column and production unit of the multi-span greenhouse of this invention, through a rationally designed airflow tee column, resolve the conflict between the sealing requirements of the insulation sheet and the beam / column structure in multi-span greenhouses and the vertical installation of dedicated pipes for transporting hot air. This ensures both a sealed connection and effective transport of hot air above the insulation sheet. Furthermore, the hot air above the insulation sheet is transported through the airflow tee column and corresponding connecting pipes to cultivation container components and underground airflow cooling pipe components in different production units, achieving heat storage, temperature increase, and oxygenation effects, thus improving the utilization efficiency of hot air and creating a favorable environment for crop growth. Simultaneously, different types of multi-span greenhouse production units, such as fruit and vegetable planting units, root plant planting units, edible fungi planting units, and three-dimensional biological cultivation units, can meet the planting needs of different crops, adapt to diverse planting scenarios, and improve the planting efficiency and economic benefits of multi-span greenhouses. The overall structure of the airflow tee column and production unit of the multi-span greenhouse of this invention is compact, easy to use, and suitable for widespread application. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a partial top view of the connection relationship between the airflow tee column, beam structure, and insulation sheet of the multi-span greenhouse in Embodiment 1 of the present invention.

[0052] Figure 2 This is a partial plan view of the connection relationship between the airflow tee column, beam structure, and insulation sheet of the multi-span greenhouse in Embodiment 1 of the present invention.

[0053] Figure 3 This is a partial top view of the connection relationship between the airflow tee column, beam structure, and insulation sheet of the multi-span greenhouse in Embodiment 2 of the present invention.

[0054] Figure 4 This is a partial plan view of the connection relationship between the airflow tee column, beam structure, and insulation sheet of the multi-span greenhouse in Embodiment 2 of the present invention.

[0055] Figure 5 This is a partial plan view of the connection relationship between the airflow tee column, beam structure, and insulation sheet of the multi-span greenhouse in Embodiment 3 of the present invention.

[0056] Figure 6 A partial plan view of the connection relationship between the airflow tee column of the multi-span greenhouse of Embodiment 3 of the present invention and the beam structure and insulation sheet after adding a diversion joint;

[0057] Figure 7 This is a top view of the production unit of the multi-span greenhouse according to Embodiment 4 of the present invention;

[0058] Figure 8 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 4 of the present invention;

[0059] Figure 9 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 5 of the present invention;

[0060] Figure 10 This is a top view of the production unit of the multi-span greenhouse according to Embodiment 6 of the present invention;

[0061] Figure 11 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 6 of the present invention;

[0062] Figure 12 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 7 of the present invention;

[0063] Figure 13 This is a head-up view of the production unit of the multi-span greenhouse in Embodiment 8 of the present invention;

[0064] Figure 14 This is a head-up view of the production unit of the multi-span greenhouse in Embodiment 9 of the present invention;

[0065] Figure 15 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 10 of the present invention;

[0066] Figure 16 This is a top view of the production unit of the multi-span greenhouse according to Embodiment 11 of the present invention;

[0067] Figure 17 This is a front-view structural diagram of the production unit of the multi-span greenhouse in Embodiment 11 of the present invention.

[0068] Explanation of reference numerals in the attached drawings: 1-Multi-span greenhouse; 2-Beam structure; 3-Support connecting plate; 4-Insulation sheet; 5-Beam-column sealing assembly; 6-Groove structure; 7-Air column structure; 8-Earth;

[0069] 10 - Production Unit; 20 - Fruit and Vegetable Cultivation and Production Unit; 30 - Root Plant Cultivation and Production Unit; 40 - Edible Fungus Cultivation and Production Unit; 50 - Bio-based Integrated Cultivation and Production Unit;

[0070] 100 - Airflow tee support column; 101 - First direction; 102 - Second direction;

[0071] 110 - Airflow column; 111 - Single pipe; 112 - Pipe wall; 113 - Pipe cavity; 114 - Multiple vertical pipes; 115 - Horizontal component; 116 - Composite; 117 - Air guide tube;

[0072] 120 - Airflow chamber; 121 - Airflow inlet; 122 - Airflow outlet; 123 - Hot airflow introduction device; 124 - Airflow extraction device; 125 - Airflow;

[0073] 130 - Three-way ventilation fan; 131 - Three-way housing; 132 - Airflow gate valve; 133 - Housing cavity; 134 - Housing wall; 135 - Hot air inlet; 136 - Cold air inlet; 137 - Air outlet;

[0074] 140 - Fan; 141 - Impeller; 142 - Fan intake port; 143 - Fan exhaust port;

[0075] 150 - Photovoltaic power station; 151 - Battery; 152 - Electric airflow gate valve;

[0076] 160 - Opening / closing controller;

[0077] 170 - Heating Department;

[0078] 200 - Cultivation container assembly; 201 - Substrate airflow heat dissipation pipe; 202 - Substrate heating interface;

[0079] 210 - Cultivation container wall; 211 - Cultivation container cavity; 212 - Cultivation substrate; 213 - Fruits and vegetables; 214 - Fruits and vegetables seedlings; 215 - Seedling container; 216 - Cultivation container;

[0080] 220 - Matrix parallel heating connection fitting; 221 - Matrix heating main pipe; 222 - Matrix heating branch pipe;

[0081] 230 - Diverter connector; 231 - Main inlet; 232 - Oxygenation diverter port; 233 - Heat storage diverter port; 234 - Diverter gate valve; 235 - Four-way diverter connector;

[0082] 240 - Cultivation rack; 241 - Upper cavity shell; 242 - Lower cavity shell;

[0083] 300 - Water storage container assembly; 301 - Water storage airflow heat dissipation pipe; 302 - Water storage heating interface;

[0084] 310 - Water storage container wall; 311 - Water storage container cavity; 312 - Water body;

[0085] 320 - Water storage and parallel heating connection fittings; 321 - Water storage and heating main pipe; 322 - Water storage and heating branch pipe;

[0086] 400 - Cultivation bed assembly; 401 - Sheet airflow heat dissipation pipe; 402 - Sheet heating interface;

[0087] 410 - Permeable sheet;

[0088] 420 - Sheet heating parallel connection fittings; 421 - Sheet heating main pipe; 422 - Sheet heating branch pipe;

[0089] 500 - Underground airflow heat dissipation pipe assembly; 501 - Underground airflow heat dissipation pipe; 502 - Underground heating interface;

[0090] 510 - Underground parallel heating connection fittings; 511 - Underground heating main pipe; 512 - Underground heating branch pipe;

[0091] 600 - Cultivation hole plate; 601 - Root airflow heat dissipation pipe; 602 - Root heating interface;

[0092] 610 - Root containment sheet assembly; 611 - Root containment sheet; 612 - Root plant; 613 - Yam;

[0093] 620 - Root parallel heating connection fitting; 621 - Root heating main pipe; 622 - Root heating branch pipe;

[0094] 700 - Edible mushroom cultivation rack; 701 - Edible mushroom airflow heat dissipation pipe; 702 - Edible mushroom heating interface;

[0095] 710 - Edible fungi enclosure sheet assembly; 711 - Edible fungi enclosure sheet; 712 - Mushroom sticks and mushrooms;

[0096] 720 - Parallel heating connection fittings for edible fungi; 721 - Main heating pipe for edible fungi; 722 - Branch pipe for edible fungi heating;

[0097] 800 - Biological three-dimensional cultivation rack; 801 - Biological airflow heat dissipation pipe; 802 - Biological heating interface;

[0098] 810 - Bio-containment sheet assembly; 811 - Bio-containment sheet;

[0099] 820 - Biological parallel heating connection fittings; 821 - Biological heating main pipe; 822 - Biological heating branch pipe. Detailed Implementation

[0100] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0101] In the description of this invention, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0102] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0103] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0104] Example 1

[0105] like Figure 1 , Figure 2 As shown, the airflow three-way column 100 of the multi-span greenhouse in this embodiment 1 includes an airflow column 110 and a three-way fan 130. The lower end of the airflow column 110 is connected to the ground 8, and the three-way fan 130 is connected to the lower part of the airflow column 110. At this time, the upper part of the airflow column supports the beam structure 2 of the multi-span greenhouse 1 on both sides in the first direction 101. The upper part of the airflow column 110 cooperates with the beam structure 2 on both sides in the second direction 102, and after cooperation, it seals and connects the heat insulation sheet 4 arranged horizontally in the air of the multi-span greenhouse 1. The first direction 101 and the second direction 102 are set perpendicularly, that is, the beam structure 2 and the heat insulation sheet 4 surround the circumference of the airflow column 110.

