A three-dimensional breeding method and system for cutting seedlings

Abstract

The present invention discloses a three-dimensional breeding method and system for cutting seedlings. The method is executed by the system. The method mainly includes the following steps: constructing a vertical seedling rack in a seedling greenhouse, the vertical seedling rack includes a plurality of plate heat exchangers arranged horizontally and at equal intervals in the height direction, laying seedling soil on the top surface of the plate heat exchanger, planting cutting seedlings on the seedling soil, installing a lighting lamp between two plate heat exchangers, circulating water in the plate heat exchanger, so that the plate heat exchanger performs heat exchange with the lighting lamp and the seedling soil. The heat emitted from the back of the lighting lamp is taken away by the water in the plate heat exchanger, and will not affect the temperature of the seedling soil. The light and heat emitted from the front of the lighting lamp will cause the temperature of the seedling soil to rise, but at the same time, the seedling soil maintains its own temperature through the water in the plate heat exchanger, thereby avoiding the local temperature of the seedling soil from being too high.

Description

Technical Field

[0001] The invention relates to the field of cutting seedling cultivation, and in particular to a three-dimensional breeding method for cutting seedlings.

[0002] The invention also relates to a three-dimensional breeding system for cutting seedlings. Background Art

[0003] The related technology of three-dimensional propagation of cutting seedlings involved in the subject matter disclosed in the present invention is disclosed in:

[0004] Chinese Patent Publication No. CN114375705A discloses a method for rapid propagation of Forsythia suspensa bud cuttings, which discloses a method for rapid propagation of Forsythia suspensa bud cuttings in a greenhouse.

[0005] Chinese patent publication number CN215454117U discloses a three-dimensional cutting seedling system, which discloses a device for cultivating cutting seedlings using artificial light sources on a three-dimensional seedling rack.

[0006] In the process of rapid propagation of cuttings, the temperature requirement for the seedling bed is high, usually requiring the soil temperature to be between 25° and 30°C. However, in the vertical seedling rack, the distance between the artificial light source and the seedling bed is relatively close. The heat from the artificial light source causes local high temperature to form in the nearby soil, resulting in a low survival rate of the cuttings near the artificial light source. Summary of the invention

[0007] The object of the present invention is to provide a three-dimensional breeding method and system for cutting seedlings, so as to solve the technical problem that when the cutting seedlings are cultivated on a vertical seedling rack, the temperature of the artificial light source affects the temperature of the soil, thereby affecting the survival rate of the cutting seedlings.

[0008] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] The present application provides a three-dimensional breeding method for cutting seedlings, comprising the following steps: constructing a seedling greenhouse, controlling the temperature and humidity in the seedling greenhouse; constructing a vertical seedling rack in the seedling greenhouse, the vertical seedling rack comprising a plurality of plate heat exchangers arranged horizontally and at equal intervals in the height direction; laying seedling soil on the top surface of the plate heat exchangers; installing a lighting lamp between two of the plate heat exchangers, the lighting lamp being connected to the plate heat exchangers located above and being able to exchange heat with the plate heat exchangers, and the portion of the plate heat exchangers that does not contact the seedling soil and the lighting lamp being wrapped with a thermal insulation layer; planting cutting seedlings on the seedling soil; circulating water in the plate heat exchangers so that the plate heat exchangers exchange heat with the lighting lamp and the seedling soil, so as to reduce the temperature of the lighting lamp and control the temperature of the seedling soil at the same time.

[0010] Furthermore, the temperature of the seedling raising soil is monitored, and when the temperature of the seedling raising soil is higher or lower than a set threshold, the water flow velocity inside the plate heat exchanger is accelerated.

[0011] Furthermore, a nozzle is arranged between two adjacent plate heat exchangers to monitor the air temperature and air humidity between the two adjacent plate heat exchangers; when the air temperature reaches a set maximum temperature, or the air humidity reaches a set minimum humidity, the nozzle is turned on to spray water.

[0012] Furthermore, a fan is arranged between two adjacent plate heat exchangers, and the fan is used to drive the relative flow of air between the two adjacent plate heat exchangers and the air inside the seedling greenhouse; when the air temperature between the two adjacent plate heat exchangers reaches the set maximum temperature and the air humidity reaches the set maximum humidity, the nozzle and the fan are turned on.