[0106] In this embodiment 1, an airflow cavity 120 is vertically arranged in the middle of the airflow column 110. An airflow inlet 121 is arranged at the upper part of the airflow cavity 120 and an airflow outlet 122 is arranged at the lower part. The airflow inlet 121 is connected to the airflow outlet 122 through the airflow cavity 120. The airflow inlet 121 is located above the heat insulation sheet 4, and the airflow outlet 122 is connected to the three-way ventilation fan 130. This allows the hot airflow 125 above the heat insulation sheet 4 to be transported unobstructed and organized towards the ground 8 through the airflow inlet 121, the airflow cavity 120, the airflow outlet 122, and the three-way ventilation fan 130 under the action of the three-way ventilation fan 130, without being blocked by the beam structure 2 and the heat insulation sheet 4.

[0107] The airflow column 110 includes a single tube 111, the specific shape of which is not limited, but preferably a rectangular tube. The specific shape of the cross-section of the beam structure 2 is not limited, but preferably a rectangular tube (including the chord members of the truss beam). The rectangular tube of the beam structure 2 is connected to the upper two sides of the rectangular tube of the single tube 111 in the first direction 101. The width of the rectangular tube of the beam structure 2 corresponds to the side length of the rectangular tube of the single tube 111 in the first direction 101, so that the wall of the rectangular tube of the single tube 111 in the second direction is connected to the beam. The walls of the rectangular tubes in structure 2 are on the same vertical plane. The heat insulation sheet 4 is connected to the other two sides of the upper part of the rectangular tube of the single tube 111 and the two sides of the rectangular tube of the beam structure 3 in the second direction 102. This connection is a sealed connection with very small gaps, which are insufficient to set up a pipeline for conveying airflow. At this time, the airflow cavity 120 is the cavity 113 of the single tube 111, the airflow inlet 121 is the upper opening of the single tube 111, and the airflow outlet 122 is the through hole opened on the lower tube wall 112 of the single tube 111.

[0108] Preferably, a hot airflow introduction device 123 is provided at the upper end of the pipe opening of the single pipe 111 to accurately transport hot air to a specific location above the insulation sheet 4 (because the temperature difference of the air at different heights inside the multi-span greenhouse is large, and the higher the height, the hotter the air). Support connecting plates 3 are provided on both sides of the upper part of the airflow column 110 along the first direction 101 to facilitate a firm connection between the beam structure 2 and the airflow column 110. Alternatively, diagonal braces can be added to the lower part of the support connecting plate 3 and the lower airflow column 110 to enhance the strength of the support connecting plate 3. The insulation sheet 4 is sealed to the beam structure 2 and the airflow column 110 through the beam-column sealing assembly 5. The beam-column sealing assembly 5 is a horizontally opening groove structure 6. This groove structure 6 is sealed to the sides of the airflow column 110 and the beam structure 2 in the second direction 102. It can be seen that it is difficult to find a place to install a vertical pipe for transporting hot air where the airflow column 110, the beam structure 2, and the insulation sheet 4 are located. Unless the integrity of the insulation sheet 4 is compromised, holes are made in the insulation sheet 4 at predetermined locations to allow vertical pipes for conveying heat-conducting air to pass through vertically. In this case, the sealing effect of the sealing connection between the insulation sheet 4 and the beam structure 2 and the airflow column 110 will be greatly reduced.

[0109] Furthermore, an airflow outlet device 124 is provided at the rear of the three-ventilation fan 130 to connect various parallel heating pipes in subsequent production units.

[0110] Specifically, the three-way ventilation fan 130 includes a three-way housing 131, a fan 140, and an airflow gate valve 132. The three-way housing 131 includes a housing wall 134 and a housing cavity 133. The housing wall 134 is connected to the pipe wall 112 of the single pipe 111. The three-way housing 131 and the fan 140 adopt an integrated structure. The housing wall 134 is connected to a hot air inlet 135, a cold air inlet 136, and an air outlet 137. The hot air inlet 135, the cold air inlet 136, and the air outlet 137 are all connected to the housing cavity 133. The hot air inlet 135 is connected to the airflow outlet 122.

[0111] Optionally, the impeller 141 of the fan 140 is disposed within the housing 133. The impeller 141 is located near the air outlet 137 and rotatably connected to the housing wall 134. The cold air inlet 136 is disposed between the impeller 141 and the hot air inlet 135. The airflow gate valve 132 is disposed between the cold air inlet 136 and the hot air inlet 135. When the airflow gate valve 132 is horizontal (dashed line), it is used to block the cold air inlet 136 and open the hot air inlet 135. Alternatively, when the airflow gate valve 132 is vertical (solid line), it is used to open the cold air inlet 136 and block the hot air inlet 135. The fan 140 applies negative pressure to the cold air inlet 136 or the hot air inlet 135 and applies positive pressure to the air outlet 137. Alternatively, the fan 140 is located outside the housing 133, close to the air outlet 137 and connected to the housing wall 134. The fan intake 142 is connected to the air outlet 137. The cold air inlet 136 is located between the air outlet 137 and the hot air inlet 135. The airflow gate valve 132 is located between the cold air inlet 136 and the hot air inlet 135, used to block the cold air inlet 136 and open the hot air inlet 135, or to open the cold air inlet 136 and block the hot air inlet 135. The fan intake 142 provides negative pressure ventilation to the air outlet 137 and the cold air inlet 136 or the hot air inlet 135, and the fan 140 provides positive pressure ventilation to the fan exhaust 143.

[0112] In this embodiment 1, the hot air located above the pre-set heat insulation sheet 4 in the multi-span greenhouse 1 is drawn into the airflow inlet 121 under the negative pressure of the fan 140, and flows through the airflow cavity 120 and the airflow outlet 122 through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143, and enters the pre-set airflow outlet device 124 under positive pressure.

[0113] In this embodiment 1, the airflow three-way column 100 of the multi-span greenhouse 1 achieves the organized transport of hot air 125 by setting an airflow cavity 120, an airflow inlet 121 and an airflow outlet 122. At the same time, the driving action of the three-way fan 130 enhances the flow effect of the airflow 125 and improves the transport efficiency of the airflow 125.

[0114] Example 2

[0115] like Figure 3 , Figure 4 As shown, the difference between the airflow tee column 100 of the multi-span greenhouse 1 in this embodiment 2 and that in embodiment 1 is that the airflow column 110 includes multiple vertical pipes 114, air guide pipes 117 and horizontal members 115. The multiple vertical pipes 114 are spaced apart, and the horizontal members 115 fix the multiple vertical pipes 114 together to form a composite 116. At this time, the multiple horizontal members 115 are also spaced apart. The air guide pipes 117 are located in the middle of the composite 116 along the second direction 102. The airflow cavity 120 is the cavity of the air guide pipe 117, the airflow inlet 121 is the upper opening of the air guide pipe 117, and the airflow outlet 122 is the lower opening of the air guide pipe 117.

[0116] In this embodiment 2, the shell wall 112 of the three-way housing 131 is connected to the composite 116.

[0117] Among them, the heat insulation sheet 4 unfolds in the second direction 102, and the upper part of the airflow column 110 is provided with beam-column sealing components 5 on both sides of the second direction 102. The beam-column sealing components 5 are groove structures 6, and air column structures 7 are provided in the groove structure 6 to further seal the gaps that exist when the heat insulation sheet 4 is sealed and connected with the airflow column 110 and the beam structure 2.

[0118] Example 3

[0119] like Figure 5 , Figure 6 As shown, the difference between the airflow tee column 100 of the multi-span greenhouse 1 in this embodiment 3 and that in embodiment 1 is that it also includes a photovoltaic power station 150, a battery 151 and an on / off controller 160. The photovoltaic panels of the photovoltaic power station 150 are connected to the pipes of the airflow column 110 to receive sunlight during the day. The photovoltaic power station 150 is electrically connected to the battery 151. The airflow gate valve 132 is an electric airflow gate valve 152. The battery 151 is electrically connected to the fan 140 and the electric airflow gate valve 152. The on / off controller 160 is used to control at least the on / off of the fan 140, the switching of the electric airflow gate valve 152, and the on / off of the hot air inlet 135 and the cold air inlet 136.

[0120] Optional, such as Figure 5 As shown, the fan 140 and the three-way housing 131 are separate structures; or, as... Figure 6As shown, the fan 140 and the three-way housing 131 are an integral structure.

[0121] In this embodiment 3, a diversion connector 230 is added at the air outlet 137. The diversion connector 230 includes a main inlet 231, an oxygenation diversion port 232, and a heat storage diversion port 233. The main inlet 231 is connected to the air outlet 137 of the heating unit 170 or the exhaust port 143 of the fan of the heating unit 170. The main inlet 231 is connected to the oxygenation diversion port 232 and the heat storage diversion port 233 respectively. A diversion gate valve 234 is provided between the oxygenation diversion port 232 and the heat storage diversion port 233. The diversion gate valve 234 is horizontally positioned to the left to block the heat storage diversion port 233. The diversion gate valve 234 is vertically positioned to block the oxygenation diversion port 232. The diversion gate valve 234 is horizontally positioned to the right to open the oxygenation diversion port 232 and the heat storage diversion port 233.

[0122] Example 4

[0123] like Figure 7 , Figure 8 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 4 includes the airflow tee column 100 of the multi-span greenhouse 1, the cultivation container assembly 200 and the substrate parallel heating connection pipe 220. The rectangular ground formed by four adjacent airflow tee columns 100 is set as a fruit and vegetable planting production unit 20, and one of the airflow tee columns 100 is set as the heating part 170 of the fruit and vegetable planting production unit 20.

[0124] Specifically, the cultivation container components 200 are arranged in rows along the first direction, and multiple rows of cultivation container components 200 are arranged parallel to each other along the second direction 102 on the ground or suspended above the ground of the fruit and vegetable planting production unit 20. The cultivation container components 200 include cultivation container walls 210, cultivation container cavities 211, substrate airflow heat dissipation pipes 201, and cultivation substrates 212. The cultivation substrates 212 are filled in the cultivation container cavities 211 and are used to cultivate fruit and vegetable plants 213 (i.e., vegetables or fruit trees). The substrate airflow heat dissipation pipes 201 are connected to the cultivation container walls 210 or pass through the cultivation container walls 210 and are connected to the cultivation substrates 212. The substrate airflow heat dissipation pipes 201 are provided with holes for water and air permeability.

[0125] Within a fruit and vegetable planting and production unit 20, each substrate airflow heat dissipation pipe 201 is provided with a substrate heating interface 202 at one end near the heating section 170. The substrate heating main pipe 221 of the substrate parallel heating connecting pipe fitting 220 is connected to the air outlet 137 of the heating section 170 or the fan exhaust port 143 of the heating section 170. The substrate heating branch pipe 222 of the substrate parallel heating connecting pipe fitting 220 is connected to each substrate heating interface 202.

[0126] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the fruit and vegetable planting production unit 20 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure then enters the substrate heating main pipe 221 of the substrate parallel heating connection pipe 220, and then the positive pressure enters the substrate heating branch pipe 222, and then enters each substrate airflow heat dissipation pipe 201, and is discharged from the holes of the substrate airflow heat dissipation pipe 201 to improve the cultivation substrate. The temperature of 212 is increased, and the oxygen content of the cultivation substrate 212 is increased; or, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the cold air inlet 136 and enters the shell cavity 133 under the negative pressure of the fan 140, and then is discharged from the air outlet 137 or the fan exhaust port 143. The positive pressure enters the substrate heating main pipe 221 of the substrate parallel heating connection pipe 220, and then enters the substrate heating branch pipe 222, and then enters each substrate airflow heat dissipation pipe 201, and is discharged from the holes of the substrate airflow heat dissipation pipe 201, so as to increase the oxygen content of the cultivation substrate 212.

[0127] In this embodiment 4, as Figure 7 As shown, nine fruit and vegetable planting production units 20 are set up. Specifically, the planting row direction is set as the first direction 101, which is north-south, to facilitate uniform sunlight exposure for the fruits and vegetables. At this time, the three ventilation fans 130 are set on one side of the airflow column 110 in the first direction 101, that is, below the beam structure 2, so as not to affect the north-south operation of the fruit and vegetable planting equipment. The substrate parallel heating connection pipe 220 is located below the beam structure 2 and underground, and extends from underground along the second direction 102 to the location of each row of fruits and vegetables, which can prevent the substrate parallel heating connection pipe 220 from being crushed during the operation of the fruit and vegetable planting equipment.

[0128] It should be noted that when setting up a photovoltaic power station 150 on the airflow column 100, you can choose to install a large photovoltaic panel or multiple small photovoltaic panels; there are no restrictions.

[0129] Example 5

[0130] like Figure 9As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 5 includes the airflow tee column 100, the diversion connector 230, the cultivation rack 240, the cultivation container assembly 200, the substrate parallel heating connection pipe 220, the water storage container assembly 300, and the water storage parallel heating connection pipe 320. The rectangular ground formed by four adjacent airflow tee columns 100 is set as a fruit and vegetable planting production unit 20, and one of the airflow tee columns 100 is set as the heating part of the fruit and vegetable planting production unit 20.

[0131] Specifically, the diversion connector 230 includes a main inlet 231, an oxygenation diversion port 232, and a heat storage diversion port 233. The main inlet 231 is connected to the air outlet 137 of the heating unit 170 or the fan exhaust port 143 of the heating unit 170. The main inlet 231 is connected to the oxygenation diversion port 232 and the heat storage diversion port 233 respectively.

[0132] Furthermore, the cultivation rack 240 includes an upper cavity shell 241 and a lower cavity shell 242. The upper cavity shell 241 serves as a planting area, and the lower cavity shell 242 serves as a heat storage area. The cultivation racks 240 are arranged in rows along the first direction, and multiple rows of cultivation racks 240 are arranged parallel to each other at intervals along the second direction 102 on the ground of the fruit and vegetable planting production unit 20.

[0133] At this time, the cultivation container assembly 200 is set in the upper cavity shell 241 of the cultivation rack 240. The cultivation container assembly 200 includes a cultivation container wall 210, a cultivation container cavity 211, a substrate airflow heat dissipation pipe 201, and a cultivation substrate 212. The cultivation substrate 212 is filled in the cultivation container cavity 211 and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe 201 is connected to the cultivation container wall 210 or passes through the cultivation container wall 210 and is connected to the cultivation substrate 212. The substrate airflow heat dissipation pipe 201 is provided with holes for water and air permeability.

[0134] Within a fruit and vegetable planting and production unit 20, each substrate airflow heat dissipation pipe 201 has a substrate heating interface 202 at one end near the heating section 170. The substrate heating main pipe 221 of the substrate parallel heating connection pipe 220 is connected to the oxygenation branch port 232, and the substrate heating branch pipe 222 of the substrate parallel heating connection pipe 220 is connected to each substrate heating interface 202.