[0013] The present application also provides a three-dimensional breeding system for cutting seedlings, comprising: a seedling greenhouse; a vertical seedling rack, arranged inside the seedling greenhouse, the vertical seedling rack comprising a plurality of plate heat exchangers arranged horizontally and arranged at equal intervals in the height direction, the top surface of the plate heat exchangers being used for laying seedling soil; a temperature sensor, arranged on the top surface of the plate heat exchangers, the temperature sensor being used for detecting the temperature of the seedling soil; a lighting lamp, installed between two adjacent plate heat exchangers, the lighting lamp being connected to the plate heat exchangers located above and being able to perform heat exchange with the plate heat exchangers, the portion of the plate heat exchangers that does not contact the seedling soil and the lighting lamp being wrapped with a thermal insulation layer; a water pump, the water pump being used for circulating water inside the plate heat exchangers, and accelerating the water flow rate when the temperature of the seedling soil reaches a threshold value, so as to control the temperature of the seedling soil.

[0014] Furthermore, a temperature and humidity sensor and a nozzle are provided between two adjacent plate-type heat exchangers, the temperature and humidity sensor is used to monitor the temperature and humidity of the air, and the nozzle is used to spray water toward the seedling soil on the plate-type heat exchanger below.

[0015] Furthermore, a fan is arranged between two adjacent plate-type heat exchangers, and the fan is used to drive the relative flow of air between the two adjacent plate-type heat exchangers and the air inside the seedling greenhouse.

[0016] Furthermore, a centralized heat exchanger is arranged inside the seedling greenhouse, and the centralized heat exchanger includes a cold end and a hot end, and water flows through the cold end and the hot end to perform heat exchange inside the centralized heat exchanger; a cold water source, a cold end of the centralized heat exchanger, a water pump and a water inlet of the plate heat exchanger are connected in sequence; and a water outlet of the plate heat exchanger, the hot end of the centralized heat exchanger and a water inlet of the nozzle are connected in sequence.

[0017] Furthermore, the plate heat exchanger includes: a body, which is a flat plate made of heat-conducting material, the interior of the body is covered with flow channels, and the flow channels are connected to the outside of the body through a water inlet and a water outlet; a bracket, which is fixedly connected to the top wall of the body and forms a basin shape when combined with the body; a first porous plate, which is horizontally arranged inside the bracket and divides the interior of the bracket into a first planting chamber and a first water storage chamber, the first planting chamber is located above the gravity direction and is used to lay the seedling soil, the first water storage chamber is located below the gravity direction and is used to store water, the first water storage chamber is connected to a drain pipe, and the drain pipe has a height higher than the first porous plate.

[0018] On the other hand, the plate heat exchanger includes: a transparent substrate, which is horizontally arranged and can transmit light; a second porous plate, which is horizontally arranged above the transparent substrate, and the lighting lamp is installed between the transparent substrate and the second porous plate after being waterproofed; a third cylinder, which extends upward around the edge of the second porous plate to form a second planting chamber; a fourth cylinder, which extends upward around the edge of the transparent substrate to form a second water storage chamber, the fourth cylinder is located on the outside of the third cylinder, and the height of the top of the fourth cylinder is between the top and bottom of the third cylinder; a drainage channel, which is connected to one side of the second water storage chamber, and the drainage channel is connected to a water pump; a water inlet channel, which is connected to the other side of the second water storage chamber and extends downward.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] Provided are a three-dimensional breeding method and system for cutting seedlings. The system is used to implement a method of using a plate heat exchanger to isolate heat conduction between a lighting lamp and seedling soil, thereby achieving the following objectives: the heat emitted from the back of the lighting lamp is taken away by water in the plate heat exchanger and will not affect the temperature of the seedling soil; the light and heat emitted from the front of the lighting lamp will cause the temperature of the seedling soil to rise, but at the same time, the seedling soil maintains its own temperature through the water in the plate heat exchanger, thereby preventing the local temperature of the seedling soil from being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 is a system diagram of an embodiment of the present invention;

[0023] Figure 2 A schematic structural diagram of a vertical seedling growing rack according to an embodiment of the present invention;

[0024] Figure 3 A schematic structural diagram of a plate heat exchanger according to an embodiment of the present invention;

[0025] Figure 4 and Figure 5 The three-dimensional images of the plate heat exchanger according to the embodiment of the present invention are from two different perspectives;

[0026] Figure 6 and Figure 7 The assembly drawings of the plate heat exchanger in two viewing angles of the embodiment of the present invention;