[0135] In this embodiment 5, the water storage container assembly 300 is disposed in the lower cavity shell 242 of the cultivation rack 240. The water storage container assembly 300 includes a water storage container wall 310, a water storage container cavity 311, a water storage airflow heat dissipation pipe 301, and a water body 312. The water body 312 is contained in the water storage container cavity 311 and is used to store heat energy. The water storage airflow heat dissipation pipe 301 is connected to the water storage container wall 310.

[0136] Within a fruit and vegetable planting and production unit 20, each water storage airflow heat dissipation pipe 301 is equipped with a water storage heating interface 302 at one end near the heating section 170. The main water storage heating pipe 321 of the water storage parallel heating connection pipe fitting 320 is connected to the heat storage branch port 233, and the water storage heating branch pipe 322 of the water storage parallel heating connection pipe fitting 320 is connected to each water storage heating interface 302.

[0137] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the fruit and vegetable planting production unit 20 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the substrate heating main pipe 221 of the substrate parallel heating connection pipe fitting 220 through the diverter 230, and then the positive pressure enters the substrate heating branch. Pipe 222, then enters each substrate airflow heat dissipation pipe 201, and exits from the holes of the substrate airflow heat dissipation pipe 201 to increase the temperature of the cultivation substrate 212 and increase the oxygen content of the cultivation substrate 212, and / or, positive pressure enters the water storage heating main pipe 321 of the water storage parallel heating connection pipe fitting 320 through the diverter 230, then positive pressure enters the water storage heating branch pipe 322, and then positive pressure enters each water storage airflow heat dissipation pipe 301, and exits from the other end of the water storage airflow heat dissipation pipe 301. The heat energy in the hot air flow 125 passes through the water storage airflow heat dissipation pipe 322. The air is conducted through the pipe wall of 01 into the water body 312 to increase the temperature of the water body 312; or, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the cold air inlet 136 under the negative pressure of the fan 140, and then enters the shell cavity 133, and is discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the matrix heating main pipe 221 of the matrix parallel heating connection pipe fitting 220 through the diverter 230, and then enters the matrix heating branch pipe 222. Then it enters each substrate airflow heat dissipation pipe 201 and is discharged from the holes of the substrate airflow heat dissipation pipe 201 to increase the oxygen content of the cultivation substrate 212, and / or, positive pressure enters the water storage heating main pipe 321 of the water storage parallel heating connection pipe fitting 320 through the diverter 230, and then enters the water storage heating branch pipe 322, and then positive pressure enters each water storage airflow heat dissipation pipe 301. The heat energy in the water body 312 heats the air in the water storage airflow heat dissipation pipe 301 and is discharged from the other end of the water storage airflow heat dissipation pipe 301 to slow down the temperature drop in the fruit and vegetable planting unit 20.

[0138] Example 6

[0139] like Figure 10 , Figure 11As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 6 includes the airflow tee column 100 of the multi-span greenhouse 1, the cultivation bed assembly 400 and the sheet parallel heating connection pipe 420. The rectangular ground formed by four adjacent airflow tee columns 100 is set as a fruit and vegetable planting production unit 20, and one of the airflow tee columns 100 is set as the heating part 170 of the fruit and vegetable planting production unit 20.

[0140] The cultivation bed assembly 400 is rectangular and is set on the ground of the fruit and vegetable planting production unit 20. The cultivation bed assembly 400 includes a permeable sheet 410 and a sheet airflow heat dissipation pipe 401. Multiple sheet airflow heat dissipation pipes 401 are connected to the permeable sheet 410 in parallel and spaced apart. The sheet airflow heat dissipation pipes 401 are provided with holes for water permeability and air permeability.

[0141] Within a fruit and vegetable planting and production unit 20, each sheet airflow heat dissipation pipe 401 is provided with a sheet heating interface 402 at one end near the heating section 170. The sheet heating main pipe 421 of the sheet parallel heating connecting pipe fitting 420 is connected to the air outlet 137 of the heating section 170 or the fan exhaust port 143 of the heating section. The sheet heating branch pipe 422 of the sheet parallel heating connecting pipe fitting 420 is connected to each sheet heating interface 402.

[0142] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the fruit and vegetable planting production unit 20 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. Positive pressure then enters the sheet heating main pipe 421 of the sheet parallel heating connection fitting 420, then the sheet heating branch pipe 422, and finally the various sheet airflow heat dissipation pipes 402, and is discharged from the holes of the sheet airflow heat dissipation pipes 402, thereby increasing the temperature of the cultivation bed and increasing the oxygen content near the cultivation bed surface; or The hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the cold air inlet 136 under the negative pressure of the fan 140, and then enters the shell cavity 133. It is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the sheet heating main pipe 421 of the sheet parallel heating connection pipe fitting 420, and then enters the sheet heating branch pipe 422. Finally, the positive pressure enters each sheet airflow heat dissipation pipe 401. The air in the sheet airflow heat dissipation pipe 401 is heated by the geothermal energy of the cultivation bed and discharged from the holes of the sheet airflow heat dissipation pipe 401 to increase the air temperature on the cultivation bed and increase the oxygen content of the roots of fruit and vegetable plants near the cultivation bed.

[0143] Figure 11The diagram shows a production scenario where a cultivation bed assembly 400 is set up on the ground of the fruit and vegetable planting production unit 20, and fruit and vegetable seedlings 214 are raised on the cultivation bed assembly 400. Seedling containers 215 are placed on the cultivation bed assembly 400. Hot air flow 125 from the fruit and vegetable planting production unit 20 is introduced into the sheet airflow heat dissipation pipe 401, which can increase the temperature of the seedling substrate in the seedling container 215, thereby promoting the root growth and development of the fruit and vegetable seedlings 214 and helping to cultivate strong seedlings.

[0144] Example 7

[0145] like Figure 12 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 7 includes the airflow tee column 100 of the multi-span greenhouse 1, the underground airflow heat dissipation pipe assembly 500 and the underground parallel heating connection pipe 510. The rectangular ground formed by four adjacent airflow tee columns 100 is set as a fruit and vegetable planting production unit 20, and one of the airflow tee columns 100 is set as the heating part 170 of the fruit and vegetable planting production unit 20.

[0146] The underground airflow heat dissipation pipe assembly 500 is rectangular and is installed in the ground below the ground of the fruit and vegetable planting and production unit 20. The underground airflow heat dissipation pipe assembly 500 includes multiple underground airflow heat dissipation pipes 501 arranged in parallel at intervals. The underground airflow heat dissipation pipes 501 are provided with holes for water and air to pass through.

[0147] Within a fruit and vegetable planting and production unit 20, each underground airflow heat dissipation pipe 501 has an underground heating interface 502 at one end near the heating section 170. The underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510 is connected to the air outlet 137 of the heating section 170 or the fan exhaust port 143 of the heating section 170. The underground heating branch pipe 512 of the underground parallel heating connection pipe fitting 510 is connected to each underground heating interface 502.

[0148] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the fruit and vegetable planting production unit 20 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. It enters the underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510 under positive pressure, and then enters the underground heating branch pipe 512. After that, it enters each underground airflow heat dissipation pipe 501 under positive pressure and is discharged from the holes of the underground airflow heat dissipation pipe 501, and / or from the other end of the underground airflow heat dissipation pipe 501, so as to increase the soil temperature of the earth 8 and increase the oxygen content of the soil in the earth 8; or The hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three ventilation fans 130 is drawn into the cold air inlet 136 under the negative pressure of the fan 140, and then enters the shell cavity 133. It is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510, and then enters the underground heating branch pipe 512. After that, the positive pressure enters each underground airflow heat dissipation pipe 501. After being heated by the soil heat energy in the earth 8, it is discharged from the holes of the underground airflow heat dissipation pipe 501 (and finally escapes from the ground of the earth 8), and / or is discharged from the other end of the underground airflow heat dissipation pipe 501, so as to increase the air temperature above the fruit and vegetable planting unit 20 and increase the soil oxygen content in the earth 8.

[0149] Figure 12 The illustration shows a cultivation container 216 placed directly on the ground 8 for fruit and vegetable cultivation. The ground 8, heated by the underground airflow heat dissipation pipe 501, is conducive to the root development of the fruits and vegetables in the cultivation container 216.

[0150] Example 8

[0151] like Figure 13 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 8 includes the airflow tee column 100, the diversion connector 230, the cultivation container assembly 200, the substrate parallel heating connection pipe 220, the underground airflow heat dissipation pipe assembly 500, and the underground parallel heating connection pipe 510. The rectangular ground area enclosed by four adjacent airflow tee columns 100 is set as a fruit and vegetable planting production unit 20, and one of the airflow tee columns 100 is set as the heating part 170 of this fruit and vegetable planting production unit.

[0152] The diversion connector 230 includes a main flow inlet 231, an oxygenation diversion port 232, and a heat storage diversion port 233. The main flow inlet 231 is connected to the air outlet port 137 of the heating unit 170 or the fan exhaust port 143 of the heating unit 170. The main flow inlet 231 is connected to the oxygenation diversion port 232 and the heat storage diversion port 233 respectively.

[0153] Furthermore, the cultivation container assemblies 200 are arranged in rows along the first direction 101, and multiple rows of cultivation container assemblies 200 are arranged parallel to each other along the second direction 102 on the ground or suspended above the ground of the fruit and vegetable planting production unit 20. The cultivation container assembly 200 includes a cultivation container wall 210, a cultivation container cavity 211, a substrate airflow heat dissipation pipe 201, and a cultivation substrate 212. The cultivation substrate 212 is filled in the cultivation container cavity 211 and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe 201 is connected to the cultivation container wall 210 or passes through the cultivation container wall 210 and is connected to the cultivation substrate 212. The substrate airflow heat dissipation pipe 201 is provided with holes for water and air permeability.

[0154] Within a fruit and vegetable planting and production unit 20, each substrate airflow heat dissipation pipe 201 is provided with a substrate heating interface 202 at one end near the heating section 170. The substrate heating main pipe 221 of the substrate parallel heating connection pipe 220 is connected to the oxygenation branch port 232, and the substrate heating branch pipe 222 of the substrate parallel heating connection pipe 220 is connected to the substrate heating interface 202.

[0155] In this embodiment 8, the underground airflow heat dissipation pipe assembly 500 is rectangular and is set in the ground below the ground of the fruit and vegetable planting and production unit 20. The underground airflow heat dissipation pipe assembly 500 includes a plurality of parallel and spaced underground airflow heat dissipation pipes 501, and the underground airflow heat dissipation pipes 501 are provided with holes for water and air permeability.

[0156] Within a fruit and vegetable planting and production unit 20, underground heating interfaces 502 are provided at the end of each underground airflow heat dissipation pipe 501 near the heating section 170. The underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510 is connected to the heat storage branch port 233, and the underground heating branch pipe 512 of the underground parallel heating connection pipe fitting 510 is connected to each underground heating interface 502.

[0157] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the fruit and vegetable planting production unit 20 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the substrate heating main pipe 221 of the substrate parallel heating connection pipe 220 through the diverter 230, and then enters the substrate heating branch pipe 22. 2. The airflow then enters each substrate airflow heat dissipation pipe 201 and exits through the holes of the substrate airflow heat dissipation pipe 201 to increase the temperature of the cultivation substrate 212 and increase the oxygen content of the cultivation substrate 212. Alternatively, positive pressure enters the underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510 through the diverter joint 230, then enters the underground heating branch pipe 512, and then positive pressure enters each underground airflow heat dissipation pipe 501, exiting from the other end of the underground airflow heat dissipation pipe 501. The heat energy in the hot airflow 125 passes through the pipe wall of the underground airflow heat dissipation pipe 501. The air is conducted into the soil in the ground 8 to increase the soil temperature; or, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the cold air inlet 136 under the negative pressure of the fan 140, then enters the shell cavity 133, and is discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the matrix heating main pipe 221 of the matrix parallel heating connection pipe fitting 220 through the diverter 230, and then enters the matrix heating branch pipe 222, and then enters the matrix heating branch pipe 222. The air enters each substrate airflow heat dissipation pipe 201 and exits from the holes of the substrate airflow heat dissipation pipe 201 to increase the oxygen content of the cultivation substrate 212, and / or, positive pressure enters the underground heating main pipe 511 of the underground parallel heating connection pipe fitting 510 through the diverter 230, and then enters the underground heating branch pipe 512, and then enters each underground airflow heat dissipation pipe 501 under positive pressure. The heat energy in the soil of the earth 8 heats the air in the underground airflow heat dissipation pipe 501 and then exits from the other end of the underground airflow heat dissipation pipe 501 to slow down the decrease in temperature in the fruit and vegetable planting unit 20.

[0158] Example 9

[0159] like Figure 14 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 9 includes the airflow tee column 100, cultivation rack 240, cultivation perforated plate 600, root containment sheet assembly 610 and root parallel heating connection pipe 620 of the multi-span greenhouse 1. The rectangular ground formed by four adjacent airflow tee columns 100 is set as a root plant planting production unit 30, and one of the airflow tee columns 100 is set as the heating part 170 of the root plant planting production unit 30.

[0160] The cultivation rack 240 includes an upper cavity shell 241 and a lower cavity shell 242. The upper cavity shell 241 serves as a development site for the above-ground organs of the root plant 612, and the lower cavity shell serves as a development site for the underground organs of the root plant 612. The cultivation racks 240 are arranged in rows along the first direction 101, and multiple rows of cultivation racks 240 are arranged parallel to each other along the second direction 102 on the ground of the root plant planting and production unit 30.

[0161] Furthermore, the cultivation perforated plate 600 is disposed in the upper cavity shell 241 of the cultivation rack 240 to fix the root plants 612, and the root containment sheet assembly 610 is disposed in the lower cavity shell 242 of the cultivation rack 240 to create a microclimate for root development. The root containment sheet assembly 610 includes a root containment sheet 611 and a root airflow heat dissipation pipe 601. The root airflow heat dissipation pipe 601 is connected to the root containment sheet 611, and the root airflow heat dissipation pipe 601 is provided with holes for water and air permeability.

[0162] Within a root plant cultivation and production unit 30, each root airflow heat dissipation pipe 601 has a root heating interface 602 at one end near the heating section 170. The root heating main pipe 621 of the root parallel heating connection pipe 620 is connected to the air outlet 137 of the heating section 170 or the fan exhaust port 143 of the heating section 170. The root heating branch pipe 622 of the root parallel heating connection pipe 620 is connected to each root heating interface 602.

[0163] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the root plant planting production unit 30 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure then enters the root heating main pipe 621 of the root parallel heating connection pipe fitting 620, and then enters the root heating branch pipe 622. Finally, the positive pressure enters each root airflow heat dissipation pipe 601 and is discharged from the holes of the root airflow heat dissipation pipe 601 to improve the root heating effect. The temperature of the plant root environment is increased, and the oxygen content in the root environment is increased; or, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the shell cavity 133 from the cold air inlet 136 under the negative pressure of the fan 140, and then discharged from the air outlet 137 or the fan exhaust port 143. The positive pressure enters the root heating main pipe 621 of the root parallel heating connection pipe 620, and then enters the root heating branch pipe 622. After that, the positive pressure enters each root airflow heat dissipation pipe 601 and is discharged from the holes of the root airflow heat dissipation pipe 601 to increase the oxygen content in the root environment.