[0027] Figure 8 A front view of a plate heat exchanger according to an embodiment of the present invention;

[0028] Fig. 9 for Figure 8 The cross-sectional view in the AA direction and its partial enlarged view;

[0029] Fig.10 A simplified structural diagram of a plate heat exchanger according to an embodiment of the present invention;

[0030] The numbers in the figure represent the following:

[0031] 1-seedling greenhouse; 11-seedling soil; 2-vertical seedling rack; 21-temperature sensor; 22-temperature and humidity sensor; 23-sensor bracket; 24-column; 3-plate heat exchanger; 31-insulation layer; 32-first pipeline; 33-second pipeline; 34-body; 341-flow channel; 342-water inlet; 343-water outlet; 344-nut; 35-bracket; 351-rectangular ring; 352-bolt; 353-first cylinder; 35 4-sealing ring; 355-second cylinder; 36-first porous plate; 37-first planting chamber; 38-first water storage chamber; 39-drainage pipe; 41-transparent substrate; 42-second porous plate; 43-third cylinder; 44-fourth cylinder; 45-second planting chamber; 46-second water storage chamber; 47-drainage channel; 48-water inlet channel; 5-lighting lamp; 6-nozzle; 61-third pipeline; 62-fourth pipeline; 7-fan; 8-centralized heat exchanger. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-3 As shown, an embodiment of a three-dimensional propagation method of cutting seedlings is provided to solve the above-mentioned technical problems.

[0034] It mainly includes the following steps:

[0035] Build a seedling greenhouse 1, and control the temperature in the seedling greenhouse 1 to be 30° to 36°C and the humidity to be 80% to 90%;

[0036] A vertical seedling rack 2 is constructed in the seedling greenhouse 1, and the vertical seedling rack 2 includes a plurality of plate heat exchange fins 3 which are horizontally arranged and evenly spaced in the height direction;

[0037] A structure for guiding the accumulated water to flow out is made on the top surface of the plate heat exchanger 3, and then the seedling raising soil 11 is laid, the seedling raising soil 11 is disinfected and sprayed with water to make it thoroughly wet;

[0038] An illuminating lamp 5 is installed between two plate heat exchangers 3. The illuminating lamp 5 is connected to the plate heat exchanger 3 located above and can exchange heat with the plate heat exchanger 3. The portion of the plate heat exchanger 3 that does not contact the seedling soil 11 and the illuminating lamp 5 is wrapped with a thermal insulation layer 31.

[0039] Planting cutting seedlings on the nursery soil 11;

[0040] Water circulates in the plate heat exchanger 3, so that the plate heat exchanger 3 exchanges heat with the lighting lamp 5 and the seedling soil 11 to reduce the temperature of the lighting lamp 5, while controlling the temperature of the seedling soil 11 to 25° to 30°C.

[0041] In the above embodiment, the heat emitted from the back of the lighting lamp 5 is taken away by the water in the plate heat exchanger 3 and will not affect the temperature of the seedling raising soil 11 .

[0042] The light and heat emitted from the front of the lighting lamp 5 will cause the temperature of the seedling raising soil 11 to rise, but at the same time, the seedling raising soil 11 maintains its own temperature through the water in the plate heat exchanger 3, thereby preventing the local temperature of the seedling raising soil 11 from being too high.

[0043] Since the ambient temperature is 5-6° C. higher than the temperature of the seedling soil 11, the water temperature in the plate heat exchanger 3 should be close to 25° C., and the specific water temperature is also affected by the flow rate and flow velocity of the water.

[0044] Further:

[0045] The temperature of the seedling soil 11 can be controlled by circulating a large amount of water at about 25° C. inside the plate heat exchanger 3 , but this requires a high power of the water pump and wastes energy.

[0046] In order to solve the above technical problems, this embodiment also provides the following optional methods:

[0047] The temperature of the seedling raising soil 11 is monitored, and when the temperature of the seedling raising soil 11 is higher or lower than a set threshold, the water flow velocity inside the plate heat exchanger 3 is accelerated.

[0048] When the temperature of the seedling raising soil 11 is lower than 25° C. or higher than 30° C., increasing the water flow velocity inside the plate heat exchanger fins 3 can make the temperature of the seedling raising soil 11 close to the temperature inside the plate heat exchanger fins 3 .