[0164] Figure 14The image shown is of yam 613, a root plant in the 612 variety. Yam 613 is a perennial root plant; in suitable environments, its roots are not affected by soil resistance and can grow continuously downwards. It can also be used... Figure 14 The method shown demonstrates the cultivation of root plants such as licorice, ginseng, sweet potato, potato, radish, carrot, taro, and lotus root. Figure 14 The illustration shows a production scenario of aeroponic (hydroponics) cultivation of root plants. Various nutrients that root plants would normally absorb from the soil are directly supplied to the root organs of the root plants in the form of atomized aqueous solution through the atomization device of the aeroponic equipment. For clarity, the aeroponic equipment is not shown.

[0165] Example 10

[0166] like Figure 15 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 10 includes the airflow tee column 100 of the multi-span greenhouse 1, the edible fungus planting rack 700, the edible fungus enclosure sheet assembly 710 and the edible fungus parallel heating connection pipe 720. The rectangular ground formed by four adjacent airflow tee columns 100 is set as an edible fungus planting production unit 40, and one of the airflow tee columns 100 is set as the heating part 170 of the edible fungus planting production unit 40.

[0167] Among them, the edible mushroom cultivation racks 700 are arranged in rows along the first direction, and multiple rows of edible mushroom cultivation racks 700 are arranged parallel to each other at intervals along the second direction 102 on the ground of the edible mushroom cultivation and production unit 40.

[0168] At this time, the edible fungus enclosure sheet assembly 710 is arranged around the edible fungus cultivation and production unit 40 to create a microclimate for the development of edible fungi. The edible fungus enclosure sheet assembly 710 includes an edible fungus enclosure sheet 711 and an edible fungus airflow heat dissipation pipe 701. The edible fungus airflow heat dissipation pipe 701 is connected to the edible fungus enclosure sheet 711 and has holes for water and air permeability.

[0169] Within an edible mushroom cultivation and production unit 40, each edible mushroom airflow heat dissipation pipe 701 is provided with an edible mushroom heating interface 702 at one end near the heating section 170. The main edible mushroom heating pipe 721 of the edible mushroom parallel heating connection pipe 720 is connected to the air outlet 137 of the heating section 170 or the fan exhaust port 143 of the heating section 170. The branch edible mushroom heating pipe 722 of the edible mushroom parallel heating connection pipe 720 is connected to each edible mushroom heating interface 702.

[0170] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the edible mushroom cultivation production unit 40 is drawn into the air inlet 121 under the negative pressure of the fan 140, flows through the air outlet 122 through the air chamber 120, passes through the hot air inlet 135 into the shell cavity 133, and is then discharged from the outlet 137 or the fan exhaust port 143. Positive pressure then enters the edible mushroom heating main pipe 721 of the parallel heating connection fitting 720, then into the edible mushroom heating branch pipe 722, and finally into each edible mushroom airflow heat dissipation pipe 701, and is discharged from the holes of the edible mushroom airflow heat dissipation pipe 701 to improve the efficiency of the edible mushroom cultivation. The growing environment temperature is adjusted to increase the oxygen content in the edible fungus growing environment; alternatively, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way ventilation fan 130 is drawn into the shell cavity 133 from the cold air inlet 136 under the negative pressure of the fan 140, and then discharged from the outlet 137 or the fan exhaust port 143. The positive pressure enters the edible fungus heating main pipe 721 of the parallel heating connection pipe 720, and then enters the edible fungus heating branch pipe 722. Finally, the positive pressure enters each edible fungus airflow heat dissipation pipe 701 and is discharged from the holes of the edible fungus airflow heat dissipation pipe 701, thereby increasing the oxygen content in the edible fungus growing environment.

[0171] Figure 15 The edible mushroom cultivation rack 700 shown is a cable structure. The mushrooms grow on the mushroom sticks 712, which are suspended above the ground 8 by the cable structure.

[0172] Example 11

[0173] like Figure 16 , Figure 17 As shown, the production unit 10 of the multi-span greenhouse 1 in this embodiment 11 includes the airflow tee column 100, the biological three-dimensional cultivation rack 800, the biological containment sheet assembly 810, and the biological parallel heating connection pipe 820 of the multi-span greenhouse 1. At least one biological three-dimensional cultivation production unit 50 is set in the rectangular ground enclosed by four adjacent airflow tee columns 100. Figure 16 In the rectangular ground formed by four adjacent airflow tee columns 100, four biological three-dimensional cultivation production units 50 are set up. Each biological three-dimensional cultivation production unit 50 includes three rows of biological three-dimensional cultivation racks 800, and the airflow tee columns 100 near each biological three-dimensional cultivation production unit 50 serve as the heating section 170 of the biological three-dimensional cultivation production unit 50.

[0174] At this time, a multi-layer biological three-dimensional culture rack 800 is set on the ground of the biological three-dimensional culture production unit 50.

[0175] Furthermore, the biological containment sheet assembly 810 is arranged around the periphery of the three rows of biological three-dimensional culture racks 800 to create a microclimate for biological development. The biological containment sheet assembly 810 includes a biological containment sheet 811 and a biological airflow heat dissipation pipe 801. The biological airflow heat dissipation pipe 801 is connected to the biological containment sheet 811 and has holes for water and air permeability.

[0176] Within a three-dimensional biological cultivation production unit 50, each biological airflow heat dissipation pipe 801 is equipped with a biological heating interface 802 at one end near the heating section 170. The main biological heating pipe 821 of the biological parallel heating connecting pipe 820 is connected to the air outlet 137 or the fan exhaust port 143 of the heating section 170, and the biological heating branch pipe 822 of the biological parallel heating connecting pipe 820 is connected to the biological heating interface 802. Figure 16 In the rectangular ground formed by four adjacent airflow tee columns 100, four biological three-dimensional cultivation production units 50 are set up. The heating section 170 of each of the four biological three-dimensional cultivation production units 50 is the nearest airflow tee column 100. In this way, the airflow tee column 100 located in the middle of the multi-span greenhouse 1 becomes the heating section 170 of the four biological three-dimensional cultivation production units 50 adjacent to it. In order to provide heating for the four biological three-dimensional cultivation production units 50, a four-way diversion connector 235 is set on the air outlet 137 or the fan exhaust port 143 of the heating section 170.

[0177] At this time, the hot air inlet 135 is opened and the cold air inlet 136 is blocked. The hot air flow 125 above the biological three-dimensional cultivation production unit 50 is drawn into the airflow inlet 121 under the negative pressure of the fan 140, flows through the airflow chamber 120 from the airflow outlet 122 through the hot air inlet 135 into the shell cavity 133, and then is discharged from the air outlet 137 or the fan exhaust port 143. It then enters the biological heating main pipe 821 of the biological parallel heating connection pipe fitting 820 through the corresponding branch port in the four-way split connector 235, and then enters the biological heating branch pipe 822. Finally, it enters each biological airflow heat dissipation pipe 801 under positive pressure and is discharged from the holes of the biological airflow heat dissipation pipe 801 to improve the efficiency of the biological airflow heat dissipation production unit 50. The temperature of the biological growth environment is increased, and the oxygen content in the biological growth environment is increased; or, the hot air inlet 135 is blocked and the cold air inlet 136 is opened. The airflow 125 near the three-way fan 130 is drawn into the shell cavity 133 from the cold air inlet 136 under the negative pressure of the fan 140, and then discharged from the outlet 137 or the fan exhaust port 143. It enters the biological heating main pipe 821 of the biological parallel heating connection pipe fitting 820 under positive pressure through one of the corresponding diversion interfaces in the four-way diversion connector 235, and then enters the biological heating branch pipe 822. After that, it enters each biological airflow heat dissipation pipe 801 under positive pressure and is discharged from the holes of the biological airflow heat dissipation pipe 801, so as to increase the oxygen content in the biological growth environment.

[0178] Figure 17 The biological three-dimensional cultivation rack 800 shown can cultivate barley grass, wheat grass, lettuce, insects or earthworms, some grass-decaying fungi among edible fungi, and aquatic organisms.