[0049] Further: In the related art, a method of spraying water inside the seedling greenhouse 1 is used to control the temperature and humidity inside the seedling greenhouse 1. Based on the above embodiment, it is difficult for spraying water inside the seedling greenhouse 1 to directly affect the plate heat exchanger fins 3, because the temperature and humidity inside the seedling greenhouse 1 do not represent the temperature and humidity between the plate heat exchanger fins 3. Affected by the lighting lamp 5, the temperature between two adjacent plate heat exchanger fins 3 must be higher than the temperature inside the seedling greenhouse 1, and its humidity must be lower than the humidity inside the seedling greenhouse 1.

[0050] In order to solve the above technical problems, this embodiment also provides the following optional methods:

[0051] A nozzle 6 is arranged between two adjacent plate heat exchangers 3 to monitor the air temperature and air humidity between the two adjacent plate heat exchangers 3;

[0052] When the air temperature reaches the set maximum temperature, or the air humidity reaches the set minimum humidity, the spray head 6 is turned on to spray water.

[0053] When the temperature between two adjacent plate heat exchangers 3 is higher than 37.6° C., or the humidity is lower than 80%, the nozzle 6 is turned on and water is sprayed onto the seedling soil 11 .

[0054] The water temperature sprayed by the nozzle 6 should be close to 30°C to prevent the air temperature from being lower than 30°C and to prevent the temperature of the seedling raising soil 11 from being higher than 30°C.

[0055] Furthermore: when the air temperature reaches the specified maximum temperature and the air humidity also reaches the set maximum temperature, the nozzle 6 not working will cause the air temperature to be too high, while the nozzle 6 working will cause the air humidity to be too high.

[0056] In order to solve the above technical problems, this embodiment also provides the following optional methods:

[0057] A fan 7 is provided between two adjacent plate-type heat exchangers 3, and the fan 7 is used to drive the air between the two adjacent plate-type heat exchangers 3 and the air inside the seedling greenhouse 1 to flow relative to each other;

[0058] When the air temperature between two adjacent plate heat exchangers 3 reaches a set maximum temperature, and the air humidity reaches a set maximum humidity, the nozzle 6 and the fan 7 are turned on.

[0059] The above method is based on a basic condition, that is, the air humidity inside the seedling greenhouse 1 is lower than the air humidity between two adjacent plate heat exchangers 3. Since the nozzle 6 only sprays water on the seedling soil 11 between two adjacent plate heat exchangers 3, no other nozzles are set inside the seedling greenhouse 1. Therefore, this basic condition can be achieved.

[0060] Furthermore: In order to enable the above method to be executed, the present embodiment also provides a three-dimensional breeding system for cutting seedlings, whose main structure includes: a seedling greenhouse 1, a vertical seedling rack 2, a temperature sensor 21, a lighting lamp 5 and a water pump (not shown in the figure).

[0061] The vertical seedling raising frame 2 is arranged inside the seedling raising greenhouse 1, and the vertical seedling raising frame 2 includes a plurality of plate heat exchange fins 3 which are arranged horizontally and at equal intervals in the height direction, and the top surface of the plate heat exchange fins 3 is used for laying the seedling raising soil 11;

[0062] The temperature sensor 21 is arranged on the top surface of the plate heat exchanger 3, and the temperature sensor 21 is used to detect the temperature of the seedling soil 11;

[0063] The lighting lamp 5 is installed between two adjacent plate heat exchangers 3. The lighting lamp 5 is connected to the plate heat exchanger 3 located above and can exchange heat with the plate heat exchanger 3. The portion of the plate heat exchanger 3 that does not contact the seedling soil 11 and the lighting lamp 5 is wrapped with a thermal insulation layer 31.

[0064] The water pump is used to circulate water inside the plate heat exchanger 3 and to speed up the water flow when the temperature of the seedling raising soil 11 reaches a threshold value so as to control the temperature of the seedling raising soil 11 .

[0065] The temperature sensor 21 and the water pump are connected to each other through the controller. The controller determines whether the operating power of the water pump needs to be increased according to the signal sent by the temperature sensor 21 to improve the heat exchange efficiency of the plate heat exchanger 3.

[0066] The plate heat exchanger fins 3 are connected by pillars 24 and placed on the ground.

[0067] Further:

[0068] A temperature and humidity sensor 22 and a nozzle 6 are provided between two adjacent plate heat exchangers 3 . The temperature and humidity sensor 22 is used to monitor the temperature and humidity of the air, and the nozzle 6 is used to spray water toward the seedling soil 11 on the plate heat exchanger 3 below.

[0069] The temperature and humidity sensor 22 is suspended between two adjacent plate heat exchange fins 3 through a sensor bracket 23 .

[0070] The nozzle 6 can input water through a water pump, or by building a water tank at a high place and using gravity potential energy to input water.

[0071] Between two adjacent plate heat exchangers 3 , a third pipe 61 connected to a nozzle 6 and supplying 30° C. water to the nozzle 6 is installed on the outside of the thermal insulation layer 31 at the bottom of the upper plate heat exchanger 3 .

[0072] Further:

[0073] A fan 7 is arranged between two adjacent plate-type heat exchange fins 3 , and the fan 7 is used to drive the air between the two adjacent plate-type heat exchange fins 3 and the air inside the seedling greenhouse 1 to flow relative to each other.

[0074] The working steps of the above device have been explained in the previous text and will not be repeated here.

[0075] Furthermore, the heat emitted by the lighting lamp 5 can be used to heat cold water, so that the water temperature rises to 25° C. required by the plate heat exchanger 3 or 30° C. required by the nozzle 6, thereby saving energy.

[0076] In order to prevent the heat emitted by the lighting lamp 5 from being dissipated into the air and being wasted, the following optional embodiments are provided based on the above embodiments.

[0077] A concentrated heat exchanger 8 is arranged inside the seedling greenhouse 1. The concentrated heat exchanger 8 includes a cold end and a hot end. Water flows through the cold end and the hot end to perform heat exchange inside the concentrated heat exchanger 8.

[0078] The cold water source, the cold end of the centralized heat exchanger 8, the water pump and the water inlet of the plate heat exchanger 3 are connected in sequence;

[0079] The water outlet of the plate heat exchanger 3, the hot end of the concentrated heat exchanger 8 and the water inlet of the nozzle 6 are sequentially connected.

[0080] When necessary, a water pump may be added between the hot end of the concentrated heat exchanger 8 and the water inlet of the nozzle 6 to increase the water spraying pressure of the nozzle 6 .

[0081] The centralized heat exchanger 8 is any one of a partition heat exchanger, a direct contact heat exchanger or an energy storage heat exchanger. The centralized heat exchanger 8 also has a built-in electric heating wire or electric heating plate. When the temperature of the cold water source is low, or the heat emitted by the lighting lamp 5 is insufficient to raise the water temperature to 25°C required by the plate heat exchanger 3 or 30°C required by the nozzle 6, the centralized heat exchanger 8 electrically heats the water so that the plate heat exchanger 3 and the nozzle 6 obtain water flow at the required temperature.

[0082] Cold water source refers to tap water, well water or other water sources, whose temperature is lower than 25℃. If the temperature of the cold water source is too high, you can consider building a reservoir underground and use the underground constant temperature of 16℃ to lower the temperature of the cold water source.

[0083] On a vertical seedling rack 2: the water inlet of each plate heat exchanger 3 is arranged on one side of the vertical seedling rack 2 and connected to the first pipe 32, and the water outlet of each plate heat exchanger 3 is arranged on the other side of the vertical seedling rack 2 and connected to the second pipe 33;

[0084] Each third pipeline 61 is connected to a vertical fourth pipeline 62 .

[0085] The cold water source is connected to the cold end input port of the centralized heat exchanger 8, and the first pipe 32 is connected to the cold end output port of the centralized heat exchanger 8. The cold water enters the interior of the centralized heat exchanger 8 for heat exchange, and then is heated to 25°C and output to the interior of the plate heat exchanger 3 through the first pipe 32.

[0086] The second pipe 33 is connected to the hot end input port of the centralized heat exchanger 8, and the fourth pipe 62 is connected to the hot end output port of the centralized heat exchanger 8. After the 25°C water is heated by the lighting lamp 5, it is discharged through the second pipe 33 and enters the interior of the centralized heat exchanger 8 for heat exchange, and then is cooled to 30°C and output to the interior of the fourth pipe 62.

[0087] The insufficient temperature difference is made up by the electric heating sheet or the electric heating wire.

[0088] Furthermore, before laying the seedling soil 11 on the top surface of the plate heat exchanger 3, a structure is required to allow moisture and air in the soil to circulate.

[0089] To this end, an optional embodiment of the plate heat exchanger 3 is provided, such as Figure 4-9 As shown, its specific structure is described as follows.