[0179] The airflow tee column 100 of the multi-span greenhouse 1 and the production unit 10 of the multi-span greenhouse 1 of the present invention, through the rationally designed airflow tee column 100, solve the conflict between the sealing connection requirements of the insulation sheet 4 and the beam structure 2 and column structure in the multi-span greenhouse 1 and the vertical setting of dedicated pipes to transport hot air. This ensures both a sealed connection and effective transport of hot air above the insulation sheet 4. Furthermore, the hot air above the insulation sheet 4 is transported through the airflow tee column 100 and corresponding connecting pipes to the cultivation container assembly 200, underground airflow heat dissipation pipe assembly 500, etc. of different production units 10, achieving effects such as heat storage, temperature increase, and oxygenation, improving the utilization efficiency of hot air and creating a good environment for crop growth. At the same time, different types of multi-span greenhouse production units 10, such as: fruit and vegetable planting production unit 20, root plant planting production unit 30, edible fungus planting production unit 40, and biological three-dimensional cultivation production unit 50, can meet the planting needs of different crops, adapt to diverse planting scenarios, and improve the planting efficiency and economic benefits of the multi-span greenhouse 1.

[0180] The airflow tee column 100 of the multi-span greenhouse 1 and the production unit 10 of the multi-span greenhouse 1 of the present invention have a compact overall structure design, are easy to use, have extremely high market potential and promotion value, and are suitable for widespread application in the industry.

[0181] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An airflow tee column for a multi-span greenhouse, characterized in that, The system includes an airflow column and three ventilation fans. The lower end of the airflow column is connected to the ground, and the three ventilation fans are connected to the lower part of the airflow column. The upper part of the airflow column supports the beam structure connecting the multi-span greenhouse on both sides in a first direction, and the upper part of the airflow column cooperates with the beam structure on both sides in a second direction, and after cooperation, seals and connects the horizontally arranged heat insulation sheet in the air of the multi-span greenhouse. The first direction and the second direction are perpendicular to each other. The beam structure and the heat insulation sheet surround the circumference of the airflow column. An airflow cavity is vertically arranged in the middle of the airflow column. An airflow inlet is provided at the upper part of the airflow cavity, and an airflow outlet is provided at the lower part. The airflow inlet is connected to the airflow outlet through the airflow cavity. The airflow inlet is located above the heat insulation sheet, and the airflow outlet is connected to the three ventilation fans so that the hot air above the heat insulation sheet is transported to the ground in sequence through the airflow inlet, the airflow cavity, the airflow outlet, and the three ventilation fans under the action of the three ventilation fans. The airflow column comprises a single pipe, the airflow cavity is the lumen of the single pipe, the airflow inlet is the upper opening of the single pipe, and the airflow outlet is a through hole opened in the lower wall of the single pipe; or, The airflow column includes vertical pipes, air guide pipes, and horizontal components. Multiple vertical pipes are spaced apart. The horizontal components fix the multiple vertical pipes together to form a composite. The air guide pipes are located in the middle of the composite along the second direction and / or the first direction. The airflow cavity is the cavity of the air guide pipe. The airflow inlet is the upper opening of the air guide pipe, and the airflow outlet is the lower opening of the air guide pipe. The three-way ventilation fan includes a three-way housing, a fan, and an airflow gate valve. The three-way housing includes a housing wall and a housing cavity. The housing wall is connected to the wall of the single pipe, or the housing wall is connected to the composite. The shell wall is provided with a hot air inlet, a cold air inlet and an air outlet, and the hot air inlet is connected to the air outlet. The impeller of the fan is disposed inside the housing cavity. The impeller is rotatably connected to the housing wall near the air outlet. The cold air inlet is disposed between the impeller and the hot air inlet. The airflow gate valve is disposed between the cold air inlet and the hot air inlet, and is used to block the cold air inlet and open the hot air inlet, or to open the cold air inlet and block the hot air inlet. The fan applies negative pressure to the cold air inlet or the hot air inlet and applies positive pressure to the air outlet. Alternatively, the fan is disposed outside the housing cavity, the fan is close to the air outlet and connected to the housing wall, the fan intake port is connected to the air outlet, the cold air inlet is disposed between the air outlet and the hot air inlet, the airflow gate valve is disposed between the cold air inlet and the hot air inlet, used to block the cold air inlet and open the hot air inlet, or used to open the cold air inlet and block the hot air inlet, the fan intake port applies negative pressure to the air outlet and the cold air inlet or the hot air inlet, and the fan applies positive pressure to the fan exhaust port; When the airflow gate valve blocks the cold air inlet and opens the hot air inlet, the hot air located above the pre-set insulation sheet in the multi-span greenhouse is drawn into the airflow inlet under the negative pressure of the fan, flows through the airflow cavity and the airflow outlet, enters the shell cavity through the hot air inlet, and is then discharged from the outlet or the fan exhaust port, entering the pre-set airflow outlet device under positive pressure; when the airflow gate valve blocks the hot air inlet and opens the cold air inlet, the cold air located below the pre-set insulation sheet in the multi-span greenhouse is drawn into the cold air inlet under the negative pressure of the fan, enters the shell cavity, and is then discharged from the outlet or the fan exhaust port, entering the pre-set airflow outlet device under positive pressure.

2. The airflow tee column of a multi-span greenhouse according to claim 1, characterized in that, It also includes a photovoltaic power station, a battery, and an on / off controller. The photovoltaic panels of the photovoltaic power station are connected to the pipe of the airflow column. The photovoltaic power station is electrically connected to the battery. The airflow gate valve is an electric airflow gate valve. The battery is electrically connected to the fan and the electric airflow gate valve. The on / off controller is used to control at least the on / off of the fan, the switching of the electric airflow gate valve, and the on / off of the hot air inlet and the cold air inlet.

3. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes the airflow tee column, cultivation container assembly, and substrate parallel heating connection pipe as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit. The cultivation container assemblies are arranged in rows along the first direction, and multiple rows of cultivation container assemblies are arranged parallel to each other along the second direction at intervals on the ground of the fruit and vegetable planting and production unit or suspended above the ground. Each cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is filled in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability. Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating unit. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to each of the substrate heating interfaces.

4. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes the airflow tee column, the diversion joint, the cultivation rack, the cultivation container assembly, the substrate parallel heating connection pipe, the water storage container assembly, and the water storage parallel heating connection pipe as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit. The diversion connector includes a main inlet, an oxygenation diversion port, and a heat storage diversion port. The main inlet is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit. The main inlet is connected to the oxygenation diversion port and the heat storage diversion port respectively. The cultivation rack includes an upper cavity and a lower cavity. The upper cavity serves as a planting area, and the lower cavity serves as a heat storage area. The cultivation racks are arranged in rows along the first direction, and multiple rows of cultivation racks are arranged parallel to each other along the second direction on the ground of the fruit and vegetable planting and production unit. The cultivation container assembly is disposed in the upper cavity shell of the cultivation rack. The cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is contained in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability. Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating section. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the oxygenation branch port, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to each of the substrate heating interfaces. The water storage container assembly is disposed in the lower cavity shell of the cultivation rack. The water storage container assembly includes a water storage container wall, a water storage container cavity, a water storage airflow heat dissipation pipe, and water. The water is contained in the water storage container cavity for storing heat energy. The water storage airflow heat dissipation pipe is connected to the water storage container wall. Within one of the fruit and vegetable planting and production units, each of the water storage airflow heat dissipation pipes is provided with a water storage heating interface at one end near the heating section. The main water storage heating pipe of the parallel water storage heating connection fitting is connected to the heat storage branch port, and the branch water storage heating pipe of the parallel water storage heating connection fitting is connected to each of the water storage heating interfaces.

5. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes the airflow tee column, cultivation bed assembly, and sheet parallel heating connection pipe fittings as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit. The cultivation bed assembly is rectangular and is set on the ground of the fruit and vegetable planting and production unit. The cultivation bed assembly includes a permeable sheet and a sheet airflow heat dissipation pipe. A plurality of the sheet airflow heat dissipation pipes are connected in parallel and spaced apart to the permeable sheet. The sheet airflow heat dissipation pipes are provided with holes for water permeability and air permeability. Within one of the fruit and vegetable planting and production units, each of the sheet airflow heat dissipation pipes is provided with a sheet heating interface at one end near the heating section. The main sheet heating pipe of the sheet parallel heating connection fitting is connected to the air outlet of the heating section or the exhaust port of the fan of the heating section, and the branch sheet heating pipe of the sheet parallel heating connection fitting is connected to each of the sheet heating interfaces.

6. A production unit for a multi-span greenhouse, characterized in that, The greenhouse includes the airflow tee column, underground airflow heat dissipation pipe assembly and underground parallel heating connection pipe fittings of any one of claims 1-2, and the rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit. The underground airflow heat dissipation pipe assembly is rectangular and is installed in the ground below the ground of the fruit and vegetable planting and production unit. The underground airflow heat dissipation pipe assembly includes multiple underground airflow heat dissipation pipes arranged in parallel and spaced apart. The underground airflow heat dissipation pipes are provided with holes for water and air to pass through. Within one of the fruit and vegetable planting and production units, each of the underground airflow heat dissipation pipes is provided with an underground heating interface at one end near the heating unit. The underground heating main pipe of the underground parallel heating connection pipe is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit, and the underground heating branch pipe of the underground parallel heating connection pipe is connected to each of the underground heating interfaces.

7. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes the airflow tee column, the diversion joint, the cultivation container assembly, the substrate parallel heating connection pipe, the underground airflow heat dissipation pipe assembly, and the underground parallel heating connection pipe as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a fruit and vegetable planting production unit, and one of the airflow tee columns is set as the heating part of the fruit and vegetable planting production unit. The diversion connector includes a main inlet, an oxygenation diversion port, and a heat storage diversion port. The main inlet is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit. The main inlet is connected to the oxygenation diversion port and the heat storage diversion port respectively. The cultivation container assemblies are arranged in rows along the first direction, and multiple rows of cultivation container assemblies are arranged parallel to each other along the second direction at intervals on the ground of the fruit and vegetable planting and production unit or suspended above the ground. Each cultivation container assembly includes a cultivation container wall, a cultivation container cavity, a substrate airflow heat dissipation pipe, and a cultivation substrate. The cultivation substrate is filled in the cultivation container cavity and is used to cultivate vegetables or fruit trees. The substrate airflow heat dissipation pipe is connected to the cultivation container wall or passes through the cultivation container wall and is connected to the cultivation substrate. The substrate airflow heat dissipation pipe is provided with holes for water and air permeability. Within one of the fruit and vegetable planting and production units, each of the substrate airflow heat dissipation pipes is provided with a substrate heating interface at one end near the heating section. The main substrate heating pipe of the substrate parallel heating connection pipe is connected to the oxygenation branch port, and the substrate heating branch pipe of the substrate parallel heating connection pipe is connected to the substrate heating interface. The underground airflow heat dissipation pipe assembly is rectangular and is installed in the ground below the ground of the fruit and vegetable planting and production unit. The underground airflow heat dissipation pipe assembly includes multiple underground airflow heat dissipation pipes arranged in parallel and spaced apart. The underground airflow heat dissipation pipes are provided with holes for water and air to pass through. Within one of the fruit and vegetable planting and production units, each of the underground airflow heat dissipation pipes is provided with an underground heating interface at one end near the heating section. The underground heating main pipe of the underground parallel heating connection pipe is connected to the heat storage branch port, and the underground heating branch pipe of the underground parallel heating connection pipe is connected to each of the underground heating interfaces.

8. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes an airflow tee column, a cultivation rack, a cultivation hole plate, a root-supporting sheet assembly, and a root parallel heating connection pipe fitting, as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a root plant planting and production unit, and one of the airflow tee columns is set as the heating part of the root plant planting and production unit. The cultivation rack includes an upper cavity and a lower cavity. The upper cavity serves as a development site for the above-ground organs of the root plant, and the lower cavity serves as a development site for the underground organs of the root plant. The cultivation racks are arranged in rows along the first direction, and multiple rows of the cultivation racks are arranged parallel to each other along the second direction on the ground of the root plant planting and production unit. The cultivation perforated plate is disposed in the upper cavity of the cultivation rack for fixing root plants, and the root containment sheet assembly is disposed in the lower cavity of the cultivation rack for creating a microclimate for root development. The root containment sheet assembly includes a root containment sheet and a root airflow heat dissipation pipe. The root airflow heat dissipation pipe is connected to the root containment sheet and has holes for water and air permeability. Within one of the root plant cultivation and production units, each of the root airflow heat dissipation pipes is provided with a root heating interface at one end near the heating section. The main root heating pipe of the root parallel heating connection fitting is connected to the air outlet of the heating section or the exhaust port of the fan of the heating section, and the branch root heating pipe of the root parallel heating connection fitting is connected to each of the root heating interfaces.

9. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes an airflow tee column, a mushroom cultivation rack, a mushroom enclosure sheet assembly, and a parallel heating connection pipe for mushrooms, as described in any one of claims 1-2. The rectangular ground area enclosed by four adjacent airflow tee columns is set as a mushroom cultivation production unit, and one of the airflow tee columns is set as the heating part of the mushroom cultivation production unit. The edible mushroom cultivation racks are arranged in rows along the first direction, and multiple rows of the edible mushroom cultivation racks are arranged parallel to each other at intervals along the second direction on the ground of the edible mushroom cultivation and production unit; The edible fungus enclosure sheet assembly is arranged around the periphery of the edible fungus cultivation and production unit to create a microclimate for the development of edible fungi. The edible fungus enclosure sheet assembly includes an edible fungus enclosure sheet and an edible fungus airflow heat dissipation pipe. The edible fungus airflow heat dissipation pipe is connected to the edible fungus enclosure sheet and has holes for water and air permeability. Within one of the edible fungus cultivation and production units, each of the edible fungus airflow heat dissipation pipes is provided with an edible fungus heating interface at one end near the heating unit. The main edible fungus heating pipe of the parallel heating connection fitting is connected to the air outlet of the heating unit or the exhaust port of the fan of the heating unit, and the branch edible fungus heating pipe of the parallel heating connection fitting is connected to each of the edible fungus heating interfaces.

10. A production unit for a multi-span greenhouse, characterized in that, The multi-span greenhouse includes airflow tee columns, biological three-dimensional cultivation racks, biological containment sheet components, and biological parallel heating connection pipes as described in any one of claims 1-2. At least one biological three-dimensional cultivation production unit is set up in the rectangular ground area enclosed by four adjacent airflow tee columns, and each airflow tee column near the biological three-dimensional cultivation production unit serves as the heating part of the biological three-dimensional cultivation production unit. The three-dimensional biological cultivation production unit is equipped with multiple layers of the three-dimensional biological cultivation racks on the ground. The biological containment sheet assembly is arranged around the periphery of the three-dimensional biological cultivation rack to create a microclimate for biological development. The biological containment sheet assembly includes a biological containment sheet and a biological airflow heat dissipation pipe. The biological airflow heat dissipation pipe is connected to the biological containment sheet and has holes for water and air permeability. Within one of the three-dimensional biological cultivation production units, each of the biological airflow heat dissipation pipes is provided with a biological heating interface at one end near the corresponding heating section. The main biological heating pipe of the biological parallel heating connection pipe is connected to the air outlet of the corresponding heating section or the exhaust port of the fan of the heating section, and the branch biological heating pipe of the biological parallel heating connection pipe is connected to the corresponding biological heating interface.

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