[0090] The plate heat exchanger 3 includes a body 34 , a bracket 35 , a first porous plate 36 and a drain pipe 39 .

[0091] The body 34 is a flat plate made of heat-conducting material. The interior of the body 34 is covered with flow channels 341. The flow channels 341 are connected to the exterior of the body 34 through a water inlet 342 and a water outlet 343.

[0092] The bracket 35 is fixedly connected to the top wall of the body 34, and forms a basin shape when combined with the body 34;

[0093] The first porous plate 36 is horizontally arranged inside the bracket 35, and divides the inside of the bracket 35 into a first planting chamber 37 and a first water storage chamber 38. The first planting chamber 37 is located above the gravity direction and is used for laying seedling soil 11, and the first water storage chamber 38 is located below the gravity direction and is used for storing water. The first water storage chamber 38 is connected to a drain pipe 39, and the drain pipe 39 has a height higher than the first porous plate 36.

[0094] The bracket 35 is used to connect the column 24 and the main body 34. Excess water sprayed into the first planting chamber 37 penetrates through the seedling soil 11 and the first porous plate 36 to the first water storage chamber 38 for accumulation, so that the water inside the seedling soil 11 is not too much. The water level inside the first water storage chamber 38 is slightly higher than the first porous plate 36 under the control of the height of the drain pipe 39, so that the seedling soil 11 can always absorb moisture.

[0095] Water at 25°C flows through the water inlet 342, the flow channel 341 and the water outlet 343, so that the water accumulated in the first water storage chamber 38 is close to 25°C, so that the temperature of the seedling soil 11 can be maintained at 25°~30°C.

[0096] Excess water in the first water storage chamber 38 is discharged through the drain pipe 39 , filtered, and then pumped into the second pipeline 33 under pressure to converge into the centralized heat exchanger 8 .

[0097] Specifically: a nut 344 is welded on the top surface of the body 34 , and the bracket 35 includes: a rectangular ring 351 , which is parallel to the body 34 and connected to the nut 344 via a bolt 352 ;

[0098] The first cylinder 353 extends vertically downward around the inner circle of the rectangular ring 351 and is sealed with the top wall of the body 34 through the sealing ring 354 to form a first water storage chamber 38. The drainage pipe 39 passes through the first cylinder 353 and communicates with the interior of the first water storage chamber 38.

[0099] The second cylinder 355 extends vertically upward around the outer ring of the rectangular ring 351 to form a first planting chamber 37.

[0100] On the other hand, Fig.10 As shown, the plate heat exchanger 3 can also be simplified into the structure described below.

[0101] The plate heat exchanger 3 includes: a transparent substrate 41, a second porous plate 42, a third cylinder 43, a fourth cylinder 44, a drainage channel 47 and a water inlet channel 48;

[0102] The transparent substrate 41 is horizontally arranged and can transmit light, and the lighting lamp 5 is installed on the top wall of the transparent substrate 41 after being waterproofed;

[0103] The second porous plate 42 is horizontally arranged above the transparent substrate 41;

[0104] The third cylinder 43 surrounds the edge of the second porous plate 42 and extends upward to form a second planting chamber 45;

[0105] The fourth cylinder 44 extends upward around the edge of the transparent substrate 41 to form a second water storage chamber 46. The fourth cylinder 44 is located outside the third cylinder 43, and the height of the top of the fourth cylinder 44 is located between the top and bottom of the third cylinder 43.

[0106] The drainage channel 47 is connected to one side of the second water storage chamber 46, and the drainage channel 47 is connected to the water pump;

[0107] The water inlet channel 48 is connected to the other side of the second water storage chamber 46 and extends downward.

[0108] The drainage channel 47 is connected to the water inlet of the cold end of the centralized heat exchanger 8 through a water pump, and the water inlet channel 48 is connected to the water outlet of the cold end of the centralized heat exchanger 8, and the height of the centralized heat exchanger 8 is lower than the water inlet channel 48. When the water pump is working, the drainage channel 47 generates 25°C water from the water outlet of the cold end of the centralized heat exchanger 8 through vacuum suction, so that the water inside the second water storage chamber 46 can circulate to take away the temperature of the lighting lamp 5.

[0109] The water sprayed by the nozzle 6 penetrates through the seedling soil 11 and the second porous plate 42 and then infiltrates into the second water storage chamber 46 , and is directly pumped to the centralized heat exchanger 8 by the water pump, and is sprayed onto the seedling soil 11 again through the nozzle 6 after being heated.

[0110] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A three-dimensional breeding system for cutting seedlings, characterized in that: include: Seedling greenhouse (1); A vertical seedling raising frame (2) is arranged inside the seedling raising greenhouse (1), the vertical seedling raising frame (2) comprises a plurality of plate-type heat exchange fins (3) which are arranged horizontally and at equal intervals in the height direction, and the top surfaces of the plate-type heat exchange fins (3) are used for laying seedling raising soil (11); A temperature sensor (21) is arranged on the top surface of the plate heat exchanger (3), and the temperature sensor (21) is used to detect the temperature of the seedling raising soil (11); an illuminating lamp (5) installed between two adjacent plate-type heat exchangers (3); the illuminating lamp (5) is connected to the plate-type heat exchanger (3) located above and is capable of exchanging heat with the plate-type heat exchanger (3); a portion of the plate-type heat exchanger (3) that does not contact the seedling raising soil (11) and the illuminating lamp (5) is wrapped with a thermal insulation layer (31); A water pump, the water pump being used to circulate water inside the plate heat exchanger (3) and to increase the speed of the water flow when the temperature of the seedling raising soil (11) reaches a threshold value, so as to control the temperature of the seedling raising soil (11); A temperature and humidity sensor (22) and a nozzle (6) are provided between two adjacent plate-type heat exchangers (3); the temperature and humidity sensor (22) is used to monitor the temperature and humidity of the air; and the nozzle (6) is used to spray water toward the seedling soil (11) on the plate-type heat exchanger (3) below. The plate heat exchanger (3) comprises: A body (34), the body (34) being a flat plate made of a heat-conducting material, the interior of the body (34) being covered with flow channels (341), the flow channels (341) being connected to the exterior of the body (34) via a water inlet (342) and a water outlet (343); A bracket (35) is fixedly connected to the top wall of the body (34) and forms a basin shape when combined with the body (34); The first porous plate (36) is horizontally arranged inside the support (35) and divides the inside of the support (35) into a first planting chamber (37) and a first water storage chamber (38). The first planting chamber (37) is located above the gravity direction and is used for laying the seedling soil (11). The first water storage chamber (38) is located below the gravity direction and is used for storing water. The first water storage chamber (38) is connected to a drainage pipe (39), and the drainage pipe (39) has a height higher than the first porous plate (36).

2. A three-dimensional breeding system for cutting seedlings according to claim 1, characterized in that: A fan (7) is arranged between two adjacent plate-type heat exchange fins (3), and the fan (7) is used to drive the relative flow of air between the two adjacent plate-type heat exchange fins (3) and the air inside the seedling greenhouse (1).

3. A three-dimensional breeding system for cutting seedlings according to claim 1 or 2, characterized in that: A concentrated heat exchanger (8) is arranged inside the seedling raising greenhouse (1), wherein the concentrated heat exchanger (8) comprises a cold end and a hot end, and water flows through the cold end and the hot end to perform heat exchange inside the concentrated heat exchanger (8); The cold water source, the cold end of the centralized heat exchanger (8), the water pump and the water inlet of the plate heat exchanger (3) are connected in sequence; The water outlet of the plate heat exchanger (3), the hot end of the concentrated heat exchanger (8) and the water inlet of the nozzle (6) are sequentially connected.

4. A three-dimensional breeding system for cutting seedlings according to claim 1, characterized in that: The plate heat exchanger (3) comprises: A transparent substrate (41) is arranged horizontally and is light-permeable; A second porous plate (42) is horizontally arranged above the transparent substrate (41); the lighting lamp (5) is waterproofed and installed between the transparent substrate (41) and the second porous plate (42); A third cylinder (43) surrounds the edge of the second porous plate (42) and extends upward to form a second planting chamber (45); a fourth cylinder (44) extending upward around the edge of the transparent substrate (41) to form a second water storage chamber (46); the fourth cylinder (44) is located outside the third cylinder (43); and the height of the top end of the fourth cylinder (44) is located between the top end and the bottom end of the third cylinder (43); A drainage channel (47) connected to one side of the second water storage chamber (46), wherein the drainage channel (47) is connected to a water pump; The water inlet channel (48) is connected to the other side of the second water storage chamber (46) and extends downward.

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